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Characterization of Metal‐zeolite Composite Catalysts: Determining the Environment of the Active Phase
ChemCatChem ( IF 3.8 ) Pub Date : 2020-01-22 , DOI: 10.1002/cctc.201902039 Mitchell Juneau 1 , Renjie Liu 1 , Yikang Peng 1 , Akhilesh Malge 1 , Zhiqiang Ma 1 , Marc D. Porosoff 1
ChemCatChem ( IF 3.8 ) Pub Date : 2020-01-22 , DOI: 10.1002/cctc.201902039 Mitchell Juneau 1 , Renjie Liu 1 , Yikang Peng 1 , Akhilesh Malge 1 , Zhiqiang Ma 1 , Marc D. Porosoff 1
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Metal‐zeolite composite catalysts are attracting increased attention due to their unique multifunctional properties. However, it is challenging to identify the physicochemical environment of the active phase, which is essential to improve our understanding of the structure‐performance relationships of such complex catalysts. In this work, commonly available analytical techniques (FTIR, TEM, XRD, etc.) and state‐of‐the‐art user instrumentation (XAS, SANS, e‐TEM, etc.) are reviewed with respect to their applications at different stages of the catalyst lifetime, from early nucleation, to the reaction mechanism and deactivation. Each technique is discussed in detail with examples to provide suggestions and guidelines for choosing the characterization technique(s) that are most appropriate for determining the desired structure‐property relationships of metal‐zeolite composite catalysts. Understanding the most appropriate applications of characterization techniques promotes development of novel synthesis methodologies, and in turn, applications for designing active, selective and stable multifunctional metal‐zeolite composite catalysts.
中文翻译：
金属沸石复合催化剂的表征：确定活性相的环境
金属沸石复合催化剂因其独特的多功能特性而受到越来越多的关注。然而，鉴定活性相的物理化学环境是一项挑战，这对于增进我们对这种复杂催化剂的结构-性能关系的理解至关重要。在这项工作中，针对其在不同阶段的应用，对常用的分析技术（FTIR，TEM，XRD等）和最新的用户仪器（XAS，SANS，e-TEM等）进行了回顾。从早期成核到反应机理和失活的催化剂寿命。将通过示例详细讨论每种技术，以提供建议和指导，以选择最适合用于确定金属沸石复合催化剂所需结构性质关系的表征技术。了解表征技术的最合适应用将促进新型合成方法的发展，进而促进设计活性，选择性和稳定的多功能金属沸石复合催化剂的应用。
更新日期：2020-01-22
中文翻译：
金属沸石复合催化剂的表征：确定活性相的环境
金属沸石复合催化剂因其独特的多功能特性而受到越来越多的关注。然而，鉴定活性相的物理化学环境是一项挑战，这对于增进我们对这种复杂催化剂的结构-性能关系的理解至关重要。在这项工作中，针对其在不同阶段的应用，对常用的分析技术（FTIR，TEM，XRD等）和最新的用户仪器（XAS，SANS，e-TEM等）进行了回顾。从早期成核到反应机理和失活的催化剂寿命。将通过示例详细讨论每种技术，以提供建议和指导，以选择最适合用于确定金属沸石复合催化剂所需结构性质关系的表征技术。了解表征技术的最合适应用将促进新型合成方法的发展，进而促进设计活性，选择性和稳定的多功能金属沸石复合催化剂的应用。
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