Results 41 to 50 of about 4,289,500 (393)
µ-CT Investigation of Hydrogen-Induced Cracks and Segregation Effects in Austenitic Stainless Steel
Hydrogen, 2023 Hydrogen can drastically degrade the mechanical properties of a variety of metallic materials. The so-called hydrogen environment embrittlement of austenitic CrNi-type steels is usually accompanied by the formation of secondary surface cracks, which can ...
Gero Egels +3 more
doaj +1 more source
Modeling of Liquid Hydrogen Tank Cooled with Para-Orthohydrogen Conversion
Hydrogen, 2023 With the accelerating development of liquid-hydrogen storage facilities, the problem of boil-off hydrogen losses becomes very important. A promising method to reduce these losses is to utilize the endothermic para-orthohydrogen conversion of vented ...
Konstantin I. Matveev, Jacob W. Leachman
doaj +1 more source
New Journal of Physics, 2020 Abstract Is there any entanglement in the simplest ubiquitous bound system? We study the solutions to the time-independent Schrödinger equation for a hydrogenic system and devise two entanglement tests for free and localised states. For free hydrogenic systems, we compute the Schmidt basis diagonalisation for general energy eigenstates ...
Sofia Qvarfort +2 more
openaire +4 more sources
Hydrogen, 2021 Water electrolysis is a process which converts electricity into hydrogen and is seen as a key technology in enabling a net-zero compatible energy system.
George Bristowe, Andrew Smallbone
doaj +1 more source
Discovery of nanographene for hydrogen storage solving low reversibility issues [PDF]
arXiv, 2022 We found good reversibility of hydrogen uptake-release in vacancy-centered hexagonal armchair nanographene (VANG) based on density functional theory calculation. VANG has a triply hydrogenated vacancy (V$_{111}$) at the center and acts as a self-catalytic property to reduce an activation barrier of hydrogen uptake-release.
arxiv
Energy Science & Engineering, 2021 Hydrogen is often viewed as an important energy carrier in a future decarbonized world. Currently, most hydrogen is produced by steam reforming of methane in natural gas (“gray hydrogen”), with high carbon dioxide emissions.
R. Howarth, M. Jacobson
semanticscholar +1 more source
Hydrogen, 2021 The hydrogen economy is expected to dominate in the nearest future. Therefore, the most hydrogen-containing compounds are considered as potential pure hydrogen sources in order to achieve climate neutrality.
Ekaterina V. Shelepova +1 more
doaj +1 more source
Enhanced hydrogen storage in Ni/Ce composite oxides [PDF]
, 2007 The properties of dried (but not calcined) coprecipitated nickel ceria systems have been investigated in terms of their hydrogen emission characteristics following activation in hydrogen.
Berlouis, Leonard E. A. +7 more
core +1 more source
Hydrogen production from water electrolysis: role of catalysts
Nano Convergence, 2021 As a promising substitute for fossil fuels, hydrogen has emerged as a clean and renewable energy. A key challenge is the efficient production of hydrogen to meet the commercial-scale demand of hydrogen. Water splitting electrolysis is a promising pathway
Shan Wang, Aolin Lu, C. Zhong
semanticscholar +1 more source
The endogenous production of hydrogen sulphide in intrauterine tissues [PDF]
, 2009 Background: Hydrogen sulphide is a gas signalling molecule which is produced endogenously from L-cysteine via the enzymes cystathionine beta-synthase (CBS) and cystathionine gamma-lyase (CSE).
Carson, Ray J. +4 more
core +5 more sources