Effect of CeO2 on the Silver Species and Its Catalytic Activity for  CO Oxidation

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (7): 1605.

• Preface • Previous Articles Next Articles

Effect of CeO2 on the Silver Species and Its Catalytic Activity for CO Oxidation

QU Zhen-Ping^1*, ZHANG Xiao-Dong¹, CHEN Dan¹, LI Xin-Yong¹, WEN Meng¹, WANG Yi¹, MA Ding², WU Jing-Jing²

1. Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China;
2. State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Received:2010-07-22 Revised:2010-10-12 Online:2011-07-10 Published:2011-06-02
Contact: QU Zhen-Ping E-mail:zhenpq@dicp.ac.cn
Supported by:
国家自然科学基金(批准号: 20807010)和新世纪优秀人才支持计划(批准号: NCET-09-0256)资助.

Abstract

Abstract: 8 wt% Ag/CeO2-SiO2 catalysts for CO oxidation were prepared by an incipient wetness co-impregnation and two-step impregnation methods. XRD, UV-Vis, BET were used for the characterization of the catalysts and the catalytic activity for CO oxidation was studied. The effects of CeO2 on the silver active species for CO oxidation were discussed. It was found that 8 wt% Ag/1 wt%CeO2-SiO2 showed better catalytic activity for CO oxidation, and the activity was further increased after hydrogen treatment. XRD and UV-Vis characterization results showed that CeO2 favored the dispersion of Ag particles on the surface of SiO2, and silver cluster was the main silver species when more CeO2 is supported on the surface of SiO2.

Key words: Ag, CO catalytic oxidation, CeO2, active species

TrendMD:

QU Zhen-Ping*, ZHANG Xiao-Dong, CHEN Dan, LI Xin-Yong, WEN Meng, WANG Yi, MA Ding, WU Jing-Jing. Effect of CeO2 on the Silver Species and Its Catalytic Activity for CO Oxidation[J]. Chem. J. Chinese Universities, 2011, 32(7): 1605.

[1]	HUAN Xinyu, LAI Ganqiang, HUANG Yue, YANG Caiguang. Research Progress on Chemical Intervention of N⁶-methyladenosine Modification [J]. Chem. J. Chinese Universities, 2022, 43(Album-4): 20220340.
[2]	GUO Cheng, ZHANG Wei, TANG Yun. Ordered Mesoporous Materials： History， Progress and Perspective [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220167.
[3]	ZHENG Anni, JIN Lei, YANG Jiaqiang, WANG Zhaoyun, LI Weiqing, YANG Fangzu, ZHAN Dongping, TIAN Zhongqun. Effects of 5，5-Dimethylhydantoin on Electroless Copper Plating [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220191.
[4]	LI Lin, QI Fenglian, QIU Lili, MENG Zihui. Dynamic Amorphous Photonic Structure Patterns Assembled by Hexagonal Magnetic Nanosheets [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220123.
[5]	WENG Meiqi, SHANG Guiming, WANG Jiatai, LI Shenghua, FAN Zhi, LIN Song, GUO Minjie. Template Simulation of Organophosphorus Nerve Agent Molecularly Imprinted Polymers [J]. Chem. J. Chinese Universities, 2022, 43(8): 20220136.
[6]	GUO Zhiqiang, YANG Boru, XI Chanjuan. Recent Advances in Reductive Functionalization of Carbon Dioxide with Borohydride Reagents [J]. Chem. J. Chinese Universities, 2022, 43(7): 20220199.
[7]	LI Zhiguang, QI Guodong, XU Jun, DENG Feng. Role of Catalyst Acidity in Glucose Conversion over Sn-Al-β Zeolite as Studied by Solid-state NMR [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220138.
[8]	GAO Wenxiu, LYU Jieqiong, GAO Yongping, KONG Changjian, WANG Xueping, GUO Shengnan, LOU Dawei. Preparation of Ethyl α⁃Cyanocinnamate Catalyzed by Nitrogen-rich Porous Organic Polymers [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220078.
[9]	YAN Jiasen, HAN Xianying, DANG Zhaohan, LI Jiangang, HE Xiangming. Preparation and Performance of Paraffin/Expanded Graphite/Graphene Composite Phase Change Heat Storage Material [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220054.
[10]	ZHAO Sheng, HUO Zhipeng, ZHONG Guoqiang, ZHANG Hong, HU Liqun. Preparation of Modified Gadolinium/Boron/Polyethylene Nanocomposite and Its Radiation Shielding Performance for Neutron and Gamma-ray [J]. Chem. J. Chinese Universities, 2022, 43(6): 20220039.
[11]	ZHAO Yongmei, MU Yeshu, HONG Chen, LUO Wen, TIAN Zhiyong. Bis-naphthalimide Derivatives for Picronitric Acid Detection in Aqueous Solution [J]. Chem. J. Chinese Universities, 2022, 43(3): 20210765.
[12]	ZHANG Shiyu, HE Runhe, LI Yongbing, WEI Shijun, ZHANG Xingxiang. Fabrication of Lithium-sulfur Battery Cathode with Radiation Crosslinked Low Molecular Weight of Polyacrylonitrile and the Mechanism of Sulfur Storage [J]. Chem. J. Chinese Universities, 2022, 43(3): 20210632.
[13]	ZHOU Yonghui, LI Yao, WU Yuxuan, TIAN Jing, XU Longquan, FEI Xu. Synthesis of A Novel Photoluminescence Self-healing Hydrogel [J]. Chem. J. Chinese Universities, 2022, 43(2): 20210606.
[14]	CHU Yao, WANG Shuo, ZHANG Zinuo, WANG Yibo, CAI Yibing. Preparation and Properties of Cu Particles Loaded Foam-based Phase Change Composites [J]. Chem. J. Chinese Universities, 2022, 43(2): 20210619.
[15]	WU Zexin, ZHU Yuanjie, WANG Hongzhong, WANG Junan, HE Ying. Methyl-modified Carbazole/Diphenyl Sulfone-based AIE-TADF Blue Emitter and Its OLEDs [J]. Chem. J. Chinese Universities, 2022, 43(11): 20220371.

Effect of CeO2 on the Silver Species and Its Catalytic Activity for CO Oxidation

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments