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化学进展 DOI: 10.7536/PC120810 前一篇   后一篇

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金属、金属氧化物纳米晶催化剂: 结构与催化性能关系研究

王定胜, 李亚栋   

  1. 清华大学化学系 北京 100084
  • 出版日期:2013-01-24 发布日期:2012-12-27
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Metal and Metal Oxide Nanocatalysts: Investigating the Influence of Structural Characteristics on their Catalytic Performance

Wang Dingsheng  Li Yadong   

  1. Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Online:2013-01-24 Published:2012-12-27

金属与金属氧化物纳米晶作为常见催化材料(催化剂、助催化剂或载体),在过去的几十年中引起了人们极大的关注。近年来, 纳米催化领域, 尤其是纳米晶催化剂的可控制备技术, 虽然取得了许多重要的进展, 然而, 真正理解纳米晶催化剂三性(活性、选择性和稳定性)与其微观结构上的内在联系一直以来都是具有挑战性的科学难题。怎样理解催化反应过程中纳米晶催化剂的活性位点?什么是影响其催化性能的关键因素。如何理解纳米催化的物理化学本质, 认识其规律性, 提高纳米晶催化剂活性、选择性和稳定性均是纳米催化领域有待解决的重要科学问题。我们课题组针对这些问题和挑战开展了纳米催化研究工作。本文总结了近年来课题组所取得的研究成果。

关键词： 金属, 金属氧化物, 纳米晶, 结构, 催化性能

In the past few decades, metal and metal oxide nanocrystals, as the most common catalytic materials, have attracted broad attention from worldwide scientists. Although considerable progress has been made in nanocatalysis, especially in controllable synthesis of nanocrystalline catalysts, it still remains a great challenge to fully understand the relationship between the catalytic properties (activity, selectivity, and durability) of nanocrystals with their structural characteristics in varied types of reactions. Actually, recognizing the regularity of nanocatalysis and revealing its physical and chemical nature are significant basic issues in catalytic science and technology. According to these basic scientific issues, our group has carried out systematic research work. This mini account highlights the recent progress in this area in our group.

Key words: Metal, Metal oxide, Nanocrystals, Structural characteristics, Catalytic properties

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