Effect of Cu doping on the SCR activity of CeO2 catalyst prepared by citric acid method

Rui-tang Guo; Wen-long Zhen; Wei-guo Pan; Yue Zhou; Jie-nan Hong; Hong-jian Xu; Qiang Jin; Cheng-gang Ding; Shi-yi Guo

Journal of Industrial and Engineering Chemistry, Vol.20, No.4, 1577-1580, July, 2014

DOI10.1016/j.jiec.2013.07.051 Export Citation

Effect of Cu doping on the SCR activity of CeO2 catalyst prepared by citric acid method

Rui-tang Guo^{1, 2, †}, Wen-long Zhen^{1, 2}, Wei-guo Pan^{1, 2}, Yue Zhou^{1, 3}, Jie-nan Hong^{1, 2}, Hong-jian Xu^{1, 2}, Qiang Jin^{4, 2}, Cheng-gang Ding^{4, 2}, and Shi-yi Guo^{4, 2}

¹School of Energy Source and Mechanical Engineering, Shanghai University of Electric Power, Shanghai, PR China
²Shanghai Engineering Research Center of Power Generation Environment Protection, Shanghai, PR China
³Shanghai Waigaoqiao No.3 Power Generation Co., Ltd., Shanghai, PR China
⁴SEC-IHI Power Generation Environment Protection Engineering Co. Ltd., Shanghai, PR China

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CeO2-CuO catalyst prepared by citric acid method was investigated for selective catalytic reduction of NO with NH3. The activity of the CeO2 catalyst was enhanced about 8-27% in the temperature range of 125-225 ℃ at a space velocity of 28,000 h^(-1) by the addition of Cu. It was found that the state of Cu species had great impact on the SCR performance of CeO2-CuO catalyst. Cu2+ can enhance the low temperature activity of SCR reaction, while CuO would promote NH3 oxidation before SCR reaction at high temperature, which would cause the decrease of its high temperature SCR activity.

Keywords:NO;SCR;NH3;CeO2;CeO2-CuO

[References]

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[Referenced By]

[1] Moliner M, Franch C, Palomares E, Grill M, Corma A, Chem. Commun., 48, 8264 (2012)

[2] Zhao JF, Song YC, Lam WH, Liu WG, Liu Y, Zhang Y, Wang DY, Energy Conv. Manag., 52(2), 1343 (2011)

[3] Kim MH, An TH, Res. Chem. Intermed., 37, 1333 (2011)

[4] Wu Z, Jin R, Wang H, Liu Y, Catal. Commun., 10, 935 (2009)

[5] Liu FD, He H, Ding Y, Zhang CB, Appl. Catal. B: Environ., 93(1-2), 194 (2009)

[6] Gao X, Jiang Y, Fu Y, Zhong Y, Luo Z, Cen K, Catal. Commun., 11, 465 (2010)

[7] Shen Y, Zhu S, Qiu T, Shen S, Catal. Commun., 11, 20 (2009)

[8] Gu T, Liu Y, Weng X, Wang H, Wu Z, Catal. Commun., 12, 310 (2010)

[9] Chen LA, Li JH, Ge MF, Zhu RH, Catal. Today, 153(3-4), 77 (2010)

[10] Qi G, Yang RT, Chem. Commun., 39, 848 (2003)

[11] Gao X, Du X, Cui L, Fu Y, Luo Z, Cen K, Catal. Commun., 12, 255 (2010)

[12] Du XS, Gao X, Cui LW, Zheng ZZ, Ji PD, Luo ZY, Cen KF, Appl. Surf. Sci., 270, 370 (2013)

[13] Jiang X, Lu P, Li C, Zeng Z, Zeng G, Hu L, Mai L, Li Z, Electron. Technol., 34, 591 (2013)

[14] Thirupathi B, Smirniotis PG, Appl. Catal. B: Environ., 110, 195 (2011)

[15] Jiang D, Zhang M, Li C, Jiang H, Catal. Commun., 17, 59 (2012)

[16] Qi GS, Yang RT, J. Phys. Chem. B, 108(40), 15738 (2004)

[17] Mhamdi M, Khaddar-Zine S, Ghorbel A, Appl. Catal. A: Gen., 357(1), 42 (2009)

[18] Du XS, Gao X, Cui LW, Fu YC, Luo ZY, Cen KF, Fuel, 92(1), 49 (2012)

[19] Choi EY, Nam IS, Kim YG, J. Catal., 161(2), 597 (1996)

[20] Damyanova S, Perez CA, Schmal M, Bueno JMC, Appl. Catal. A: Gen., 234(1-2), 271 (2002)

[21] Murugan B, Ramaswamy AV, J. Phys. Chem. C, 112, 20429 (2008)

[22] Gao X, Jiang Y, Zhong Y, Luo ZY, Cen KF, J. Hazard. Mater., 174(1-3), 734 (2010)

[23] Shan W, Liu F, He H, Shi X, Zhang C, Appl. Catal. B: Environ., 115-116, 100 (2012)

[24] Lu G, Li XY, Qu ZP, Zhao QD, Zhao L, Chen GH, Chem. Eng. J., 168(3), 1128 (2011)

[25] Korhonen ST, Fickel DW, Lobo RF, Weckhuysen BM, Beale AM, Chem. Commun., 47, 800 (2011)

[26] Wang L, Li W, Qi GS, Weng D, J. Catal., 289, 21 (2012)