NO removal by activated carbon-supported copper catalysts prepared by impregnation, polyol, and microwave heated polyol processes

被引：50
作者：
Chuang, Kui-Hao [1 ]
Lu, Chi-Yuan [2 ,3 ]
Wey, Ming-Yen [1 ]
Huang, Ya-Ni [1 ]
机构：
[1] Natl Chung Hsing Univ, Dept Environm Engn, Taichung 402, Taiwan
[2] Chung Shan Med Univ, Dept Publ Hlth, Taichung 402, Taiwan
[3] Chung Shan Med Univ Hosp, Dept Family & Community Med, Taichung 402, Taiwan
来源：
APPLIED CATALYSIS A-GENERAL | 2011年 / 397卷 / 1-2期
关键词：
NO removal; Microwave heated polyol process; Copper species; Catalyst; ACID TREATMENTS; REDUCTION; CO; NH3; ZEOLITE; SURFACE; SITES; NI;
D O I：
10.1016/j.apcata.2011.03.003
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of HNO3 pretreatment of activated carbon (AC)-supported copper catalysts for NO removal with NH3 was studied. In addition, the effects of various preparation methods for Cu/AC catalysts, namely, impregnation (IM), polyol process (P), and microwave heated polyol process (MP), on the activity of NO removal with NH3 were compared. HNO3 pretreatment increased the number of carboxyl sites and promoted good dispersion of active sites. In addition, the chemical states of active phases were found to be affected when the catalysts were prepared by the microwave heated polyol process. More Cu2O particles were observed on the Cu/AC-N-MP catalyst than on the Cu/AC-N-P catalyst. The experimental results indicated that HNO3 pretreatment of the AC support led to increased catalytic activity for NO removal with NH3. The catalytic activity of the Cu/AC catalysts for NO removal at 200 degrees C decreased in the following order: Cu/AC-N-MP > Cu/AC-N-P > Cu/AC-N-IM. The microwave heated polyol process is a facile method for the rapid synthesis of carbon-supported Cu catalysts for NO removal at low temperature. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：234 / 240
页数：7
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