Research on the Role of Reverse Hydrogen and Water Spillover in Methanol Decomposition over Cu/ZrO2 Catalyst

Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (10): 1017-1021. Previous Articles Next Articles

Original Articles

Cu/ZrO₂催化剂中的氢和水逆溢流效应及其对甲醇分解反应的影响

吴贵升，王路存，刘永梅，曹勇*, 戴维林，贺鹤勇，范康年*

(复旦大学化学系上海市分子催化和功能材料重点实验室上海 200433)

投稿日期:2005-09-25 修回日期:2006-01-18 发布日期:2006-05-25
通讯作者: 范康年

Research on the Role of Reverse Hydrogen and Water Spillover in Methanol Decomposition over Cu/ZrO₂ Catalyst

WU Gui-Sheng, WANG Lu-Cun, LIU Yong-Mei, CAO Yong*, DAI Wei-Lin, HE He-Yong, FAN Kang-Nian*

(Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials at Department of Chemistry,
Fudan University, Shanghai 200433)

Received:2005-09-25 Revised:2006-01-18 Published:2006-05-25
Contact: FAN Kang-Nian

Abstract

The interaction of H₂, H₂O and CH₃OH with pure ZrO₂ or Cu/ZrO₂ catalyst has been investigated by temperature programmed desorption and reaction to understand the nature of the surface sites and the mechanism involved in methanol decomposition. The results show that methanol decomposition over Cu/ZrO₂ occured primarily on ZrO₂ with the aid of surface oxygen anions and oxygen vacancies. The primary function of surface oxygen anions and oxygen vacancies was suggested to facilitate the dissociated adsorption of methanol, with the main role of metallic Cu to provide sites for H₂ removal by efficiently recombining the hydrogen atoms formed during the dehydrogenation of species located on zirconia.

Key words: hydrogen spillover, reverse spillover, ZrO₂, Cu/ZrO₂, methanol decomposition

Cite this article

WU Gui-Sheng, WANG Lu-Cun, LIU Yong-Mei, CAO Yong*, DAI Wei-Lin, HE He-Yong, FAN Kang-Nian*. Research on the Role of Reverse Hydrogen and Water Spillover in Methanol Decomposition over Cu/ZrO₂ Catalyst[J]. Acta Chimica Sinica, 2006, 64(10): 1017-1021.

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Cu/ZrO₂催化剂中的氢和水逆溢流效应及其对甲醇分解反应的影响

Research on the Role of Reverse Hydrogen and Water Spillover in Methanol Decomposition over Cu/ZrO₂ Catalyst

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Cu/ZrO2催化剂中的氢和水逆溢流效应及其对甲醇分解反应的影响