Search NASA⌕ Search

SEARCH · Search NASA

Results for “peroxide”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 847 records · Page 47
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Al(NO6)3 by Materials Project

AlO8NO3N2O5O2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four hydrogen peroxide molecules, four nitric acid molecules, four nitrogen pentoxide molecules, and four AlO8 clusters. In each AlO8 cluster, Al is bonded in a tetrahedral geometry to four O atoms. There are a spread of Al–O bond distances ranging from 1.72–1.89 Å. There are eight inequivalent O sites. In the first O site, O is bonded in a water-like geometry to two O atoms. There is one shorter (1.24 Å) and one longer (1.61 Å) O–O bond length. In the second O site, O is bonded in a water-like geometry to two O atoms. There is one shorter (1.31 Å) and one longer (1.72 Å) O–O bond length. In the third O site, O is bonded in a distorted water-like geometry to one Al and one O atom. The O–O bond length is 1.31 Å. In the fourth O site, O is bonded in a single-bond geometry to one O atom. In the fifth O site, O is bonded in a distorted single-bond geometry to one Al and one O atom. In the sixth O site, O is bonded in a water-like geometry to two O atoms. In the seventh O site, O is bonded in a single-bond geometry to one Al atom. In the eighth O site, O is bonded in a distorted single-bond geometry to one Al and one O atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NaZn4H6SClO16 by Materials Project

NaZn4H6SO14ClO2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional and consists of two hydrogen peroxide molecules and one NaZn4H6SO14Cl framework. In the NaZn4H6SO14Cl framework, Na is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Na–O bond distances ranging from 2.44–2.84 Å. There are four inequivalent Zn sites. In the first Zn site, Zn is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Zn–O bond distances ranging from 2.05–2.16 Å. In the second Zn site, Zn is bonded to six O atoms to form ZnO6 octahedra that share a cornercorner with one SO4 tetrahedra, corners with two equivalent ZnClO3 tetrahedra, and edges with three ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.08–2.38 Å. In the third Zn site, Zn is bonded to six O atoms to form distorted ZnO6 octahedra that share a cornercorner with one SO4 tetrahedra, corners with two equivalent ZnClO3 tetrahedra, and edges with three ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.05–2.43 Å. In the fourth Zn site, Zn is bonded to three O and one Cl atom to form corner-sharing ZnClO3 tetrahedra. The corner-sharing octahedra tilt angles range from 53–59°. There are two shorter (2.01 Å) and one longer (2.02 Å) Zn–O bond lengths. The Zn–Cl bond length is 2.23 Å. There are six inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.97 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.97 Å. In the third H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.97 Å. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the sixth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. S is bonded to four O atoms to form SO4 tetrahedra that share corners with two ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 54–55°. There are a spread of S–O bond distances ranging from 1.49–1.52 Å. There are fourteen inequivalent O sites. In the first O site, O is bonded in a distorted single-bond geometry to three Zn and one H atom. In the second O site, O is bonded in a distorted single-bond geometry to three Zn and one H atom. In the third O site, O is bonded to three Zn and one H atom to form distorted edge-sharing OZn3H tetrahedra. In the fourth O site, O is bonded in a distorted single-bond geometry to three Zn and one H atom. In the fifth O site, O is bonded in a distorted single-bond geometry to three Zn and one H atom. In the sixth O site, O is bonded in a distorted single-bond geometry to three Zn and one H atom. In the seventh O site, O is bonded in a distorted single-bond geometry to two Zn and one S atom. In the eighth O site, O is bonded in a distorted single-bond geometry to one Na and one S atom. In the ninth O site, O is bonded in a distorted single-bond geometry to one Na and one S atom. In the tenth O site, O is bonded in a single-bond geometry to one Na and one S atom. In the eleventh O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.24 Å. In the twelfth O site, O is bonded in a water-like geometry to one Na and one O atom. The O–O bond length is 1.23 Å. In the thirteenth O site, O is bonded in a bent 150 degrees geometry to one Na and one O atom. In the fourteenth O site, O is bonded in a bent 120 degrees geometry to one Na and one O atom. Cl is bonded in a single-bond geometry to one Zn atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3SiCSO25 by Materials Project

Ca3SiCSO23O2 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two hydrogen peroxide molecules and one Ca3SiCSO23 sheet oriented in the (0, 0, 1) direction. In the Ca3SiCSO23 sheet, there are three inequivalent Ca sites. In the first Ca site, Ca is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.89 Å. In the second Ca site, Ca is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Ca–O bond distances ranging from 2.21–2.81 Å. In the third Ca site, Ca is bonded in a 5-coordinate geometry to five O atoms. There are a spread of Ca–O bond distances ranging from 2.27–2.59 Å. Si is bonded in a distorted trigonal bipyramidal geometry to five O atoms. There are a spread of Si–O bond distances ranging from 1.64–1.98 Å. C is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.21 Å) and two longer (1.38 Å) C–O bond length. S is bonded in a tetrahedral geometry to four O atoms. There are a spread of S–O bond distances ranging from 1.47–1.51 Å. There are twenty-three inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one S atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Ca and one S atom. In the third O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and one S atom. In the fourth O site, O is bonded in a single-bond geometry to one S atom. In the fifth O site, O is bonded in a single-bond geometry to one C atom. In the sixth O site, O is bonded in a distorted single-bond geometry to one C and one O atom. The O–O bond length is 1.41 Å. In the seventh O site, O is bonded in a distorted single-bond geometry to one C and one O atom. The O–O bond length is 1.42 Å. In the eighth O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.23 Å. In the ninth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Ca, one Si, and one O atom. The O–O bond length is 1.40 Å. In the tenth O site, O is bonded in a distorted trigonal planar geometry to one Ca, one Si, and one O atom. The O–O bond length is 1.33 Å. In the eleventh O site, O is bonded in a distorted trigonal non-coplanar geometry to two Ca and one Si atom. In the twelfth O site, O is bonded in a distorted single-bond geometry to one Ca, one Si, and one O atom. The O–O bond length is 1.36 Å. In the thirteenth O site, O is bonded in a distorted trigonal planar geometry to two Ca and one Si atom. In the fourteenth O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom. In the fifteenth O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom. In the sixteenth O site, O is bonded in a distorted bent 120 degrees geometry to one Ca and one O atom. In the seventeenth O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom. The O–O bond length is 1.23 Å. In the eighteenth O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom. The O–O bond length is 1.24 Å. In the nineteenth O site, O is bonded in a single-bond geometry to one O atom. In the twentieth O site, O is bonded in a single-bond geometry to one O atom. In the twenty-first O site, O is bonded in a distorted water-like geometry to one Ca and one O atom. In the twenty-second O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom. In the twenty-third O site, O is bonded in a bent 120 degrees geometry to one Ca and one O atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MgSO9 by Materials Project

MgSO5(O2)2 crystallizes in the triclinic P1 space group. The structure is one-dimensional and consists of two hydrogen peroxide molecules and one MgSO5 ribbon oriented in the (1, 0, 0) direction. In the MgSO5 ribbon, Mg is bonded in a distorted tetrahedral geometry to four O atoms. There are a spread of Mg–O bond distances ranging from 1.93–2.08 Å. S is bonded in a distorted trigonal non-coplanar geometry to three O atoms. There are a spread of S–O bond distances ranging from 1.49–1.99 Å. There are five inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Mg and one S atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Mg and one O atom. The O–O bond length is 1.32 Å. In the third O site, O is bonded in a bent 150 degrees geometry to one Mg and one S atom. In the fourth O site, O is bonded in a water-like geometry to one S and one O atom. In the fifth O site, O is bonded in a single-bond geometry to one Mg atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Rb2NO4 by Materials Project

(Rb2O2)2N2(O2)2 crystallizes in the orthorhombic Pmma space group. The structure is zero-dimensional and consists of two ammonia molecules, two hydrogen peroxide molecules, and four rubidium hydroxide molecules.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmSe2NO11 by Materials Project

TmNSe2O9O2 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of two hydrogen peroxide molecules and one TmNSe2O9 sheet oriented in the (0, 0, 1) direction. In the TmNSe2O9 sheet, Tm is bonded to six O atoms to form TmO6 octahedra that share corners with three equivalent SeO4 tetrahedra. There are a spread of Tm–O bond distances ranging from 2.17–2.27 Å. N is bonded in a water-like geometry to two O atoms. There is one shorter (1.17 Å) and one longer (1.56 Å) N–O bond length. There are two inequivalent Se sites. In the first Se site, Se is bonded to four O atoms to form SeO4 tetrahedra that share corners with three equivalent TmO6 octahedra. The corner-sharing octahedra tilt angles range from 35–57°. There are a spread of Se–O bond distances ranging from 1.67–1.99 Å. In the second Se site, Se is bonded in a trigonal non-coplanar geometry to three O atoms. There is two shorter (1.69 Å) and one longer (1.87 Å) Se–O bond length. There are nine inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Tm and one Se atom. In the second O site, O is bonded in a single-bond geometry to one N atom. In the third O site, O is bonded in a water-like geometry to one Se and one O atom. The O–O bond length is 1.36 Å. In the fourth O site, O is bonded in a bent 120 degrees geometry to one Tm and one O atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Tm and one Se atom. In the sixth O site, O is bonded in a bent 120 degrees geometry to one Tm and one Se atom. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Tm and one Se atom. In the eighth O site, O is bonded in a water-like geometry to one N and one Se atom. In the ninth O site, O is bonded in a bent 150 degrees geometry to one Tm and one Se atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaO10 by Materials Project

BaO10 crystallizes in the tetragonal P4/mcc space group. The structure is one-dimensional and consists of two hydrogen peroxide molecules and one BaO8 ribbon oriented in the (0, 0, 1) direction. In the BaO8 ribbon, Ba is bonded in a 8-coordinate geometry to eight equivalent O atoms. All Ba–O bond lengths are 2.82 Å. O is bonded in a bent 120 degrees geometry to one Ba and one O atom. The O–O bond length is 1.27 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on W17O47 by Materials Project

W17O47 crystallizes in the triclinic P1 space group. The structure is three-dimensional and consists of one hydrogen peroxide molecule and one W17O45 framework. In the W17O45 framework, there are seventeen inequivalent W+5.53+ sites. In the first W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form distorted WO6 octahedra that share corners with two equivalent WO6 octahedra, an edgeedge with one WO6 octahedra, and an edgeedge with one WO5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 10°. There are a spread of W–O bond distances ranging from 1.83–2.09 Å. In the second W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 5–25°. There are a spread of W–O bond distances ranging from 1.92–2.20 Å. In the third W+5.53+ site, W+5.53+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of W–O bond distances ranging from 1.85–2.06 Å. In the fourth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form WO6 octahedra that share corners with three WO6 octahedra, a cornercorner with one WO5 square pyramid, a cornercorner with one WO5 trigonal bipyramid, and an edgeedge with one WO6 octahedra. The corner-sharing octahedra tilt angles range from 3–31°. There are a spread of W–O bond distances ranging from 1.93–2.10 Å. In the fifth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form WO6 octahedra that share corners with three WO6 octahedra, a cornercorner with one WO5 trigonal bipyramid, and edges with two WO6 octahedra. The corner-sharing octahedra tilt angles range from 8–33°. There are a spread of W–O bond distances ranging from 1.91–2.16 Å. In the sixth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 6–32°. There are a spread of W–O bond distances ranging from 1.92–2.11 Å. In the seventh W+5.53+ site, W+5.53+ is bonded in a pentagonal planar geometry to five O2- atoms. There are a spread of W–O bond distances ranging from 2.00–2.34 Å. In the eighth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form WO6 octahedra that share corners with three WO6 octahedra, a cornercorner with one WO5 trigonal bipyramid, and edges with two WO6 octahedra. The corner-sharing octahedra tilt angles range from 4–33°. There are a spread of W–O bond distances ranging from 1.86–2.14 Å. In the ninth W+5.53+ site, W+5.53+ is bonded to five O2- atoms to form distorted corner-sharing WO5 square pyramids. There are a spread of W–O bond distances ranging from 1.96–2.27 Å. In the tenth W+5.53+ site, W+5.53+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of W–O bond distances ranging from 1.72–2.41 Å. In the eleventh W+5.53+ site, W+5.53+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of W–O bond distances ranging from 1.90–2.42 Å. In the twelfth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 6–25°. There are a spread of W–O bond distances ranging from 1.91–2.09 Å. In the thirteenth W+5.53+ site, W+5.53+ is bonded to five O2- atoms to form WO5 trigonal bipyramids that share a cornercorner with one WO6 octahedra, corners with two equivalent WO5 trigonal bipyramids, and an edgeedge with one WO6 octahedra. The corner-sharing octahedral tilt angles are 21°. There are a spread of W–O bond distances ranging from 1.92–2.16 Å. In the fourteenth W+5.53+ site, W+5.53+ is bonded to five O2- atoms to form WO5 square pyramids that share a cornercorner with one WO6 octahedra and corners with three WO5 square pyramids. The corner-sharing octahedral tilt angles are 28°. There are a spread of W–O bond distances ranging from 1.79–1.97 Å. In the fifteenth W+5.53+ site, W+5.53+ is bonded to five O2- atoms to form WO5 trigonal bipyramids that share corners with two WO6 octahedra and corners with two equivalent WO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 48–58°. There are a spread of W–O bond distances ranging from 1.73–2.00 Å. In the sixteenth W+5.53+ site, W+5.53+ is bonded to six O2- atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra tilt angles range from 7–32°. There are a spread of W–O bond distances ranging from 1.92–2.12 Å. In the seventeenth W+5.53+ site, W+5.53+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of W–O bond distances ranging from 1.86–2.16 Å. There are forty-five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two W+5.53+ atoms. In the third O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one W+5.53+ and one O2- atom. The O–O bond length is 1.40 Å. In the fourth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three W+5.53+ atoms. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W+5.53+ atoms. In the eighth O2- site, O2- is bonded in a linear geometry to two W+5.53+ atoms. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two W+5.53+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the eleventh O2- site, O2- is bonded in a distorted T-shaped geometry to three W+5.53+ atoms. In the twelfth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the thirteenth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the fourteenth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the fifteenth O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the sixteenth O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the seventeenth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the eighteenth O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the nineteenth O2- site, O2- is bonded in a single-bond geometry to one W+5.53+ atom. In the twentieth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the twenty-first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two W+5.53+ atoms. In the twenty-second O2- site, O2- is bonded in a distorted water-like geometry to two W+5.53+ atoms. In the twenty-third O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the twenty-fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W+5.53+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the twenty-sixth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the twenty-seventh O2- site, O2- is bonded in a 2-coordinate geometry to one W+5.53+ and one O2- atom. The O–O bond length is 1.30 Å. In the twenty-eighth O2- site, O2- is bonded in a single-bond geometry to one O2- atom. In the twenty-ninth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the thirtieth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one W+5.53+ and one O2- atom. The O–O bond length is 1.31 Å. In the thirty-first O2- site, O2- is bonded in a 3-coordinate geometry to three W+5.53+ atoms. In the thirty-second O2- site, O2- is bonded in a 2-coordinate geometry to one W+5.53+ and one O2- atom. In the thirty-third O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W+5.53+ atoms. In the thirty-fourth O2- site, O2- is bonded in a T-shaped geometry to three W+5.53+ atoms. In the thirty-fifth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the thirty-sixth O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the thirty-seventh O2- site, O2- is bonded in a T-shaped geometry to three W+5.53+ atoms. In the thirty-eighth O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the thirty-ninth O2- site, O2- is bonded in a single-bond geometry to one O2- atom. In the fortieth O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W+5.53+ atoms. In the forty-first O2- site, O2- is bonded in a water-like geometry to two W+5.53+ atoms. In the forty-second O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the forty-third O2- site, O2- is bonded in a linear geometry to two equivalent W+5.53+ atoms. In the forty-fourth O2- site, O2- is bonded in a distorted T-shaped geometry to three W+5.53+ atoms. In the forty-fifth O2- site, O2- is bonded in a single-bond geometry to one W+5.53+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrAl2(Si2O7)3 by Materials Project

SrAl2Si6O19O2 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional and consists of two hydrogen peroxide molecules and one SrAl2Si6O19 framework. In the SrAl2Si6O19 framework, Sr is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Sr–O bond distances ranging from 2.52–3.19 Å. Al is bonded to four O atoms to form AlO4 tetrahedra that share corners with four SiO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.72–1.80 Å. There are three inequivalent Si sites. In the first Si site, Si is bonded to four O atoms to form SiO4 tetrahedra that share a cornercorner with one AlO4 tetrahedra and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.60–1.65 Å. In the second Si site, Si is bonded to four O atoms to form SiO4 tetrahedra that share corners with two equivalent AlO4 tetrahedra and corners with two SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.65 Å. In the third Si site, Si is bonded to four O atoms to form SiO4 tetrahedra that share a cornercorner with one AlO4 tetrahedra and corners with three SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.66 Å. There are twelve inequivalent O sites. In the first O site, O is bonded in a distorted bent 150 degrees geometry to one Sr, one Al, and one Si atom. In the second O site, O is bonded in a single-bond geometry to one Sr atom. In the third O site, O is bonded in a bent 150 degrees geometry to two Si atoms. In the fourth O site, O is bonded in a bent 150 degrees geometry to two Si atoms. In the fifth O site, O is bonded in a linear geometry to two equivalent Si atoms. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Sr and two equivalent Si atoms. In the seventh O site, O is bonded in a 3-coordinate geometry to one Sr, one Al, and one Si atom. In the eighth O site, O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.23 Å. In the ninth O site, O is bonded in a bent 150 degrees geometry to one Al and one Si atom. In the tenth O site, O is bonded in a bent 150 degrees geometry to one Sr and one O atom. In the eleventh O site, O is bonded in a bent 150 degrees geometry to one Al and one Si atom. In the twelfth O site, O is bonded in a bent 150 degrees geometry to two Si atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BiC3O10 by Materials Project

(C3BiO7)2(O2)3 crystallizes in the triclinic P1 space group. The structure is three-dimensional and consists of six hydrogen peroxide molecules and one C3BiO7 framework. In the C3BiO7 framework, there are twelve inequivalent C sites. In the first C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. In the second C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.25 Å) and one longer (1.28 Å) C–O bond length. In the third C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.25 Å) and one longer (1.29 Å) C–O bond length. In the fourth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.25 Å) and one longer (1.29 Å) C–O bond length. In the fifth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the sixth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. Both C–O bond lengths are 1.27 Å. In the seventh C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the eighth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the ninth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.25 Å) and one longer (1.28 Å) C–O bond length. In the tenth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. In the eleventh C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. In the twelfth C site, C is bonded in a distorted bent 120 degrees geometry to two O atoms. There is one shorter (1.26 Å) and one longer (1.27 Å) C–O bond length. There are four inequivalent Bi sites. In the first Bi site, Bi is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Bi–O bond distances ranging from 2.27–2.77 Å. In the second Bi site, Bi is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Bi–O bond distances ranging from 2.26–2.79 Å. In the third Bi site, Bi is bonded in a 9-coordinate geometry to nine O atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.78 Å. In the fourth Bi site, Bi is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Bi–O bond distances ranging from 2.29–2.76 Å. There are twenty-eight inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the second O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the third O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the fourth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the fifth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the sixth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the seventh O site, O is bonded in a distorted single-bond geometry to one C and two Bi atoms. In the eighth O site, O is bonded in a distorted single-bond geometry to one C and two Bi atoms. In the ninth O site, O is bonded in a single-bond geometry to one Bi atom. In the tenth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the eleventh O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the twelfth O site, O is bonded in a distorted bent 120 degrees geometry to one Bi and one O atom. The O–O bond length is 1.31 Å. In the thirteenth O site, O is bonded in a bent 120 degrees geometry to two O atoms. The O–O bond length is 1.28 Å. In the fourteenth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the fifteenth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the sixteenth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the seventeenth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the eighteenth O site, O is bonded in a single-bond geometry to one C and one Bi atom. In the nineteenth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the twentieth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the twenty-first O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the twenty-second O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the twenty-third O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the twenty-fourth O site, O is bonded in a distorted single-bond geometry to one C and one Bi atom. In the twenty-fifth O site, O is bonded in a distorted bent 120 degrees geometry to one C and one Bi atom. In the twenty-sixth O site, O is bonded in a distorted single-bond geometry to one C and two Bi atoms. In the twenty-seventh O site, O is bonded in a distorted single-bond geometry to one C and two Bi atoms. In the twenty-eighth O site, O is bonded in a single-bond geometry to one O atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on O2 by Materials Project

O2 is Cubic alpha N2-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is zero-dimensional and consists of two hydrogen peroxide molecules. O is bonded in a single-bond geometry to one O atom. The O–O bond length is 1.23 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Conversion of Uranium Metal to Uranyl Sulfate Solution

Experiments involving conversion of uranium (U) metal to U 3 O 8 , followed by dissolution to form uranyl sulfate solution, were performed with batches of up to 300 g of U metal. The focus was to identify major U species formed during the oxidation process, determine the particle size distribution of the uranium oxide product, and identify the size of the dissolution vessel needed to accommodate the exothermic reaction during the conversion of U 3 O 8 to uranyl sulfate using 30% hydrogen peroxide and H 2 SO 4 . The information obtained in this study will be used for designing full-scale processes to convert kilogram quantities of U metal to uranyl sulfate solution with a concentration of 300 g U/L.

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEA↗
DOE OSTI2020

Quantitative Determination of Total Cesium in Savannah River Site (SRS) Tank Waste by Inductively Coupled Plasma Emission Spectroscropy

Utilization of the significant and unique wavelength dynamic range (165 to 1100 nm) available on the Leeman Prodigy Inductively Coupled Plasma Emission Spectroscopy (ICP-ES) allows for quantification of cesium using the emission line 894.347 nm without the potential of Barium interference in nuclear waste samples. Samples are added to a Sodium Peroxide Fusion and Lithium Carbonate buffer in 2% nitric acid solution to increase sensitivity of the easily ionizable (<6 eV) cesium for quantitation to 5 pbb. Through direct comparison of analytical data results, the method is proven to be complementary to the Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis (LOQ 100 ppt) in support of the Department of Energy’s (DOE) Nuclear Waste Mission.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2020

Dissolution of Additively Manufactured Mo Disks and Structures for Accelerator Based Production of Mo-99

The press-and-sinter approach for production of Mo targets has been successfully tested and demonstrated. The main advantage of this process is that it uses readily available technology and tools that have been tuned for production of various metal and metal oxide targets. However, certain target design specifications, such as dimensional accuracy of the diameter and thickness of the disks, are required for proper fit into a target holder and therefore place strict tolerances on sintered Mo disks intended for accelerator production. Furthermore, having a target composed of multiple disks poses certain challenges for post-irradiation processing, where there is a potential for spillage of individual disks during the manipulation for dissolution inside a processing hot cell. Additive manufacturing (AM), also referred to as 3D printing, provides capabilities to design and build a single-piece Mo target that provides the opportunity for better geometry for optimized production of Mo-99, improved cooling capability, and safer post-irradiation handling. A drawback of AM Mo structures is roughness of finished surfaces, which could reduce the effectiveness of gas cooling systems. Process development for AM Mo structures using selective laser melting is described in work by Gibson and Lowden. For post-irradiation processing, it is important to look at the dissolution behavior of AM Mo structures in comparison to readily dissolved press-and-sinter Mo targets. The dissolution behavior of press-and-sinter targets has been well documented in our previous reports. In this report, we discuss results of dissolution experiments conducted with AM Mo disks and structures (provided by Oak Ridge National Laboratory [ORNL]) in 50% hydrogen peroxide (H 2 O 2 ).

36 MATERIALS SCIENCE↗
DOE OSTI2020

Ice Nucleating Particles, Aerosols and Clouds over the Higher Latitude Southern Ocean

Improved understanding of aerosol-cloud-precipitation interactions is a key goal of the DOE-ASR program. Ice Nucleating Particles (INPs) are rare aerosol particles that trigger ice formation in clouds. By doing so they may initiate precipitation in clouds, and this impacts cloud lifetime. Nowhere may the role of INPs be manifested so dramatically as in the Southern Ocean (SO). This vast region was the focus of the DOE-ARM MARCUS (Measurement of Aerosols, Radiation and CloUds over the Southern Oceans) and MICRE (Macquarie Island Cloud and Radiation Experiment) campaigns. In the SO, a deficit of INPs has been a leading hypothesis for why liquid clouds persist, which underlays the bias of global climate models in predicting excess shortwave radiation reaching the ocean surface between 55°S and Antarctica. In this study, we used the 6-month acquisition of INP data on four MARCUS cruises from Hobart, Tasmania, to Antarctica, and the single-location full annual INP cycle observed in MICRE, to gain a holistic, quantitative picture of the INP number concentrations as a function of temperature and their variability over SO latitudes from 43°S to Antarctica. Augmenting initial processing of filter collections of aerosol particles during MARCUS and MICRE, additional freezing studies following thermal treatment (to removes INPs associated with microbes) and peroxide treatment (to remove all organics), as well as ionic chemistry and total organic carbon analysis, were applied to samples to improve time and space resolution, and differentiate marine from terrestrial contributions. We also performed Next Generation Sequencing to determine that bacterial composition can tag periods of enhanced and degraded marine organic INPs and the relative lack of occurrence of land-sourced bio-particles. Through these and other analyses, INP data were categorized into representative source types (e.g., marine versus terrestrially-influenced). The products of our analyses are being used to parameterize ice formation for use in numerical modeling studies to determine if, and when, ocean-derived INPs control the microphysical composition and radiative balance of SO clouds in a manner not presently captured by global models. The specific objectives and approaches proposed were largely accomplished, including: 1) Additional and value-added chemical and biological analyses of archived samples of aerosols were completed to categorize and quantify INP types and concentrations over the SO. 2) Analyses were completed to place INP data in meteorological and aerosol context. 3) Sea spray aerosol INPs were demonstrated to dominate the SO region in all but episodic events. 4) New parameterizations for INP sources relevant to the SO were constructed. 5) Collaborative modeling studies demonstrating the crucial role of INPs in determining cloud radiative and precipitation properties were conducted with MARCUS and MICRE partners. Collaborative publication submissions in this regard ensued within the two year study. This work will advance the science of interactions of aerosols, clouds and precipitation, to improve their representation in regional and global climate models. Results have informed representation of primary ice crystal nucleation, give inference to the role of secondary processes, and improve investigations of aerosol influences on clouds via ice nucleation over SO high latitudes and similar vast ocean regions. Application will improve representation of such interactions for clouds in both regional and global climate models. The data base and analyses methods applied will continue to serve research studies in the future.

58 GEOSCIENCES↗
DOE OSTI2021

Molybdenum Recovery from Filters Used in Large-scale Dissolution of Sintered Mo-disks

99 Mo production with linear accelerators can be achieved via the bremsstrahlung photonuclear reaction 100 Mo(γ,n) 99 Mo or the neutron capture reaction 98 Mo(n,γ) 99 Mo. For commercial producers, maximum recovery of enriched 98 Mo and 100 Mo target material is critical for sustaining an economic production cycle. During the peroxide dissolution of Mo metal disks and subsequent conversion to K 2 MoO 4 , several grams of Mo can be lost during filtration from solution when several hundred grams of sintered Mo disks are processed. This investigation shows that 5–8 g Mo is routinely retained on the filter units, but it can be almost fully recovered using aqueous washes. Washing can be done immediately and incorporated into the dissolution procedure, or it can occur several months after the initial filtration process to decrease processing time.

07 ISOTOPE AND RADIATION SOURCES↗
DOE OSTI2021

Evaluation of Ammonium and Iodine Decontamination Factors for Hanford's Waste Treatment and Immobilization Plant Feed in the Effluent Treatment Facility

Savannah River National Laboratory (SRNL) reviewed the unit operations in the Effluent Treatment Facility (FTP) at the Hanford site to estimate the partitioning of iodine and ammonia when processing Waste Treatments and Immobilization Plant (WTP) feed. The evaluation consisted of literature and vendor data reviews and no experiments were performed. A list of the unit operations reviewed, along with estimated decontamination factors (DFs) for both iodine and ammonium are shown in the table below. With the exception of the Peroxide Decomposer, reasonable estimations of the decontamination factors for all operations are provided.

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗
DOE OSTI2021

Corrosion of 347 stainless steel in the presence of uranyl sulfate solution and radiation

The U.S. molybdenum 99 (Mo-99) industry is pursuing production of fission-made Mo-99 using a uranium solution such as uranyl sulfate. In this process, uranyl sulfate solution containing low-enriched uranium will be bombarded by neutrons creating Mo-99 and other fission products. During the production, the uranyl sulfate solution will be irradiated until an acceptable activity level of Mo-99 is produced. The uranyl sulfate solution containing Mo-99 and other fission products will then undergo a series of separation steps. First, uranyl sulfate can be separated from Mo-99 using a primary titania column to recover Mo-99, with the uranyl sulfate solution to be used for another irradiation cycle. Then, raffinate from a primary titania column containing Mo-99 can be concentrated and purified using a LEU modified Cintichem process developed by Argonne National Laboratory. During irradiation, the temperature of the uranyl sulfate solution can reach near boiling (up to ~80° C assumed), causing radiolysis of water and the resultant formation of hydrogen peroxide. Because high-radiation fields will be present during each irradiation cycle, it is important to determine the corrosion rates of SS-347 under such conditions to estimate the life cycle of the target solution vessel. The buildup of corrosion products from the SS components in the uranyl sulfate solution also needs to be well understood because potential accumulation of iron, nickel, and other corrosion products may affect the Mo-99 recovery and purification process. To study the corrosion rates of SS-347 material under conditions relevant to future Mo-99 production facility, SS-347 coupons in uranyl sulfate solution at ~80° C were irradiated using Argonne’s Van de Graaff generator, which can generate high-radiation fields without fissioning of uranium or production of activation products.

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗