Effect of pretreatment on carbon oxidation activity over copper ion-exchanged zeolite catalysts |
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| Authors: | Hiroyuki Yamaura Tatsunori Akamatsu Yuya Abe Syuhei Yamaguchi Hidenori Yahiro |
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| Affiliation: | (1) Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan; |
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| Abstract: | The carbon oxidation over copper ion-exchanged zeolites (Cu-MFI, Cu-MOR, Cu-FAU, and Cu-BEA) pretreated at 700 °C was investigated. The catalytic activities of Cu-MFI, Cu-MOR, and Cu-FAU pretreated at 700 °C were higher for carbon oxidation in NO + O2 atmosphere than that of Cu-BEA. The TEM results demonstrated that Cu fine particles were formed on the external surface of Cu-MFI, Cu-MOR, and Cu-FAU, showing high activity. In addition, it was suggested that the coexisting NO plays an important role in enhancing the catalytic activity of Cu-MFI for carbon oxidation. |
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