期刊
ACS APPLIED ENERGY MATERIALS
卷 5, 期 1, 页码 1175-1182出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c03552
关键词
crystal structure; photocatalysis; perovskite; CO2 reduction; charge transfer
资金
- National Natural Science Foundation of China [21773242]
Improving the stability and charge transportation efficiency of lead halide perovskites is crucial for practical photocatalytic applications. A microporous boron imidazolate framework (BIF-122-Co) was designed and synthesized to encapsulate CsPbBr3 perovskite, enhancing the charge separation process in photocatalytic CO2 reduction reaction. This work offers a guide for exploring excellent perovskite/metal-organic framework (MOF) composites.
Improving the stability and charge transportation efficiency of lead halide perovskites is the key for their practical photocatalytic applications. Herein, we designed and synthesized a microporous boron imidazolate framework (BIF-122-Co) by cross-linking boron imidazolate ligands and benzene carboxylate with metal ions, which was further used as a host matrix to encapsulate CsPbBr3 perovskite via a sequential deposition route to obtain a composite material, CsPbBr3/BIF-122-Co. Due to the intimate host-guest interfacial contact in the composite material, BIF-122-Co not only provided a physical protective barrier for CsPbBr3 but also accelerated the photoinduced charge separation process in the photocatalytic CO2 reduction reaction. The work provided a guide for exploration of excellent perovskite/ metal-organic framework (MOF) composites.
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