Citation: WU Gui-Sheng, MAO Dong-Sen, LU Guan-Zhong, CAO Yong, FAN Kang-Nian. In situ Infrared Characterization of Methanol Adsorption on ZrO₂ Modified Cu Catalysts[J]. Acta Physico-Chimica Sinica, ;2012, 28(02): 433-436. doi: 10.3866/PKU.WHXB201112062 shu

In situ Infrared Characterization of Methanol Adsorption on ZrO₂ Modified Cu Catalysts

1.
1. Research Institute of Applied Catalysis, Academy of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China;
2. Department of Chemistry, Fudan University, Shanghai 200433, P. R. China

Received Date: 17 October 2011
Available Online: 6 December 2011
Fund Project: 上海重点学科(J51503) (J51503)上海市分子催化和功能材料重点实验室(2009KF06)资助项目 (2009KF06)

The adsorption and reaction of methanol on Cu and ZrO₂/Cu were investigated using in situ infrared diffuse reflectance spectroscopy, in which the catalysts were reduced at different temperatures in order to change the content of surface oxygen species and investigate the change trends of methanol adsorption and reaction over the catalysts with the oxygen species content. The results show that methanol is adsorbed on the surface of Cu to produce CO₂ via the intermediate of adsorbed formaldehyde, while the intermediate of formate is formed on the surface of ZrO₂/Cu. The production rate of CO₂ via the intermediate becomes slower with the rise of the reduction temperature of the catalysts, illustrating that the content of oxygen species on the surface of the catalysts determines the formation of the intermediate and the reaction rate.
- Methanol adsorption,
- In situ infrared diffuse reflectance,
- Cu,
- ZrO₂/Cu
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

In situ Infrared Characterization of Methanol Adsorption on ZrO2 Modified Cu Catalysts

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通讯作者: 陈斌, bchen63@163.com

In situ Infrared Characterization of Methanol Adsorption on ZrO₂ Modified Cu Catalysts