Electrochemical promotion of ethylene and propylene oxidation on Pt deposited on yttria-titania-zirconia

被引：13

作者：

Beatrice, P

Pliangos, C

Worrell, WL

Vayenas, CG ^{[1
]}

机构：

[1] Univ Patras, Dept Chem Engn, GR-26500 Patras, Greece

[2] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19102 USA

来源：

SOLID STATE IONICS | 2000年 / 136卷

基金：

美国国家科学基金会;

关键词：

electrochemical promotion; oxidation; ethylene; propylene; Faradaic efficiency;

D O I：

10.1016/S0167-2738(00)00518-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of electrochemical promotion (NEMCA) was investigated for the oxidation of ethylene and propylene on Pt deposited on 4.5 mol% Y2O3-10 mol% TiO2-85.5 mol% ZrO2 (YZTi10) which is believed to be an ionic conductor with some n-type electronic conductivity in reducing environments. It was found that YZTi10 can induce the effect of electrochemical promotion for both C2H4 and C3H6 oxidation with apparent Faradaic efficiency, Lambda, values up to 10(3). The rate enhancement ratio, rho = r/r(o), however was found to be much smaller than in the cases where 8 mol% Y2O3-stabilized-ZrO2 (YSZ) or even TiO2 is used as the solid electrolyte and O2- donor. The origin of this difference is not clear. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：833 / 837

页数：5

共 32 条

[1] ELECTROCHEMICAL PROMOTION OF OXYGEN-ATOM BACK-SPILLOVER FROM YTTRIA-STABILIZED ZIRCONIA ONTO A POROUS PLATINUM-ELECTRODE - DETECTION OF SERS SIGNALS [J].