Results 11 to 20 of about 38,094 (268)

eHydrogenation: Hydrogen‐free Electrochemical Hydrogenation

open access: yesAngewandte Chemie International Edition, 2023
AbstractHydrogenation reactions are staple transformations commonly used across scientific fields to synthesise pharmaceuticals, natural products, and various functional materials. However, the vast majority of these reactions require the use of a toxic and costly catalyst leading to unpractical, hazardous and often functionally limited conditions ...
Camilla Russo   +13 more
openaire   +5 more sources

Metallic hydrogen [PDF]

open access: yesJournal of Physics: Condensed Matter, 2018
Abstract Hydrogen is the simplest and most abundant element in the Universe. There are two pathways for creating metallic hydrogen under high pressures. Over 80 years ago Wigner and Huntington predicted that if solid molecular hydrogen was sufficiently compressed in the T   =
Ranga Dias, Isaac Silvera
openaire   +2 more sources

Ionization of Hydrogen and Hydrogenic Ions by Antiprotons [PDF]

open access: yesPhysical Review Letters, 1996
Presented here is a description of the ionization of hydrogen and hydrogenic ions by antiproton-impact, based on very large scale numerical solutions of the time-dependent Schrödinger equation in three spatial dimensions and on analysis of the topology of the electronic eigenenergy surfaces in the plane of complex internuclear distance.
Schultz, D. R.   +3 more
openaire   +3 more sources

Hydrogen [PDF]

open access: yesMaterials, 2011
The idea of a “Hydrogen Economy” is that carbon containing fuels should be replaced by hydrogen, thus eliminating air pollution and growth of CO2 in the atmosphere. However, storage of a gas, its transport and reconversion to electricity doubles the cost of H2 from the electrolyzer.
openaire   +2 more sources

An Operando Nuclear Magnetic Resonance Study on Solid-Liquid-Gas Heterogeneous Benzene Hydrogenation Reaction

open access: yesChinese Journal of Magnetic Resonance, 2021
The reaction of heterogeneous benzene hydrogenation reaction in a real solid-liquid-gas environment was studied by operando nuclear magnetic resonance (NMR) spectroscopy.
Song SUI   +4 more
doaj   +1 more source

Hydrogenation of styrene-isoprene-styrene block copolymer and its product properties

open access: yesHecheng xiangjiao gongye, 2021
The hydrogenation of styrene-isoprene-styrene block copolymer(SIS) was catalyzed by nickel-based catalyst, and the mechanism of catalytic reaction was studied.
LIANG Ai-min
doaj   +1 more source

Preparation of sub-microspherical Fe3O4@PDA-Pd NPs catalyst and application in catalytic hydroreduction reaction of halogenated aromatic nitro compounds to prepare halogenated aromatic amines

open access: yesBMC Chemistry, 2019
Background The side reactions of dehalogenation or C–N coupling tend to occur when halogenated aromatic amines are prepared by catalytic hydrogenation reduction of halogenated aromatic nitro compounds.
Haichang Guo   +4 more
doaj   +1 more source

Hydrogen microstructure in hydrogenated amorphous silicon [PDF]

open access: yesPhysical Review B, 1996
We present a method to determine the local hydrogen bonding structure in hydrogenated amorphous silicon from infrared spectroscopy measurements. This approach is based on a different oscillator strength and refractive index for hydrogen atoms located in the isolated and clustered phase.
Daey Ouwens, J., Schropp, R.E.I.
openaire   +4 more sources

Preparation of Large-Size, Superparamagnetic, and Highly Magnetic Fe3O4@PDA Core–Shell Submicrosphere-Supported Nano-Palladium Catalyst and Its Application to Aldehyde Preparation through Oxidative Dehydrogenation of Benzyl Alcohols

open access: yesMolecules, 2019
Large-size, superparamagnetic, and highly magnetic Fe3O4@PDA core−shell submicrosphere-supported nano-palladium catalysts were prepared in this study.
Haichang Guo   +4 more
doaj   +1 more source

CATALYTIC HYDROGENATION AND THE POTENTIAL OF THE HYDROGEN ELECTRODE [PDF]

open access: yesJournal of the American Chemical Society, 1922
n ...
Conant, James B., Cutter, Harold B.
openaire   +2 more sources

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