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On the Promotion of Ag/γ-Al2O3 by Cs for the SCR of NO by C3H6

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Abstract

The promotion of Ag/γ-Al2O3 by adding alkali metals (Li, Na, K, Cs) for selective catalytic reduction of NO with C3H6 was studied in this work. The activity of NO reduction was enhanced by addition of Cs to Ag/γ-Al2O3 in the presence of excess oxygen and SO2. The stability and growth of silver oxide particles were promoted and the dispersion of silver particles on γ-Al2O3 was improved by the addition of 0.5 wt% Cs and 1 wt% Cs to 2 wt% Ag/γ-Al2O3, respectively. The results were confirmed by H2 TPR, UV-Vis DRS, TEM, and XPS.

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Authors and Affiliations

  1. Department of Chemical Engineering, University of Alabama, Tuscaloosa, AL, 35487, USA

    In Hyuk Son

  2. Department of Environmental Engineering, Chongju University, Chongju, 360-764, Korea

    Moon Chan Kim

  3. Department of Chemical Engineering, Yonsei University, Seoul, 120-749, Korea

    Hyoung Lim Koh & Kyung-Lim Kim

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  1. In Hyuk Son
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  2. Moon Chan Kim
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  3. Hyoung Lim Koh
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Son, I.H., Kim, M.C., Koh, H.L. et al. On the Promotion of Ag/γ-Al2O3 by Cs for the SCR of NO by C3H6. Catalysis Letters 75, 191–197 (2001). https://doi.org/10.1023/A:1016796022644

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