N2O reduction by CO over Pt electrode in a solid oxide electrolyte cell

被引:9
作者
Belyaev, VD [1 ]
Politova, TI [1 ]
Sobyanin, VA [1 ]
机构
[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia
关键词
nitrous oxide; reduction; carbon monoxide; platinum; solid oxide electrolyte cell;
D O I
10.1023/A:1019014725066
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 reduction of nitrous oxide by carbon monoxide in a cell with a solid oxygen-conducting electrolyte -CO+N2O, Pt\0.9ZrO(2)+0.1Y(2)O(3)\Pt+PrO2, air - was studied. Experiments were performed in the temperature range 410 - 670 degrees C. The reaction kinetics under open-circuit conditions and the effect of current passing through the cell on the reaction rate were found to depend on the gaseous composition. In particular: (i) for a reaction mixture rich in N2O, in contrast to the reaction mixture rich in CO, the temperature steady-state multiplicity of the reaction was observed under open-circuit conditions; (ii) for the reaction mixture rich in CO, in contrast to the reaction mixture rich in N2O, a slight non-Faradaic enhancement of the reaction rate upon cathodic current application was demonstrated.
引用
收藏
页码:43 / 47
页数:5
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