文献类型：期刊文献

中文题名：Operando拉曼光谱技术在铁基费托合成和二氧化碳加氢反应中的应用

英文题名：Application of Operando Raman technique on Fischer-Tropsch synthesis and CO_2 hydrogenation over Fe-based catalysts

作者：刘向林[1];韩一帆[1,2]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237;[2]郑州大学化工与能源学院,河南郑州450001

年份：2019

卷号：47

期号：1

起止页码：5

中文期刊名：陕西师范大学学报（自然科学版）

外文期刊名：Journal of Shaanxi Normal University：Natural Science Edition

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：国家重点研发计划(2018YFB0604500)

语种：中文

中文关键词：动态现场原位技术;铁基催化剂;构-效关系;二氧化碳加氢;费托合成

外文关键词：Operandotechnique;iron-based catalysts;structure-performance relationship;carbon dioxide hydrogenation;Fischer-Tropsch synthesis

摘要：催化剂是多相催化反应的核心,由于催化反应的复杂性,人类对于催化剂活性相的认知十分有限。反应过程中催化剂构-效关系的构建对于理解催化反应过程和改进催化剂至关重要,动态现场原位(Operando)技术能实时监测催化剂结构演变并在线检测反应产物,促进工业催化剂的理性设计。本文首先介绍了催化反应和动态现场原位表征技术的发展历史,并结合近期的研究进展,描述了Operando拉曼技术在铁基费托合成(Fischer-Tropsch synthesis(FTS))和二氧化碳加氢两种典型催化反应中的应用,展示了不同预处理和前驱体条件下,催化剂的结构演变过程及构-效关系。然而,目前Operando技术的时间分辨率和空间分辨率仍需进一步提升,此外,Operando技术在固液,气液催化反应中仍具有巨大的开发潜力。
Catalysts are the core of heterogeneous catalytic reactions.Due to the complexity of catalytic reactions,humans have very limited knowledge of the active phases of the catalysts.The structure-performance relationship of the catalyst during the reaction is important for understanding the catalytic reaction process and improving the catalyst.The Operandotechnique can monitor the evolution of the catalyst structure in real time,detect the reaction products online and promote the rational design of industrial catalysts.Firstly,this paper introduces the development history of catalytic reaction and dynamic in-site characterization technique,and then describes theOperando Raman technique in Fischer-Tropsch synthesis(FTS)and CO2 hydrogenation combining with recent research progress.The application of typical catalytic reactions demonstrate the structural evolution process and structure-performance relationship of the catalyst under different pretreatment and precursor conditions.However,the temporal resolution and spatial resolution of the current Operandtechnique still need to be further improved.In addition,the Operando technique still has vast development potential in solid-liquid and gas-liquid catalytic reactions.