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Catalytic decomposition of N2O over CeO2 promoted Co3O4 spinel catalyst
Open accessAbstract
A series of CeO2 promoted cobalt spinel catalysts were prepared by the co-precipitation method and tested for the decomposition of nitrous oxide (N2O). Addition of CeO2 to Co3O4 led to an improvement in the catalytic activity for N2O decomposition. The catalyst was most active when the molar ratio of Ce/Co was around 0.05. Complete N2O conversion could be attained over the CoCeO.05 catalyst below 400 degrees C even in the presence of O-2, H2O or NO. Methods of XRD, FE-SEM, BET, XPS, H-2-TPR and O-2-TPD were used to characterize these catalysts. The analytical results indicated that the addition of CeO2 could increase the surface area Of Co3O4, and then improve the reduction of Co3+ to Co2+ by facilitating the desorption of adsorbed oxygen species, which is the rate-determining step of the N2O decomposition over cobalt spinel catalyst. We conclude that these effects, caused by the addition of CeO2, are responsible for the enhancement of catalytic activity Of Co3O4. (c) 2007 Elsevier B.V. All rights reserved.
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Cited by
Electrochemical nitrate reduction by using a novel Co 3 O 4 /Ti cathode
Su, L., Li, K., Zhang, H., Fan, M., Ying, D., Sun, T., Wang, Y., & Jia, J. (2017) · Water Research · doi:10.1016/j.watres.2017.04.069 · Cited by 312
Song, K., Cho, E., & Kang, Y.-M. (2015) · ACS Catalysis · doi:10.1021/acscatal.5b01196 · Cited by 112
Metadata
- Authors
- Xue, L., Zhang, C., He, H., & Teraoka, Y.
- Venue
- Applied Catalysis B: Environmental
- Publisher
- Elsevier BV
- Published
- 2007-09
- Volume
- 75
- Issue
- 3-4
- Pages
- 167-174
- ISSN
- 0926-3373 (ISSN-L)
- OpenAlex
- W2001772886
- Cited by
- 515
- References
- 0
- FWCI
- 5.67
- Type
- journal article
- Language
- en
- Open access
- green
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- Xue, L., Zhang, C., He, H., & Teraoka, Y. (2007). Catalytic decomposition of N2O over CeO2 promoted Co3O4 spinel catalyst. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2007.04.013
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