hydrogen desorption
Kinetics of Hydrogen Desorption from Rapidly Solidified Al Cr Alloys
... on hydrogen desorption kinetics from aluminium ...H desorption rate peaks in the thermal desorption spectra are identified for Al-Cr ...of hydrogen trapped at Cr atoms in lattice sites ...
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Surface and Particle Size Effects on Hydrogen Desorption from Catalyst Doped MgH2
... on-board hydrogen storage; 1−3 the targets correspond to a hydrogen- desorption enthalpy of ∼ 30 kJ/(mol H 2 ) and a hydrogen recharging time of under 5 ...a desorption enthalpy of 76 ...
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Hydrogen desorption study of as-synthesized carbon nanotubes using artificial neural network
... Reports suggest that the total surface area of carbon affects the hydrogen storage capacities in carbon nanotubes Based on the experimental data of as-synthesized carbon nanotubes, [r] ...
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Nonlinear dynamical boundary value problem of hydrogen thermal desorption
... In this paper, a widely used experimental method of thermodesorption spec- trometry will be considered (TDS) [4, 5]. Here is its brief description: a plate from studied material is placed under hydrogen pressure. ...
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First Principles Investigation of Energetics and Electronic Structures of Ni and Sc Co Doped MgH2
... The hydrogen desorption enthalpies of these three systems were also ...lower hydrogen desorption enthalpies, the co-doped systems possess more promising dehydrogenation properties compared ...
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Synthesis and Hydrogen Storage Behaviour of Pure Mg2FeH6 at Nanoscale
... measuring hydrogen content versus time by recording the change of gas pressure in a constant volume, was used to obtain the hydrogen absorption/desorption kinetics curves and pressure-composition ...
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Hydrogen Dissolution into 10% Chromium Ferritic Steels during High Temperature Steam Oxidation
... the hydrogen desorption profiles obtained from two kinds of specimens being the steel ...maximum hydrogen desorption rate was observed near 600 K in both ...
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Hydrogen Absorption and Desorption Behavior of Magnesium Hydride: Incubation Period and Reaction Mechanism
... The hydrogen desorption data plotted using the KJMA ...the hydrogen absorption are shown in ...the hydrogen absorption process, (2) the plot have a similar tendency for the reaction ...The ...
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Automated extraction of single H atoms with STM: tip state dependency
... single hydrogen atoms from the H:Si ( 100 ) ...of desorption events during scanning tunneling microscope ( STM ) -induced modi fi cation of the hydrogen-passivated ...for hydrogen removal was ...
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Hydrogen Storage in Mg and Mg Based Alloys and Composites Processed by Severe Plastic Deformation
... attractive hydrogen storage properties for Mg and its alloys, especially enhanced activation ...H-absorption/ desorption kinetics with elevated ...the hydrogen storage ...
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Mechanism Analysis on Stress Accumulation in Cylindrical Vertical Placed Metal Hydride Reactor
... rise up acutely with the increase of localized relative den- sity, depth of reactor and cycle number et al. [4-6]. As a conclusion, the pulverization-densification mechanism is proposed and widely accepted: during the ...
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Desorption Behaviours of Lithium Alanate with Metal Oxide Nanopowder Additives
... Solid-state hydrogen storage can be divided into two main ...bound hydrogen, where the hydrogen gas is physisorbed to a high surface area substrate (exterior or interior) such as carbon nanotubes ...
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A Comparative Assessment of Hydrogen Embrittlement: Palladium and Palladium Silver (25 Weight% Silver) Subjected to Hydrogen Absorption/Desorption Cycling
... of hydrogen embrittlement on metallic systems have been investigated through determination of the mechanical properties of two metallic systems that were exposed to ...of hydrogen ...
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Grain Size Refinements of Au Mg Alloy by Hydrogen Absorption/Desorption Treatments
... with hydrogen such as Mg, although the alloys are mostly consist of the elements with poor affinity for ...for hydrogen, the alloys have possibilities of occurrence of HDDR phenomenon since Au-Mg alloys ...
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Effect of Cu or Ti Substitution in MgNi on Crystal Structure and Hydrogen Absorption Desorption Properties
... of hydrogen. In this study, hydrogen absorption-desorption properties of the MgNi compound with CuTi- type structure were ...desorbed hydrogen reversibly at 473 ...
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Design and Synthesis of New Hydrogen Storage Materials Functioning by Weak Chemisorption
... for hydrogen feed to the ...programmed desorption and inelastic neutron scattering are also required to gain more information about binding enthalpies and the location of individual hydrogens than can be ...
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Phase Transformation, Hydrogen Absorption/Desorption and Electrochemical Properties of a Novel AB4.5-type La0.8Mg0.2Ni4.0Co0.5 Alloy
... The pressure-composition (P-C) curves of both the as-cast and annealed alloys were investigated using a Sievert-type apparatus at temperatures in the range of 40~100 °C. Before measurement, these alloys were put placed ...
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Effect of trifluoromethanesulfonic acid on the ORR activity of Pt in acid medium
... 1-4 are the adsorption/desorption peak of hydrogen. Among them, peak 1 and 4 are strong adsorption/desorption peak (about 0.25-0.4 V vs. RHE) and peak 2 and 3 are weak adsorption/desorption ...
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Development of Fuel Cell by Using the Bucky Paper as an Electrode Material
... The development of fuel cell electrodes technique was studied. The replacement of Carbon Fiber Paper (CFP) by Bucky Paper (BP) give rise to more advantage in the fuel cell industry. The brittle CFP is replaced by ...
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Susceptibility to Hydrogen Absorption and Hydrogen Thermal Desorption of Titanium Alloys Immersed in Neutral Fluoride Solution under Applied Potential
... a hydrogen evolution reaction in the ...the hydrogen evolution reaction is mainly caused by a direct reduction of water, although there is also a reduction of hydrogen ...the hydrogen ...
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