期刊
CATALYSIS COMMUNICATIONS
卷 111, 期 -, 页码 70-74出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2018.04.004
关键词
Co3O4; SnO2-Co3O4; N2O decomposition
资金
- Shanxi provincial key research and development plan project [201603D121018-1]
- National Natural Science Foundation of China [21673132]
- Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University) [2016019]
The scope of this study was to investigate the effect of SnO2 addition on the structure and catalytic performance of Co3O4 for N2O decomposition. SnO2-Co3O4 exhibits much better catalytic activity in the absence or presence of water vapor than Co3O4. Spectroscopic characterization of SnO2-Co3O4 showed that this solid possesses higher degree of Co dispersion, smaller Co3O4 particles and larger S-BET due to the addition of SnO2. In addition, an interaction between Sn and Co oxides formed at the SnO2/Co3O4 interface promotes the electron donation ability of Co2+ and facilitates desorption of surface oxygen species, which might be considered as an important factor that contributes to the excellent catalytic performance of SnO2-Co3O4 for N2O decomposition.
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