Electrochemical promotion of IrO2 catalyst activity for the gas phase combustion of ethylene

• Published in: Journal of Applied Electrochemistry, vol. 28, num. 3, p. 223-226
• Publication date: 1998

The catalytic activity for the gas phase combustion of ethylene of an IrO2 film, used as electrode in a solid electrolyte cell, can be increased by polarizing the metal-solid electrolyte interface. The catalytic activity remains higher even after current interruption. To explain the increase in the open circuit rate after polarization the authors speculate that the IrO2 catalyst is oxidized at the catalyst-solid electrolyte interface, forming IrO2+d which is transported by surface and/or bulk diffusion to the gas exposed catalyst, thus modifying its catalytic activity. [on SciFinder (R)]

Reference

• GGEC-ARTICLE-1998-008
• doi:10.1023/A:1003295112211
• View record in Web of Science

Record created on 2006-02-22, modified on 2016-08-08