物理化学学报 >> 2010, Vol. 26 >> Issue (04): 895-907.doi: 10.3866/PKU.WHXB20100444

催化和表面结构 上一篇    下一篇

低碳烷烃选择氧化金属氧化物催化剂的结构与其催化性能的关系

张胜红, 刘海超   

  1. 北京大学化学与分子工程学院, 分子动态与稳态国家重点实验室, 北京分子科学国家实验室, 北京 100871
  • 收稿日期:2009-12-17 修回日期:2010-02-02 发布日期:2010-04-02
  • 通讯作者: 刘海超 E-mail:hcliu@pku.edu.cn

Relationship between the Structures of Metal Oxide Catalysts and Their Properties in Selective Oxidation of Light Alkanes

ZHANG Sheng-Hong, LIU Hai-Chao   

  1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2009-12-17 Revised:2010-02-02 Published:2010-04-02
  • Contact: LIU Hai-Chao E-mail:hcliu@pku.edu.cn

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摘要：

基于金属氧化物催化剂的低碳烷烃选择氧化是催化研究的一个热点和难点, 而认识催化剂的结构与其催化性能之间的关系对于获得高效催化剂, 解决低碳烷烃选择氧化反应中存在的问题至关重要. 本文围绕催化剂的结构对其催化性能的影响, 概述了V-P-O、V-Sb-O、Mo-V-Te-Nb-O和V-Mg-O等几类典型的氧化物催化剂体系在这方面的研究进展. 结合我们开发的Re-Sb-O催化剂体系, 分析了多功能中心、活性位分离、两相协同效应等方面对金属氧化物催化剂的催化性能的影响. 这些认识将有助于设计合成性能优异的催化剂及实现低碳烷烃的选择氧化活化和定向转化.

关键词: 低碳烷烃, 选择氧化, 金属氧化物催化剂, 构效关系

Abstract:

It is of great importance to study the selective oxidation of light alkanes on metal oxide catalysts from a fundamental and industrial point of view. Clarification of the relationship between the structure of the oxide catalysts and their catalytic properties is vital for the design of efficient catalysts and for the realization of efficient oxidative conversion of light alkanes. In this review, we summarize some recent progress in the understanding of the structures and catalytic properties of several catalysts including V-P-O, V-Sb-O, Mo-V-Te-Nb-O, and V-Mg-O metal oxides. These oxides as well as the Re-Sb-O catalysts developed by us have been extensively studied for the selective oxidation of light alkanes. We then revisit several key aspects including multi-functionality, site isolation, and phase cooperation. These aspects are required for catalysts that are efficient in the selective oxidation of light alkanes and will provide insights into the design and synthesis of metal oxide catalysts and their efficient application to the oxidative conversion of light alkanes.

Key words: Light alkanes, Selective oxidation, Metal oxide catalyst, Structure-property relationship