催化学报 ›› 2012, Vol. 33 ›› Issue (6): 986-992.DOI: 10.1016/S1872-2067(11)60389-6

• 研究论文 • 上一篇    下一篇

活化温度对 CuBTC 催化 CO 氧化反应性能的影响

邱文革a, 王昱, 李传强, 展宗城, 訾学红, 张桂臻, 王锐, 何洪b   

  1. 北京工业大学环境与能源工程学院化学化工系, 北京 100124
  • 收稿日期:2012-01-10 修回日期:2012-03-20 出版日期:2012-05-30 发布日期:2012-05-30

Effect of Activation Temperature on Catalytic Performance of CuBTC for CO Oxidation

QIU Wengea, WANG Yu, LI Chuanqiang, ZHAN Zongcheng, ZI Xuehong, ZHANG Guizhen, WANG Rui, HE Hongb   

  1. Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2012-01-10 Revised:2012-03-20 Online:2012-05-30 Published:2012-05-30

摘要: 考察了金属有机骨架材料 CuBTC (BTC 为均苯三酸) 催化 CO 氧化的反应性能, 发现 CuBTC 对 CO 氧化反应表现出良好的催化活性, 且 CuBTC 样品的活化温度对其催化活性的影响很大. 原位漫反射红外光谱、粉末 X 射线衍射、扫描电镜、热重分析和差示扫描量热结果表明, CO 在 CuBTC 骨架中不饱和金属位点上的配位是加速 CO 氧化的主要原因, 且这种不饱和金属位点越多, 其催化活性越高.

关键词: 金属有机骨架材料, 铜均苯三酸, 一氧化碳, 活化条件, 气固催化

Abstract: CuBTC (BTC = benzene-1,3,5-tricarboxylate), an metal-organic framework (MOF), is active for CO oxidation. The activation temperature has a significant effect on its activity. In-situ diffuse reflectance Fourier transform infrared spectroscopy, powder X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis and differential scanning calorimetry (TGA/DSC) characterization showed that the coordination of CO on the open metal sites occurred during the oxidation reaction, and more open metal sites in the CuBTC framework gave a higher activity.

Key words: metal-organic framework, copper benzene-1,3,5-tricarboxylate, carbon monoxide, activation condition, gas-solid catalysis