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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.
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Designing Ionic Liquid-Derived Polymer Composites from Poly(Ionic Liquid)–Ionene Semi-interpenetrating Networks
Not provided.
Selective Conversion of Carbon Dioxide into Liquid Hydrocarbons and Long-Chain α-Olefins over Fe-Amorphous AlOx Bifunctional Catalysts
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Computer Simulations Show That Liquid–Liquid Phase Separation Enhances Self-Assembly
Not provided.
Viscosity and liquid–liquid phase separation in healthy and stressed plant SOA
Molecular composition, viscosity, and phase state were investigated for secondary organic aerosol derived from synthetic mixtures of volatile organic compounds representing emissions from healthy and aphid-stressed Scots pine trees.
Role of liquid-liquid phase separation-induced surface tension changes in cloud droplet activation
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Nuclear matter as a liquid phase of spontaneously broken semiclassical SU ( 2 ) L × SU ( 2 ) R chiral perturbation theory: Static chiral nucleon liquids
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Effective field theory interactions for liquid argon target in DarkSide-50 experiment
We reanalize data collected with the DarkSide-50 experiment and recently used to set limits on the spin-independent interaction rate of weakly interacting massive particles (WIMPs) on argon nuclei with an effective field theory framework. The dataset corresponds to a total (16660 ± 270) kg d exposure using a target of low-radioactivity argon extracted from underground sources. We obtain upper limits on the effective couplings of the 12 leading operators in the nonrelativistic systematic expansion. For each effective coupling we set constraints on WIMP-nucleon cross sections, setting upper limits between 2.4×10-45 cm2 and 2.3×10-42 cm2 (8.9 ×10-45 cm2 and 6.0 ×10-42 cm2) for WIMPs of mass of 100 GeV/c2 (1000 GeV/c2) at 90% confidence level.
Na + -gated water-conducting nanochannels for boosting CO 2 conversion to liquid fuels
Robust, gas-impeding water-conduction nanochannels that can sieve water from small gas molecules such as hydrogen (H 2 ), particularly at high temperature and pressure, are desirable for boosting many important reactions severely restricted by water (the major by-product) both thermodynamically and kinetically. Identifying and constructing such nanochannels into large-area separation membranes without introducing extra defects is challenging. We found that sodium ion (Na + )–gated water-conduction nanochannels could be created by assembling NaA zeolite crystals into a continuous, defect-free separation membrane through a rationally designed method. Highly efficient in situ water removal through water-conduction nanochannels led to a substantial increase in carbon dioxide (CO 2 ) conversion and methanol yield in CO 2 hydrogenation for methanol production.
Xenon Gas and Liquid Phase Concentrations with/without Off-System in the Iodine Liquid of the MSRE Loop
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Investigating the liquid-liquid, insulator-to-metal transition in hydrogen and deuterium
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Investigating the liquid-liquid, insulator-to-metal transition in hydrogen and deuterium
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Use of Novel Diglycolamide Extractants in Liquid-liquid Separations of Light Rare Earths
Creation of a novel extractant that can improve rare earth separations both economically and environmentally will be pivotal for industry progression. Diglycolamide (DGA) extractants provide chemistries that support this goal by serving as an extractant with high affinity for lanthanides and improved separation factors for light rare earths as compared to current extractants like PC88A. Initial organic phase loading capacity and phase dispersion tests performed with various modified DGAs generated results that were unfavorable for industrial processing, but further modification of the DGA alkyl chain substituents have resulted in new structures with promising results. Dispersion time measurements taken in small scale batch contacts of the extractant with a simulated leach liquor containing La, Ce, Nd, and Pr support implementation in both mixer-settlers and centrifugal contactors for larger scale separations. Furthermore, this confirmation allowed for preliminary flowsheet design using extraction equilibria at various organic to aqueous flow ratios (O/A) for extraction, scrubbing, and stripping stages. These values along with expected product/effluent compositions for each section aid in the testing for specific distribution ratios and final flowsheet design. Implementation of the DGA extractant into solvent extraction equipment will provide essential information for the next steps of this project and how this extractant may be optimized for future applications.
Novel Diglycolamide Extractant?s Performance in Liquid-Liquid Separations for Pilot Scale Application
Modified diglycolamide (DGA) extractants show high affinity for light lanthanides and improved separation factors compared to phosphonic acids used commercially. Previous studies with DGAs included flowsheet design and implementation into solvent extraction equipment but with low extractant concentration. Modifications on the alkyl chains of previous DGA extractants led to a competitive product for light rare earth separation with a higher extractant concentration. The scope of this project is to test a recently developed DGA extractant for application in pilot scale solvent extraction equipment with single stage testing, by narrowing down scrubbing conditions, and collecting distribution values for flowsheet planning.
Simulations of Liquid Spray due to Hydrodynamic Ram on Thin-walled Liquid-filled Containers.
Abstract not provided.