Effects of Ceria and CO Reductant on N2O Decomposition over the Layered Mixed Oxide Catalysts 


Vol. 16,  No. 4, pp. 284-291, Dec.  2010


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  Abstract

Nitrous oxide (N2O) is a greenhouse material which is hard to remove. Even with a catalytic process it requires a reaction temperature, at least, higher than 670 K. This study has been performed to see the effects of Ce addition to the mixed oxide catalyst which shows the highest activity in decomposing N2O completely at temperature as low as 473 K when CO is used as a reducing agent. Mixed metal oxide(MMO) catalyst was made through co-precipitation process with small amount of Ce added to the base components of Co, AI and Rh or Pd. Consequently, the surface area of the catalyst decreased with the contents of Ce, and the catalytic activity of direct decomposition of N2O also decreased. However, in the presence of CO, the activity was found high enough to compensate the portion of activity decrease by Ce addition, so that it can be ascertained that the catalytic activity and stability can be maintained in the CO involved N2O reduction system when Ce is added for the physical stability of the catalyst.

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  Cite this article

[IEEE Style]

Y. KS and C. KS, "Effects of Ceria and CO Reductant on N2O Decomposition over the Layered Mixed Oxide Catalysts," Clean Technology, vol. 16, no. 4, pp. 284-291, 2010. DOI: .

[ACM Style]

Yang KS and Chang KS. 2010. Effects of Ceria and CO Reductant on N2O Decomposition over the Layered Mixed Oxide Catalysts. Clean Technology, 16, 4, (2010), 284-291. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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