Modification of catalytic activity by applied bias at gradient composition CuO/ZnO hetercontact
- Univ. of Tokyo (Japan); and others
In the present study, CuO/ZnO heterocontact is fabricated by stacking six layers of CuO/ZnO porous ceramics of different compositions. CuO/ZnO heterocontact is one of the smart sensor materials for selective CO gas sensing. Its gas sensitivity can be controlled by changing the applied bias and the possibility applied voltage-dependent CO oxidative reaction at the CuO/ZnO interface is suggested. The rate of CO oxidative reaction is measured and the effect of applied bias is studied and discussed.The applicability of the electronic theory to the heterogeneous catalytic reaction is suggested by these experimental results. 11 refs., 3 figs., 1 tab.
- OSTI ID:
- 96293
- Journal Information:
- Journal of Catalysis, Journal Name: Journal of Catalysis Journal Issue: 2 Vol. 153; ISSN 0021-9517; ISSN JCTLA5
- Country of Publication:
- United States
- Language:
- English
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