期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 13, 页码 15113-15121出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c21749
关键词
atomically dispersed catalysts; microenvironment; hydroformylation; heterogeneous catalysis; rhodium; electronic effect
资金
- National Natural Science Foundation of China [21776296, 21905291]
- National Key Research and Development Program of China [2017YFB0602203]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21090201]
- Key Research Program of the Chinese Academy of Sciences [ZDRW-ZS-2018-1-3]
- Shanghai Sailing Program [19YF1453000]
Effective control of the microenvironment of active sites is crucial for improving the selectivity of products in heterogeneous homogeneous processes. The development of a high-performance Rh-based atomically dispersed catalyst demonstrates that rational design of the local microenvironment of active metals is important to optimize catalytic performance.
In the study of heterogeneity of homogeneous processes, effective control of the microenvironment of active sites is a reliable means to improve the selectivity of products. Here, we develop a high-performance Rh-based atomically dispersed catalyst for olefin hydroformylation by controlling the electronic environment and spatial distribution of active metals on the supports, which is achieved through wet impregnation of Rh on ZnO modified with Pi and Co. Various characterizations demonstrate that Co weakens Rh-CO interactions and Pi promotes the formation of atomically dispersed Rh, which thereby improves the selectivity of linear aldehydes in hydroformylation. This strategy of rationally designing the local microenvironment of active metals is important to optimize the catalytic performance.
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