Oxygen reduction on teflon-bonded carbon electrode
来源期刊：中国有色金属学报(英文版)2004年第4期
论文作者：周德璧 黄可龙 张世民
文章页码：817 - 823
Key words：oxygen reduction; gas diffusion electrode; acimpedance; chronopotentiometry
Abstract: Oxygen reduction on Teflon-bonded carbon gas diffusion electrode without catalyst in 6 mol/L KOH solution was investigated with acimpedance spectroscopy and other electrochemical techniques. The kinetic parameters were measured with an exchange current density of J0=3.44×10-9and a Tafel slope of 46 mV/dec in low overpotential range (-0.05- -0.14 V vs SCE), which are comparable with those reported on carbon supported platinum electrode. The reaction mechanism of OR and the active effect of carbon black were examined.
