文献类型：期刊文献

英文题名：Bifunctional Metal-Organic Layer for Selective Photocatalytic Carbon Dioxide Reduction to Carbon Monoxide

作者：Liao, Yingling[1,2];Wang, Zitong[1];Li, Jinhong[1];Fan, Yingjie[1];Wang, David[1];Shi, Li[2];Lin, Wenbin[1]

机构：[1]Univ Chicago, Dept Chem, Chicago, IL 60637 USA;[2]East China Univ Sci & Technol, Int Joint Res Ctr Green Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：14

期号：22

起止页码：16957

外文期刊名：ACS CATALYSIS

收录：;EI(收录号：20244517338164);WOS:【SCI-EXPANDED(收录号:WOS:001347442300001)】；

基金：This work was supported by NSF (CHE-2102554) and the University of Chicago.

语种：英文

外文关键词：metal-organic framework; two-dimensional materials; heterogeneous photocatalysis; CO2 photoreduction; synergistic catalysis

摘要：We report a bifunctional metal-organic layer (MOL) as a photocatalyst for CO2 reduction to CO under visible light irradiation with a turnover number of 6990 in 24 h and a CO selectivity of 99%. The fully accessible and modifiable Hf-12 secondary building units and the coordinating porphyrin linkers of the MOL allow for the integration of both Ru photosensitizers and catalytic Fe-porphyrin sites into one single platform. The close distance (similar to 11 & Aring;) between the Ru photosensitizer and the catalytic center leads to enhanced electron transfer and promotes photocatalytic CO2 reduction. This strategy leads to an increase of the CO2-to-CO turnover number for the bifunctional MOL catalyst over a combination of a homogeneous Ru photosensitizer and an Fe-porphyrin complex. The mechanism of MOL-catalyzed CO2 photoreduction was also studied by photophysical and electrochemical experiments.