Construction of CuII Defects on CuCl Nanoparticles in Metal-Organic Frameworks toward Composite Catalysts with Superior Activity

Heng-Zhi Liu; Bo Li; Haiqiang Luo; Xiaohang Qiu; Jian-Gong Ma; Peng Cheng

doi:10.1021/acs.inorgchem.1c01589

Construction of Cu^II Defects on CuCl Nanoparticles in Metal-Organic Frameworks toward Composite Catalysts with Superior Activity

Inorg Chem. 2021 Aug 2;60(15):11626-11632. doi: 10.1021/acs.inorgchem.1c01589. Epub 2021 Jul 22.

Authors

Heng-Zhi Liu¹, Bo Li¹, Haiqiang Luo¹, Xiaohang Qiu¹, Jian-Gong Ma^{1

2}, Peng Cheng^{1

2}

Affiliations

¹ Department of Chemistry, Key Laboratory of Advanced Energy Material Chemistry (MOE) and Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, P. R. China.
² Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, P. R. China.

PMID: 34291940
DOI: 10.1021/acs.inorgchem.1c01589

Abstract

Metal-organic frameworks (MOFs) represent an ideal platform for the construction of highly active composite catalysts. However, loading metastable and/or multicomponent metal compounds into MOFs remains a synthetic bottleneck due to the great challenge of keeping the guest and matrix intact during the preparation of a composite. In this work, we develop a new impregnation reduction surface modification (IRSM) strategy to give a new composite catalyst CuCl@MIL-101(Cr), which is successfully postmodified by in situ construction of Cu^II defects on the surface of loaded CuCl inside MOF pores, leading to the new composite material Cu^II/Cu^I@MIL-101(Cr). The new dual-component composite catalyst exhibits a hierarchical structure and superior catalytic activity in C-C homocoupling of arylboronic acids under green conditions. This study presents a facile strategy for improving the catalytic activity by constructing defects on the surface of MOF-based catalysts as well as for forming multiple-component composite materials.