No abstract

No abstract

A Pt/GC model catalyst electrode, prepared by vacuum evaporation of Pt onto a flat surface of a glassy carbon support, is used to examine the size effects of small Pt particles on the electrocatalytic oxidation of the adsorbed hydrogen and on the hydrogen electrode reaction in an aqueous solution of sulfuric acid.

No abstract

Electrocatalytic Properties of Ultrafine Gold Particles Supported Onto Glassy Carbon Substrates Toward Formaldehyde Oxidation in Alkaline Media. -Highly dispersed, ultrafine gold particles are deposited on glassy carbon substrates by a vacuum evaporation technique. In alkaline solution (pH 10, NaOH), the catalytic activity of the Au/glassy carbon electrodes for the oxidation of HCHO is comparable with that of bulk Au electrodes. A maximum electrocatalytic activity, which is higher than that of bulk Au, is observed for the Au/glassy carbon electrodes at intermediate Au loading (2·1015-3·1015 Au atoms/cm2). -(YAHIKOZAWA, K.; NISHIMURA, K.; KUMAZAWA, M.; TATEISHI, N.; TAKASU, Y.; YASUDA, K.; MATSUDA, Y.; Electrochim. Acta 37 (1992) 3, 453-455; Dep. Fine Mater Eng., Fac. Text.