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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Characterization of Gas-Solid Reactions using In Situ Powder X-ray Diffraction
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Characterization of Gas-Solid Reactions using In Situ Powder X-ray Diffraction

机译:利用原位粉末X射线衍射表征气固反应

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摘要

X-ray diffraction is a superior technique for structural characterization of crystalline matter. Here we review the use of in situ powder X-ray diffraction (PXD) mainly for real-time studies of solid-gas reactions, data analysis and the extraction of valuable knowledge of structural, chemical and physical properties. Furthermore, the diffraction data may also provide knowledge on reaction mechanisms, kinetics and thermodynamic properties. Thus, in situ PXD simultaneously provides properties as a function of pressure, temperature and/or time at different length scales, i.e. nanoscale structural data and bulk sample properties. Initially, a brief description of experimental and methodological details is provided, followed by a variety of examples of different designs of experiments and methods of data analysis. Additionally, it is discussed how a range of physical properties can be accessed by diffraction techniques, e.g. crystallite size. The aim of this review is to provide new inspiration for utilization of in situ PXD for characterization of a wide range of properties beyond the scope of crystal structure solution.
机译:X射线衍射是一种用于结晶物结构表征的高级技术。在这里,我们回顾了原位粉末X射线衍射(PXD)的使用,主要用于固体气体反应的实时研究,数据分析以及对结构,化学和物理性质的有价值知识的提取。此外,衍射数据还可提供关于反应机理,动力学和热力学性质的知识。因此,原位PXD同时在不同的长度尺度上提供作为压力,温度和/或时间的函数的特性,即纳米尺度的结构数据和大量样品的特性。最初,提供了对实验和方法学细节的简短描述,然后提供了各种不同的实验设计和数据分析方法的示例。另外,还讨论了如何通过衍射技术(例如,光学显微镜)获得一系列的物理性质。微晶尺寸。这篇综述的目的是为利用原位PXD表征晶体结构解决方案范围之外的各种特性提供新的启发。

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