文献类型：期刊文献

英文题名：Promotional effect of gadolinia on CuO catalyst for reduction of NO by activated carbon

作者：Xue, Yuye[1]; Lu, Guanzhong[1]; Guo, Yun[1]; Guo, Yanglong[1]; Wang, Yanqin[1]; Zhang, Zhigang[1]

机构：[1] Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China

年份：2010

卷号：132

起止页码：76

外文期刊名：Advanced Materials Research

收录：EI(收录号：20110213578496)

语种：英文

外文关键词：Copper oxides - Nitric oxide - Activated carbon - Reduction

摘要：The Gd2O3 (gadolinia) modified CuO/AC catalysts for NO reduction by activated carbon were prepared and characterized by XRD, TPD-MS, EPR, XPS techniques. The results show that adding a small amount of Gd 2O3 in the CuO catalyst can improve effectively its catalytic performance for NO reduction by activated carbon, and the appropriate molar ratio of Gd2O3/CuO is 0.03:1. The promotional effect of Gd2O3 stems from the cooperative effects between CuO and Gd2O3. The presence of Gd2O3 in the catalyst can alter the chemical state and environment of the CuO active sites and improve the catalytic activation of carbon by CuO to form more carbon reactive sites, resulting in the quicker transfer and release of oxygen decomposed from NO. The carboxylic groups on the surface of activated carbon play an important role in the catalytic reduction of NO by carbon at temperature below 300 °C. ? (2010) Trans Tech Publications, Switzerland.