Reaction kinetics of CH4-H2O gas-mixtures on Pt/YSZ system

被引：0

作者：

Onuma, S ^{[1
]}

Mizusaki, J ^{[1
]}

Kaimai, A ^{[1
]}

Kawamura, K ^{[1
]}

Nigara, Y ^{[1
]}

Kawada, T ^{[1
]}

Tagawa, H ^{[1
]}

机构：

[1] Tohoku Univ, Sci Measurements Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

SOLID OXIDE FUEL CELLS (SOFC VI) | 1999年 / 99卷 / 19期

关键词：

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

As a fundamental research on the internal reforming type SOFC anode reaction, a study was made on the reaction kinetics of the CH4-H2O gasmixtures at the interface of a porous Pt electrode / Y2O3-stabilized ZrO2 (YSZ) electrolyte at 873-1173 K. The rate of electrochemical oxidation of CH4 and that of the reforming products, H-2, CO, and C, were determined as a function of the electrode potential and temperature. It was found that the dominant electrochemical reaction is the oxidation of HZ The rate of the electrochemical oxidation of CO in a CH4-H2O system was found larger than that in a CO-CO2-inert gas system at temperatures below 1073 K. It was suggested that the electrochemical CO oxidation rate is enhanced by the co-existing H-2-H2O.

引用

页码：991 / 1000

页数：10

共 50 条

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