Effect of Ce and Zr modification on the performance of Cu/ZSM-5 catalysts in direct decomposition of NO

YANG Peng-fei; ZHOU Ji-cheng; WANG Zhe

Volume 40 Issue 04

Apr. 2012

Turn off MathJax

Article Contents

Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > (04): 475-480

YANG Peng-fei, ZHOU Ji-cheng, WANG Zhe. Effect of Ce and Zr modification on the performance of Cu/ZSM-5 catalysts in direct decomposition of NO[J]. Journal of Fuel Chemistry and Technology, 2012, (04): 475-480.

Citation:

YANG Peng-fei, ZHOU Ji-cheng, WANG Zhe. Effect of Ce and Zr modification on the performance of Cu/ZSM-5 catalysts in direct decomposition of NO[J]. Journal of Fuel Chemistry and Technology, 2012, (04): 475-480.

Citation:

PDF( 461 KB)

Effect of Ce and Zr modification on the performance of Cu/ZSM-5 catalysts in direct decomposition of NO

1.
Key Laboratory of Green Catalysis and Chemical Reaction Engineering in College of Hunan Province, School of Chemistry and Chemical Engineering, Xiangtan University, Xiangtan 411105, China;
2.
School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China

Received Date: 2011-04-11
Rev Recd Date: 2011-07-26
Publish Date: 2012-04-30

Abstract

Abstract

Cu/ZSM-5 catalysts were modified by adding Ce and Zr components and then characterized by O₂-TPD and TG analysis. The effect of ion-exchange sequence, Ce/Zr mol ratio and reaction conditions on the catalytic performance of Ce and Zr modified Cu/ZSM-5 were investigated. The results indicated that Cu species is essential in Zr-Cu-Ce/ZSM-5 catalyst as the active sites for NO decomposition, while the modification with Ce and Zr components can significantly enhance its catalytic performance for direct decomposition of NO in the presence of oxygen and reduce the reaction temperature required for achieving the maximum conversion of NO. The Zr-Cu-Ce/ZSM-5 catalyst modified by simultaneous Ce and Zr ion-exchange with Ce/Zr mol ratio of 1 exhibits thehighest performance for NO decomposition.
- NO decomposition,
- modification,
- oxygen-resistance,
- ceria,
- zirconium

FullText(HTML)

References(18)

References

李惠娟, 蒋晓原, 林辉, 郑小明. 等离子体协同CuO/TiO₂–γ-Al₂O₃催化CH₄脱除NO[J]. 高等学校化学学报, 2008, 29(7): 1393-1399. (LI Hui-juan, JIANG Xiao-yuan, LIN hui, ZHENG Xiao-ming. Removal of NO by CH₄ using CuO /TiO₂ –γ-Al₂O₃ catalyst in combination with plasma [J]. Chemical Research in Chinese Universities, 2008, 29(7): 1393-1399.)

WU R J, CHOU T Y, YEH C T. Enhancement effect of gold and silver on nitric oxide decomposition over Pd/Al₂O₃ catalysts[J]. Appl Catal B, 1995, 6(2): 105-116.

KAGAWA S, YAHIRO H. ESR study of the motional dynamics of NO₂ adsorbed on Na-mordenite[J]. Chem Lett, 1996, 256(1): 27-32.

郭锡坤, 陈庆生, 张俊豪, 李治国. Cu/Al₂O₃催化剂的改性及其对 NO选择性还原的催化性能[J]. 催化学报, 2005, 26(12): 1104-1108. (GUO Xi-kun, CHEN Qing-sheng, ZHANG Jun-hao, LI Zhi-guo. Modification of Cu/Al₂O₃ catalyst and its catalytic performance for selective reduction of NO[J]. Chinese Journal of Catalysis, 2005, 26(12): 1104-1108)

阳鹏飞, 周继承, 李德华, 任文明. Au/TS-1选择性催化氧化NO性能研究[J]. 燃料化学学报, 2010, 38(1): 80-84. (YANG Peng-fei, ZHOU Ji-cheng, LI De-hua, REN Wen-ming. Catalytic performance of Au/TS-1 in selective oxidation of nitrogen monoxide[J]. Journal of Fuel Chemistry and Technology, 2010, 38(1): 80-84. )

CIARDELLI C, NOVA I, TRONCONI E, CHATTERJEE D, BURKHARDT T, WEIBEL W. NH₃ SCR of NO_x for diesel exhausts after treatment: Role of NO₂ in catalytic mechanism, unsteady kinetics and monolith converter modeling [J]. Chem Eng Sci, 2007, 62(18/20): 5001-5006.

MASAKI H, MASUI T, IMANAKA N. Direct decomposition of nitric oxide into nitrogen and oxygenover C-type cubic Y₂O₃-ZrO₂ solid solutions[J]. J Alloys Compd, 2008, 451(1/2): 406-409.

陈建孟, Lancehershman, 陈浚, Daniel P.Y.Chang. 自养型生物过滤器硝化氧化一氧化氮[J]. 环境科学, 2003, 24(2): 1-6. (CHEN Jian-meng, Lancehershman, Chen Ju, Daniel P.Y. Chang. Autotrophic biofilters for oxidation of nitric oxide[J]. Chinese Journal of Environmental Science, 2003, 24(2): 1-6. )

IWAMOTO M, YAHIROh, TANDAK, MIZUNO N, MINE Y,KAGAWA S. Removal of nitrogen monoxide through a novel catalytlc process: 1 Decomposition on excessively copper ion exchanged ZSM-5 zeolites[J]. J Phys Chem, 1991, 95(9): 3727-3730.

石川, 宋志民, 付迎, 杨学锋. Ni²⁺改性的Cu-ZSM-5催化分解NO的性能[J]. 环境科学, 2000, 21(6): 24-27. (SHI Chuan, SONG Zhi-min, FU Ying, YANG Xue-feng. Decomposition of NO over Ni²⁺ modified Cu-ZSM-5 catalysts [J]. Chinese Journal of Environmental Science, 2000, 21(6): 24-27.

YAHIRO H, NAGANO T, YAMAURA h. Direct decomposition of nitrogen monoxide over Cu-MFI containing rare-earth elements: Sm and Gd as promoter[J]. Catal Today, 2007, 126(3/4): 284–289.

H. Redox interplay at copper oxide-(Ce, Zr)O_x interfaces: Influence of the presence of NO on the catalytic activity for CO oxidation over CuO/CeZrO₄[J]. J Catal, 2003, 214(1/2): 261-272.

YU Q, LIU L, DONG L, LI D, LIU B, GAO F, SUN K, DONG L, CHEN Y. Effects of Ce/Zr ratio on the reducibility, adsorption and catalytic activity of CuO/CexZr_1-xO₂/γ-Al₂O₃ catalysts for NO reduction by CO[J]. Appl Catal B, 2010, 96(3/4): 350-360.

TENG M, LUO L, YANG X. Synthesis of mesoporous Ce_1-xZr_xO₂ (x = 0.2-0.5) and catalytic properties of CuO based catalysts[J]. Microporous Mesoporous Mater, 2009, 119(1/3): 158-164.

阳鹏飞, 周继承, 任文明. 微波固相法制备Cu/ZSM-5催化剂及其催化性能[J]. 南华大学学报, 2010, 24(3): 64-69. (YANG Peng-fei, ZHOU Ji-cheng, REN Wen-ming. Preparation of Cu/ZSM-5 catalysts by dry reaction under microwave irradiation and their catalytic performance[J]. Journal of University of South China, 2010, 38(1): 80-84. )

单学蕾, 关乃佳, 曾翔, 陈继新, 项寿鹤. 含铜MFI分子筛的H₂-TP0₂-TPD研究[J]. 催化学报, 2001, 22(3): 237-241. (SHAN Xue-lei, GUAN Nai-jia, ZENG Xiang, CHEN Ji-xin, XIANG Shou-he. Studies on Cu-Containing MFI Zeolites by H₂-TPR and O₂-TPD[J]. Chinese Journal of Catalysis, 2001, 22(3): 237-241.)

郭锡坤, 林树东. Cu/ La/ CeO₂-Al₂O₃的制备及其对丙烯选择性还原NO的催化活性[J]. 催化学报, 2005, 29(3): 221-227. (GUO Xi-kun, LIN Shu-dong. Preparation of Cu/ La/ CeO₂-Al₂O₃ and its catalytic activity for selective reduction of NO with propylene [J]. Chinese Journal of Catalysis, 2005, 29(3): 221-227.)

曲虹霞, 钟秦, 邓选英. Ce³⁺(La³⁺) 改性Cu-ZSM-5催化剂分解NO活性的研究[J]. 中国环境科学, 2006, 26(4): 395-399. (QU Hong-xia, ZHONG Qin, DENG Xuan-ying. Studies on NO activity decomposed by Cu-ZSM-5 catalysts modified with rare earth Ce³⁺(La³⁺)[J]. China Environmental Science, 2006, 26(4): 395-399. )

Relative Articles

Supplements(0)

Cited By

Proportional views