1999 polarization, electrode processes, photoelectrochemistry

polarization, electrode processes, photoelectrochemistryF 5000

19 - 022Electroreduction of Nitrate to Ammonia in Alkaline Solutions UsingHydrogen Storage Alloy Cathodes. — The current efficiency in NH3

production on hydrogen storage alloy electrodes is influenced by a series offactors. The electrolysis on the fully hydrided electrode in the 0.5 M KOH +0.05 M KNO3 solution produces NH3 with a current efficiency of 90% at -1.2 Vvs. SCE. It is found that the dissolved H2 in the alloy electrode can directlyparticipate in the reduction process and enhance the catalytic activity of theelectrode. — (LU, CHUN; LU, SHIGANG; QIU, WEIHUA; LIU, QINGGUO;Electrochim. Acta 44 (1999) 13, 2193-2197; Dep. Phys. Chem., Univ. Sci.Technol., Beijing 100083, Peop. Rep. China; EN)

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