Direct Decomposition of Nitrous Oxide over Fe-beta Zeolite 


Vol. 15,  No. 2, pp. 122-129, Jun.  2009


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  Abstract

The effect ofcalcination temperature or hydrothermal treatment ofcommercial Fe-beta zeolites in the range of 450~900 ℃ were examined in the direct decomposition of N2O. Fe-beta zeolites used were characterized using XRD, N2 sorption,27AlMAS NMR and XPS. Although the surface area and micropore volume of Fe-beta zeolite after calcination at 900 ℃ and hydrothermal treatment at 750 ℃ decreased ca. 30%, a larger decrease in the surface area and micropore volume by hydrothermal treatment was observed than by calcination treatment alone. However, the Al sites in frameworks of zeolite were conserved in stable tetrahedral form resulting from low degree of dealumination which was related to the adjacent Fe ions on the Al sites. This could likely be correlated with the conservation of high surface area and micropore volume of Fe-beta zeolites. The increase in the calcination or hydrothermal treatment temperature caused the increase of decomposition temperature of N2O and the severe deactivation was observed after hydrothermal treatment than calcination treatment.

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  Cite this article

[IEEE Style]

P. JH, J. SH, K. NV, S. CH, "Direct Decomposition of Nitrous Oxide over Fe-beta Zeolite," Clean Technology, vol. 15, no. 2, pp. 122-129, 2009. DOI: .

[ACM Style]

Park JH, Jeon SH, Khoa NV, and Shin CH. 2009. Direct Decomposition of Nitrous Oxide over Fe-beta Zeolite. Clean Technology, 15, 2, (2009), 122-129. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지