Low Pressure RAIRS Studies of Model Catalytic Systems
Low Pressure RAIRS Studies of Model Catalytic Systems
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模型催化系统的低压 RAIRS 研究
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
W. A. Brown
中科院分区：
文献类型：
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作者：
Emma Wilson;W. A. Brown
在这篇综述中，我们考察了反射吸收红外光谱(RAIRS)作为研究模型催化剂表面的工具的使用。模型催化剂允许我们在受控环境中在原子水平上研究其表面的结构和物理性质，以便从根本上了解现实生活中的催化剂是如何工作的，以及如何改进它们。RAIRS是检查模型催化剂表面的一种特别好的技术，因为我们可以获得关于表面形态和可能存在的任何分子间相互作用的信息。与许多其他标准表面科学技术不同，RAIRS还可以用于在高压环境和超高真空条件下研究表面。在这里，我们回顾了一些例子，其中RAIRS已经被用来进一步了解模型催化剂的组成，并研究模型催化剂表面与小气体分子的相互作用。已经开展了一系列研究，考察了小气体分子在广泛的模型催化剂表面上吸附的温度、颗粒大小和气体压力依赖关系。
In this review we examine the use of reflection absorption infrared spectroscopy (RAIRS) as a tool for studying model catalyst surfaces. Model catalysts allow us to study the structural and physical properties of their surfaces at an atomic level in a controlled environment in order to gain a fundamental understanding of how "real-life" catalysts work and how they can be improved. RAIRS is a particularly good technique for examining model catalyst surfaces as we can gain information about the morphology of the surface and about any intermolecular interactions that may be present. RAIRS can also be used to study surfaces in high pressure environments, as well as at ultrahigh vacuum, unlike many other standard surface science techniques. Here we review a number of examples of where RAIRS has been used to further the knowledge of model catalyst composition and to study the interactions of model catalyst surfaces with small gas molecules. A range of studies have been carried out examining the temperature, particle size and gas pressure dependencies of the adsorption of small gas molecules on a wide range of model catalyst surfaces.