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N2O Decomposition over K-Ce Promoted Co-M-Al Mixed Oxide Catalysts Prepared from Hydrotalcite-like Precursors.
- Source :
- Chinese Journal of Chemical Physics (1674-0068); Apr2014, Vol. 27 Issue 2, p233-239, 7p
- Publication Year :
- 2014
-
Abstract
- A series of mixed oxide catalysts with different composition of Co-M-Al and Co-M-Ce-Al (M=Zn, Ni, Cu) were prepared by co-precipitation method from hydrotalcite-like compounds. The experimental results revealed the catalytic activity of Co-Ni-Al is slightly higher than that of Co-Zn-Al and much higher than that of Co-Cu-Al for direct decomposition of N<subscript>2</subscript>O. Moreover, addition of small amounts of CeO<subscript>2</subscript> improved the catalytic activity significantly and made the decomposition temperatures at which the N<subscript>2</subscript>O conversion was 50% and 90% (T<subscript>50</subscript> and T<subscript>90</subscript>) both decreased 80°C than those of Co-M-Al catalysts without CeO<subscript>2</subscript> added. Further, potassium-load also promoted the catalytic activity, and the decomposition temperatures of T<subscript>50</subscript> and T<subscript>90</subscript> both decreased approximately 50°C. It is significant for decomposing N<subscript>2</subscript>O from industries and reducing carbon emission from atmosphere. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16740068
- Volume :
- 27
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Chinese Journal of Chemical Physics (1674-0068)
- Publication Type :
- Academic Journal
- Accession number :
- 96519145
- Full Text :
- https://doi.org/10.1063/1674-0068/27/02/233-239