催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (7): 793-796.

• 研究论文 • 上一篇    下一篇

ZrO2 对 CuMn2/Al-Ti 整体式催化剂催化苯燃烧反应性能的影响

张志强1,2, 贺站锋1,2, 王娟芸1, 王奂祎1,2, 李吉花1,2, 蒋 毅1, 陈君和1, 张小霞1   

  1. 1中国科学院成都有机化学研究所, 四川成都 610041 2中国科学院研究生院, 北京 100049
  • 收稿日期:2010-07-25 出版日期:2010-07-25 发布日期:2010-07-25

Effect of ZrO2 Addition on the Properties of CuMn2/Al-Ti Monolithic Catalysts for Benzene Catalytic Combustion

ZHANG Zhiqiang1,2, HE Zhanfeng1,2, WANG Juanyun1, WANG Huanyi1,2, LI Jihua1,2, JIANG Yi1,*, CHEN Junhe1, ZHANG Xiaoxia1   

  1. 1Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-07-25 Online:2010-07-25 Published:2010-07-25

PDF

964

被引次数

36

摘要： 采用浸渍法制备了 MnOx/Al0.82Ti0.18Ox (Mn/Al-Ti), Cu/Al-Ti, CuMn2/Al-Ti 和 CuMn2Zr1.25/Al-Ti 四种整体式催化剂, 并利用 X 射线衍射、X 射线光电子能谱、H2程序升温还原和氮吸附等手段对催化剂进行了表征, 考察了各整体式催化剂催化苯燃烧反应性能. 结果表明, ZrO2 的添加能明显提高催化剂的比表面积, 促进各活性组分的分散和表面氧浓度的增加, 从而提高催化剂表面的氧化能力, CuMn2Zr1.25/Al-Ti 整体式催化剂在 281 oC 时苯转化率达 91%, 表现出最高的低温催化活性.

关键词: 氧化铜, 氧化锰, 氧化锆, 整体式催化剂, 催化燃烧, 苯

Abstract: A series of MnOx/Al0.82Ti0.18Ox (Mn/Al-Ti), Cu/Al-Ti, CuMn2/Al-Ti, and CuMn2Zr1.25/Al-Ti monolithic catalysts were prepared by the wet impregnation method. X-ray diffraction, X-ray photoelectron spectroscopy, H2 temperature-programmed reduction, and N2 adsorption were used to characterize the catalysts. The results showed that the addition of ZrO2 in the catalysts increases the specific surface area, component dispersion, oxygen species concentration on the surface, and the redox ability of the catalysts. The monolithic catalysts have high catalytic activity, and the benzene conversion of 91% was obtained at temperature as low as 281 oC.

Key words: copper oxide, manganese oxide, zirconia, monolithic catalyst, catalytic combustion, benzene