The palladium surface is dominated by hydrogen for [alpha]>[alpha]max and is hydrogen deficient for [alpha]<[alpha]max. This is consistent with a rate limiting step for the water forming reaction where adsorbed hydrogen is one of the reactants. It is also concluded that the heat of ...
This assignment differs from that previously given from an infrared study of hydrogen adsorbed on palladium hydride.doi:10.1016/0009-2614(78)80234-6Joseph HowardThomas C. WaddingtonChristopher J. WrightElsevier B.V.Chemical Physics LettersHoward, J, Waddington, TC, Wright, CJ (1978) Chem. Phys....
hydrogen adsorption grapheneWe have performed density functional theory (DFT)-based first-principles calculations to study the stability, geometrical structures, and electronic properties of a single palladium (Pd) atom adsorbed graphene with reference to pristine graphene. The study also covers the ...
palladiumThe interaction of H2 and O2 molecules in the presence of nitrogen-doped graphene decorated with either a palladium or gold atom was investigated by using density functional theory. It was found that two hydrogen molecules were adsorbed on the palladium atom. The interaction of these ...
While this behavior has been described multiple times on diferent Pd- electrocatalysts, previous studies disagree with regard to palladium's ability to form a hydride phase (PdHx) under CO2 reduction reaction (CO2RR) conditions, as well as on the infuence of this PdHx on its CO2RR-selectivity...
One of the most studied dopants is palladium. Dissociation of the hydrogen molecules and spillover of the H atoms towards the carbon substrate has been advocated as the reason for the enhancement of the storage capacity. We have investigated this mechanism by performing ab initio density functional...
Electrochemical deposition of palladium on an Au(111) electrode: effects of adsorbed hydrogen for a growth mode[J] . Hideo Naohara,Shen Ye,Kohei Uosaki.Colloids and Surfaces A: Physicochemical and Engineering Aspects . 1999 (1)NAOHARA H, YE S, UOSAKI K. Electrochemical deposition of ...
Hydrogen absorptionOxidation kineticsPalladiumPoison effectAdsorption and electrooxidation of carbon monoxide on palladium (50 nm deposit, 50 μm foil and membrane) in 0.1 M H 2SO 4 have been examined using potentiostatic current transients, cyclic voltammetry and ac impedance measurements. During CO ...
Influence of adsorbed carbon dioxide on hydrogen electrosorption in palladium-platinum-rhodium alloys. Electrochim. Acta 2004, 49, 3161-3167.Lukaszewski M,Grden M,Czerwinski A.Influence of adsorbed carbon dioxide on hydrogen electrosorption in palladium–platinum–rhodium alloys.Sensors and Actuators. ...
The effect of carbon or sulphur on the permeation rate of molecular hydrogen through palladium was examined. For the experiments performed (upstream H 2 pressures of ~10 5 to 300 Pa and temperatures in the range 355–630 K) the permeation rates varied by a factor of ~10 4. An incident ...