Electrocatalytic evolution of hydrogen on a novel SrPdO3 perovskite electrode
By Galal, Ahmed; Atta, Nada F.; Darwish, Soher A.; Fatah, Ahmed Abdel & Ali, Shimaa M.
Published in Journal of Power Sources
NULL
2010
Abstract
SrPdO3 was prepared for the first time by the citrate method. XRD, SEM and TGA characterizations were carried out. The catalytic activity toward hydrogen evolution reaction (HER) was investigated, the activation energy, and reaction order and reaction mechanism have been determined using Tafel polarization and impedance techniques. The modified surface showed up to 100 times more efficiency towards electrocatalytic production of hydrogen. Adsorption of hydrogen on the catalyst was the rate-determining step and the reaction order at the surface of the catalyst is 0.86. The molar magnetic susceptibility was measured using Faraday's method and anti-ferromagnetic character was observed.
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