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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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Lignin Depolymerisation by Nickel Supported Layered-Double Hydroxide Catalysts
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Vapor phase hydrodeoxygenation of furfural to 2-methylfuran on molybdenum carbide catalysts
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Hydrophobic microporous and mesoporous oxides as Brønsted and Lewis acid catalysts for biomass conversion in liquid water
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Rational design of MoS 2 catalysts: tuning the structure and activity via transition metal doping
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Enhanced stability of cobalt catalysts by atomic layer deposition for aqueous-phase reactions
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Single catalyst electrocatalytic reduction of CO2 in water to H2+CO syngas mixtures with water oxidation to O2
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Synthesis and photophysical characterization of porphyrin and porphyrin–Ru(ii) polypyridyl chromophore–catalyst assemblies on mesoporous metal oxides
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Core-Level Spectroscopic Investigation of the Preparation and Electrochemical Cycling of Nitrogen-Modified Carbon as a Model Catalyst Support
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Detection of a transient Fe V (O)(OH) species involved in olefin oxidation by a bio-inspired non-haem iron catalyst
Here we provide direct evidence for the formation of an Fe V (O)(OH) species in non-haem iron catalysis using ambient mass spectrometry.
Oligomerization of ethanol-derived propene and isobutene mixtures to transportation fuels: catalyst and process considerations
An important activity/selectivity trade-off occurs at increased olefin oligomerization temperatures. Jet-range product decreases and paraffin formation increases at high oligomerization temperatures.
From a Au-rich core/PtNi-rich shell to a Ni-rich core/PtAu-rich shell: an effective thermochemical pathway to nanoengineering catalysts for fuel cells
A major challenge for the design of noble metal nanocatalysts is the ability of surface engineering to enhance the activity and stability with minimum use of the noble metals.
Glucose isomerization in dioxane/water with Sn-β catalyst: improved catalyst stability and use for HMF production
The stability of zeolite Sn-beta (Sn-β) was greatly improved for glucose isomerization to fructose and fructose yield of 41.5% has been obtained when dioxane/water was used as solvent. The effect of dioxane/water solvent mixtures for fructose dehydration on Amberlyst-131 was also studied and it was found that small amounts of water in dioxane increase the yield of HMF (up to 74%) by limiting the formation of oligomers like difructose anhydride (III). 56% yield of HMF from glucose, maltose, trehalose or cellobiose and 60% from sucrose were produced when hydrolysis of disaccharides, glucose isomerization and fructose dehydration were coupled in a mixture of dioxane/water (5 wt%).
Enhancing Electrocatalysis for Hydrogen Production over CoP Catalyst by Strain: A Density Functional Theory Study
The facet-dependent strain effects on the hydrogen evolution reaction catalyzed by CoP were studied using density functional theory methods. We show that both atomic and electronic effects need to be taken into consideration to understand the strain effects. For the (111) surface, tensile strain promotes hydrogen evolution at all the levels of hydrogen coverage. For the (101) surface, a moderate tensile strain of ~3% endows this facet with optimum performance.
Thermodynamic targeting of electrocatalytic CO 2 reduction: advantages, limitations, and insights for catalyst design
Herein is reported the electrocatalytic reduction of CO 2 with the complex [Ni(bis-NHC)(dmpe)] 2+ ( 1 ) (bis-NHC = 1,l′:3,3′-bis(1,3-propanediyl)dibenzimidazolin-2,2′-diylidene; dmpe = 1,2-bis(dimethylphosphino)ethane).
Catalytic dehydration of levoglucosan to levoglucosenone using Brønsted solid acid catalysts in tetrahydrofuran
We explored the production of levoglucosenone from levoglucosan using propylsulfonic acid functionalized silica; 59% selectivity was obtained at 100% conversion.
Transformation of gels via catalyst-free selective RAFT photoactivation
This work explores the concept of structurally tailored and engineered macromolecular (STEM) networks by proposing a novel metal-free approach to prepare the networks.
Characterization of flame synthesized Pd–TiO 2 nanocomposite catalysts for oxygen removal from CO 2 -rich streams in oxy combustion exhausts
Metallic Pd and/or reduced Pd oxide on Pd–TiO 2 is found to be the intrinsic active site for O 2 removal.