【摘要】 本文用气体电量计法分解极化曲线研究了光滑铂电极上Ｏ２和Ｃ２Ｏ６２－离子的阳极形成动力学。实验结果表明：Ｏ２和Ｃ２Ｏ６２－的阳极极化曲线的Ｔａｆｅｌ斜率接近于２．３０３ＲＴ／βＦ（β≈０．４１～０．６４）。Ｏ２和Ｃ２Ｏ６２－形成反应相对于ＣＯ３２－的反应级数分别介于１．０９～１．４７和１．０６～１．９。它们的表现反应级数随电极电位增加而降低。证明在铂电极上Ｏ２和Ｃ２Ｏ６２－的阳极形成均是通过ＣＯ３２－的直接放电。更多还原

【Abstract】 The Kinetic related respectively C2O62- anodic formation and O2 anodic evolution at Pt anode in Na2CO3 and K2CO2 solutions were obtained by method of resolving the steady-state polarization curve. Steady-state ψ～lgi relationships for C2O62- anodic formation and O2 anodic evolution reaction Tafel slope are close to 2. 303 RT/βF(with β=0. 5).It is shown by experiment that the anodic formation of C2O62- and O2 anodic evolution at Pt anode in carbonate solutions are described by the equation:The experimentai results may be explained by adopting the following scheme of electrode reactionswhere M is an adsorption site on Pt-oxide.更多还原