Evolution and Enabling Capabilities of Spatially Resolved Techniques for the Characterization of Heterogeneously Catalyzed Reactions
Evolution and Enabling Capabilities of Spatially Resolved Techniques for the Characterization of Heterogeneously Catalyzed Reactions
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DOI：
10.1021/acscatal.5b02602
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发表时间：
2016-01
期刊：
影响因子：
12.9
通讯作者：
K. Morgan;Jamal Touitou;Jae-Soon Choi;C. Coney;C. Hardacre;J. Pihl;Cristina E. Stere;Miyoung Kim
中科院分区：
文献类型：
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作者：
K. Morgan;Jamal Touitou;Jae-Soon Choi;C. Coney;C. Hardacre;J. Pihl;Cristina E. Stere;Miyoung Kim
催化剂和催化过程的开发和优化需要反应动力学和机制的知识。在传统的催化剂动力学表征中，入口处的气体成分是已知的，并且测量出口流量以确定浓度的变化。因此，催化剂内化学反应的进展尚不清楚。电磁和物理探针的技术进步使可视化催化剂样品中的化学演化成为现实，作为通常称为空间分辨率的方法的一部分。在这里，我们讨论和评估空间分辨技术的发展，包括催化研究这一不断发展的领域的演变和成就。从物理探针对催化系统的侵入性以及如何将实验获得的空间分布与动力学模型结合使用来讨论此类技术的影响。此外，进一步发展的一些目标和愿望......
The development and optimization of catalysts and catalytic processes requires knowledge of reaction kinetics and mechanisms. In traditional catalyst kinetic characterization, the gas composition is known at the inlet, and the exit flow is measured to determine changes in concentration. As such, the progression of the chemistry within the catalyst is not known. Technological advances in electromagnetic and physical probes have made visualizing the evolution of the chemistry within catalyst samples a reality, as part of a methodology commonly known as spatial resolution. Herein, we discuss and evaluate the development of spatially resolved techniques, including the evolutions and achievements of this growing area of catalytic research. The impact of such techniques is discussed in terms of the invasiveness of physical probes on catalytic systems, as well as how experimentally obtained spatial profiles can be used in conjunction with kinetic modeling. Furthermore, some aims and aspirations for further evolu...