催化学报 ›› 2013, Vol. 34 ›› Issue (5): 851-864.DOI: 10.1016/S1872-2067(12)60592-0

• 综述 • 上一篇    下一篇

负载型铜基催化剂组分间相互作用及其催化性能

董林a,b, 姚小江a, 陈懿a   

  1. a 南京大学化学化工学院, 介观化学教育部重点实验室, 江苏 南京 210093;
    b 南京大学现代分析中心, 江苏省机动车尾气污染控制重点实验室, 江苏 南京 210093
  • 收稿日期:2013-02-22 修回日期:2013-05-20 出版日期:2013-05-06 发布日期:2013-05-06
  • 通讯作者: 董林
  • 基金资助:

    国家自然科学基金(20873060,20973091);国家重点基础研究发展计划(973计划,2010CB732300);江苏省科技支撑计划工业项目(SBE201100389).

Interactions among supported copper-based catalyst components and their effects on performance: A review

DONG Lina,b, YAO Xiaojianga, CHEN Yia   

  1. a School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing 210093, Jiangsu, China;
    b Center of Modern Analysis, Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University, Nanjing 210093, Jiangsu, China
  • Received:2013-02-22 Revised:2013-05-20 Online:2013-05-06 Published:2013-05-06
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (20873060, 20973091), the National Basic Research Program of China (2010CB732300), and Jiangsu Science and Technology Support Program (SBE201100389).

摘要:

负载型铜基催化剂因其良好的催化性能和相对低廉的价格在诸多重要工业催化反应中得到广泛的应用.探讨负载型铜基催化剂中组分间的相互作用,有助于了解相关催化作用的本质,为现有催化剂的改进和新催化剂的设计提供科学依据.本文综述了近年来我们就CuO在不同载体上的分散、铜物种和载体的改性及其物理化学性质以及催化CO完全氧化、CO+NO和NH3+NO+O2反应性能等方面的研究进展.结果表明,CuO在多种氧化物载体表面的分散和所得负载型铜基催化剂的一些物理化学性质可参考“嵌入模型”得到解释,本文主要讨论了以CeO2,CexZr1-xO2和Mo3-CeO2为载体的一些铜基催化剂的组成-结构-性质间的关系.

关键词: 负载型铜基催化剂, 表面相互作用, 嵌入模型, 一氧化碳完全氧化, CO+NO反应, NH3+NO+O2反应

Abstract:

Supported copper-based catalysts are widely used in many industrial processes because of their excellent catalytic performance and low cost. Understanding the interactions among the various components of these catalysts is an important step in exploring the nature of the catalytic reactions and provides a valuable scientific basis for the design of novel and efficient catalysts. This review summarizes a number of our recent results in this field. In this work, copper oxide was loaded on CeO2, CexZr1-xO2, and MoO3-CeO2 supports to produce model catalysts. Investigations involving these materials demonstrated that the dispersion of copper oxide on the surface of the oxide supports, as well as some of the properties of these catalysts, can be explained on the basis of the incorporation model, which we have previously proposed. Based on spectroscopic characterization of these catalysts and examination of their catalytic performance for the oxidation of CO or the selective catalytic reduction of NO with CO/NH3, the relationships among the compositions, structures, and properties of these catalysts are discussed.

Key words: Supported copper-based catalyst, Surface interaction, Incorporation model, Carbon monoxide oxidation, CO+NO reaction, NH3+NO+O2 reaction