Results 21 to 30 of about 802,767 (303)

Comparison of Doped Combination Zirconium-tungsten, Zirconium- molybdenum and Molybdenum-tungsten on Single-wall Vanadium Oxide Nanotube in Hydrogen Gas Adsorption [PDF]

open access: yesInternational Journal of New Chemistry, 2017
In this study, doped vanadium oxide nanotubes were evaluated using different software to study the absorption of hydrogen gas. Vanadium oxide nanotubes are one of the options for absorption and storage hydrogen gas.
Azita Salimian   +2 more
doaj   +1 more source

Measuring the Primordial Deuterium Abundance During the Cosmic Dark Ages [PDF]

open access: yes, 2005
We discuss how measurements of fluctuations in the absorption of cosmic microwave background (CMB) photons by neutral gas during the cosmic dark ages, at redshifts z ~ 7--200, could reveal the primordial deuterium abundance of the Universe.
A. Dalgarno   +9 more
core   +2 more sources

The Effect of Magnetic Field on Thermal-Reaction Kinetics of a Paramagnetic Metal Hydride Storage Bed

open access: yesApplied Sciences, 2017
A safe and efficient method for storing hydrogen is solid state storage through a chemical reaction in metal hydrides. A good amount of research has been conducted on hydrogenation properties of metal hydrides and possible methods to improve them ...
Shahin Shafiee   +2 more
doaj   +1 more source

A study of the magnetic properties of LaNi 5-xSix alloys and their hydrides

open access: yesVietnam Journal of Science, Technology and Engineering, 2017
In this work, we study the influence of the substitution Si for Ni for the magnetic properties of LaNi5-xSix (x = 0-0.5) alloys. The structure of the alloy was tested by X-ray diffraction (XRD) measurements.
Nhan Ba Dam   +3 more
doaj   +1 more source

Absorption Spectra of Electrified Hydrogen Molecules

open access: yesThe Astrophysical Journal, 2022
Abstract Molecular hydrogen normally has only weak, quadrupole transitions between its rovibrational states, but in a static electric field it acquires a dipole moment and a set of allowed transitions. Here we use published ab initio calculations of the static electrical response tensors of the H2 molecule to construct the perturbed ...
openaire   +2 more sources

Interaction of Hydrogen with Au Modified by Pd and Rh in View of Electrochemical Applications

open access: yesComputation, 2016
Hydrogen interaction with bimetallic Au(Pd) and Au(Rh) systems are studied with the density functional theory (DFT)-based periodic approach. Several bimetallic configurations with varying concentrations of Pd and Rh atoms in the under layer of a gold ...
Fernanda Juarez   +5 more
doaj   +1 more source

Dynamic modeling and performance analysis of metal hydride hydrogen storage system

open access: yesXibei Gongye Daxue Xuebao, 2023
Metal hydride hydrogen storage has the advantages of high hydrogen storage volume density, high safety, and high hydrogen purity, which can meet the hydrogen storage and supply needs of fuel cells in both mobile and fixed scenarios.
ZHU Dan   +4 more
doaj   +1 more source

Ab-initio molecular dynamics simulation of hydrogen diffusion in $\alpha$-iron [PDF]

open access: yes, 2010
First-principles atomistic molecular dynamics simulation in the micro-canonical and canonical ensembles has been used to study the diffusion of interstitial hydrogen in $\alpha$-iron.
G. Alefeld   +7 more
core   +2 more sources

THE KINETICS OF THE HYDROGEN EVOLUTION REACTION ON NICKEL MONOSILICIDE IN ACIDIC AND ALKALINE SOLUTIONS

open access: yesКонденсированные среды и межфазные границы, 2017
The kinetics of the hydrogen evolution reaction on nickel silicide NiSi (fabricated by Czochralski method) in solutions of 0.5 M H2SO4 and 1 М КОН has been studied by polarization measurements and electrochemical impedance spectroscopy.
Kichigin Vladimir I.   +2 more
doaj   +1 more source

Development of new material for the environmental-friendly energy generation processes [PDF]

open access: yesScience of Sintering, 2011
The aim of this study was to develop a new material which has high hydrogen storage capacity and hydrogen absorption/desorption rate. This material, which is based on cobalt powder onto which palladium was chemically deposited can be used in ...
Ristic S.   +4 more
doaj   +1 more source

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