参与原位反应的有机金属纳米簇的研究进展  

Advances in Organometallic Nanoclusters Involved in In-situ Reactions

作　　者：李翠翠 LI Cuicui(SINOPEC(Beijing)Research Institute of Chemical Industry Co.,Ltd.,Yanshan Branch,Beijing 102500,China)

机构地区：[1]中石化(北京)化工研究院有限公司燕山分公司,北京102500

出　　处：《化工技术与开发》2024年第7期48-53,共6页Technology & Development of Chemical Industry

摘　　要：有机金属纳米簇是指有机骨架通过碳-金属键键合、以多金属聚集为特征的纳米尺寸的金属簇合物。该类簇合物往往作为中间体,存在于过渡金属或金属簇催化的有机反应中,在有机反应转化过程中发挥着重要作用。认识反应过程中涉及到的有机骨架键合的金属簇结构,有助于我们理清整个反应历程,并设计出更高效的催化剂。但是由于其具有高反应活性,因此对反应过程中涉及到的有机金属簇中间体的捕获和表征仍具有很大的挑战。本文总结了单金属催化反应以及金属纳米簇催化反应中原位生成的有机金属纳米簇,通过TEM、X射线吸收精细结构光谱(EXAFS)等多种表征手段,对反应过程中涉及到的有机骨架键合的金属簇结构有了系统认识,可为后续设计更高效的催化剂奠定基础。Organometallic nanoclusters refered to nano-sized metal clusters with organic frameworks featured by carbon-polymetal bonding and multi-metal aggregation.Such nanoclusters often existed as intermediates in many transition metals or metal clusters catalyzed organic reactions,and played an important role in the organic transformation.Deepening the understanding of the metal cluster structures involved in organic skeleton bonding during the reaction process was crucial for clarifying the entire reaction process and designing more efficient catalysts.However,due to their high reactivity,it was still a great challenge to capture and characterize organometre-metal cluster intermediates involved in the reaction process.In this paper,the monometallic catalytic reactions and metal nanoclusters catalyzed reactions of organic metal nanoclusters in situ formation were summarized.The structure of metal clusters involved in the reaction process of organic skeleton bonding was systematically understood by TEM,X-ray absorption fine structure spectroscopy(EXAFS)and other characterization methods,which laid a foundation for the subsequent design of more efficient catalysts.

关 键 词：金属纳米簇 催化反应 原位 中间体 结构 

分 类 号：TQ426.8[化学工程] TB383[一般工业技术—材料科学与工程]