Adsorption-Desorption Characteristics of NO, N2O and O2 over Mixed Oxide Catalysts of AlCoPd (1/1/0.05) and AlCoFe (1/1/2) 


Vol. 17,  No. 2, pp. 142-149, Jun.  2011


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  Abstract

The adsorption and desorption behaviors of NO and N2O over two mixed oxide catalysts, AlCoPd (1/1/0.05) and AlCoFe (1/1/2), have been investigated for the lean NOx trap applications. The catalysts showed good adsorption capabilities for NO and N2O without needing oxidation step. The adsorption decreased a lot when they are co-adsorbed with oxygen. While NO kept high adsorbability and selectivity with respect to oxygen, those of N2O decreased sharply. From the TPD results, NO and N2O are considered to decompose into nitrogen and oxygen in the higher temperature range and the oxygen seems to be strongly attached to the catalysts even at high temperature.

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  Cite this article

[IEEE Style]

H. AR, H. Y, C. KS, "Adsorption-Desorption Characteristics of NO, N2O and O2 over Mixed Oxide Catalysts of AlCoPd (1/1/0.05) and AlCoFe (1/1/2)," Clean Technology, vol. 17, no. 2, pp. 142-149, 2011. DOI: .

[ACM Style]

Han AR, Hwang Y, and Chang KS. 2011. Adsorption-Desorption Characteristics of NO, N2O and O2 over Mixed Oxide Catalysts of AlCoPd (1/1/0.05) and AlCoFe (1/1/2). Clean Technology, 17, 2, (2011), 142-149. DOI: .

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