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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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The results establish the adsorption capacity, kinetics, interaction strength of pyridine/indole with sorbents and regeneration, highlighting silica gel's potential as an efficient and cost-effective adsorbent for biofuel nitrogen compounds removal.
The synthesis of Lanthanum Cobalt Oxide (LCO) via Sol-Gel method provides a potentially low-cost method of production for a P-type photocatalytic. LCO was prepped from Lanthanum and Nitrate Precursors in Aqueous solution. After a significant amount of water is evaporated, the solution is deposited onto SiO2 substrate via spin-deposition method. After annealing, the samples produce thin film LCO that display thickness of sub-500 nanometers. The samples material profile is confirmed by both Raman spectroscopy and X-Ray Diffraction spectroscopy (XRD). Additionally, two-point probing tested the conductivity of the samples. The thin film samples display characteristics of a P-type photocatalytic and may potentially be used in the formation of a P-N junction for user in water-splitting applications.
Study of hydrogen slush-hydrogen gel utilization is presented in two volume publication. The first volume contains the physical and thermal property data for hydrogen used in the study. In the second volume, details of the technical effort are presented including parametric analysis of effects on vehicle systems.
Handbook of physical and thermal property data for hydrogen in region between triple point and critical point for study of hydrogen slush and/or hydrogen gel utilization
Surface parameter measurements of stannic oxide in powder, ceramic and gel forms by nitrogen adsorption techniques
Adsorption equilibrium data obtained at high pressure for methane and propane on silica gel using radioactive tracer pulsing
Low angle light scattering diffraction patterns of ionotropic gels, formed by Ca ion diffusion into polygalacturonate solution, indicating organized structures
Slush hydrogen and nitrogen gels for rocket propellants
Dispersion in gel permeation chromatograph, noting contributions of injection and detection systems to peak broadening and retention time
Dispersion in gel permeation chromatography, noting eddy diffusion in chromatographic columns
Molar heat and entropy of adsorption and activity coefficient of adsorbed phase for methane-ethane- silica gel system
Single crystal growth by controlled diffusion in silica gel using metathetical and decomplexation reactions
Gel permeation chromatography of nominally linear aliphatic polyesters, using tetrahydrofuran solvent at 37 degrees C
Calcium phosphate crystals precipitation from nutrient gel to determine role of gelatinous ground substance in calcification
Dispersion /peak broadening/ in gel chromatography measured with nonporous and porous column packings, suggesting diffusion controlled separation with linear permeation isotherm
Gel permeation chromatography peak broadening, discussing liquid dispersion factors and column efficiency
Intermittent type silica gel adsorption refrigerator for providing temperature control for spacecraft components
Coiled section of tubing measures viscous properties of gelled cryogenic propellants under conditions closely resembling flow in rocket engine systems. Characteristic flow curve provides data necessary for the design of prototype hardware systems using the liquid or gel of interest.