同步辐射XAFS技术在能源催化原位测量研究中的应用  

Synchrotron radiation XAFS applications in the in situ measurement for energy catalysis

作　　者：徐刘鑫 周婉琳 杨晨宇 苏徽 刘庆华[1] 孙治湖[1] 韦世强[1] Liuxin Xu;Wanlin Zhou;Chenyu Yang;Hui Su;Qinghua Liu;Zhihu Sun;Shiqiang Wei(National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China)

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029

出　　处：《中国科学：化学》2023年第11期2117-2144,共28页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:12135012,12205300,12075243);国家重点研发计划(编号:2021YFA1500403);中国科学院合肥科学中心研发重点项目(编号:2022HSC-KPRD003);安徽省自然科学基金(编号:2208085J01,2208085QA28)资助项目。

摘　　要：本文简要介绍了基于大科学装置的同步辐射X射线吸收精细结构谱学(XAFS)的基本原理和实验方法,以及在能源催化原位测量研究中的应用.通过选择近年来该领域的一些代表性研究论文,概述了原位XAFS技术研究气-固相和液-固相化学反应测量的实验装置,以及在研究能源催化材料结构动态演化过程和机理中的应用,展示了XAFS技术对原位测量化学反应条件下活性结构演变的强大表征能力,并展望了XAFS技术在原位化学测量研究中的机遇和挑战.This review presents a brief introduction of the basic principles,data analysis and experimental methods of synchrotron radiation-based X-ray absorption fine structure(XAFS)spectroscopy,as well as its applications in the in situ chemical measurements for energy catalysis researches.By selecting typical research papers in this field published in recent years,the experimental setups of in situ XAFS measurements are outlined for both gas-solid phase and liquidsolid phase chemical reactions.The focus is put on reviewing the applications of XAFS to study the structural dynamic evolution process of energy catalytic materials and reaction mechanism.These studies demonstrate the powerful characterization ability of the XAFS technique for in situ measurement of the active structure evolutions under real chemical reaction conditions,and point out further opportunities and challenges of XAFS for in situ measurements of other related chemical processes.

关 键 词：同步辐射 XAFS 原位测量 能源催化 局域结构演变 

分 类 号：G63[文化科学—教育学]