Cluster Structure and Reactions: Gaining Insights into Catalytic Processes
Cluster Structure and Reactions: Gaining Insights into Catalytic Processes
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DOI：
10.1007/s10562-011-0670-7
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发表时间：
2011-09-01
影响因子：
2.8
通讯作者：
Castleman, A. W., Jr.
中科院分区：
文献类型：
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作者：
Castleman, A. W., Jr.
对于团簇科学领域以外的许多研究人员来说，可以了解到许多关于它与催化的相关性，甚至将讨论限制在电离系统上，这可能会让他们感到惊讶。这一观点主要集中在以过渡金属氧化物为中心的氧自由基起主导作用的催化氧化反应。其目的是介绍如何通过采用替代方法来获得对反应机理的基本见解，这些方法补充而不是取代催化领域中的更传统的方法。考虑到缺陷中心在影响反应性方面的公认作用，以及最近提出带电部位重要性的证据的论文的优势，进行重复性实验的需要/愿望是显而易见的。本文介绍了使用簇合物来实现这一点的方法，以便揭示基本的催化反应机理，并使用已识别的超原子和元素模拟的概念来定制具有所需功能的催化剂。
To many researchers outside the field of cluster science it may come as a surprise that much can be learned of its relevance to catalysis, even restricting the discussion to ionized systems. This perspective is largely focused on catalytic oxidation reactions in which oxygen radical centers on transition metal oxides play a dominant role. The objective is to present how fundamental insights into reaction mechanisms can be gained through employing alternative approaches that complement rather than supersede more conventional methods in t he field of catalysis. In view of the well acknowledged role of defect centers in effecting reactivity, and the preponderance of recent papers presenting evidence of the importance of charged sites, the need/desire to conduct repetitive experiments is clear. Presented herein are approaches using clusters to accomplish this in order to unravel fundamental catalytic reaction mechanisms, and to use identified superatoms and the concepts of element mimics to tailor catalysts with desired functionality.