Affiliation:
1. Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Material Chemistry and Service Failure Hubei Engineering Research Center for Biomaterials and Medical Protective Materials School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 P. R. China
Abstract
AbstractAssembling bimetallic alloys (BAs) with metal–organic frameworks (MOFs) to form heterojunctions has emerged as a promising strategy for the construction of highly active electrocatalysts. However, the current approaches to prepare BA@MOF heterojunctions suffer from poor controllability. In this work, a fascinating method involving partial thermal reduction and galvanic replacement to induce CuPt growth on a CuHHTP MOF (HHTP=2,3,6,7,10,11‐hexahydroxytriphenylene) is reported in order to construct a CuPt@CuHHTP heterojunction. The size of the CuPt nanoparticles can be effectively regulated by modifying the reduction temperature. The resultant CuPt NP@CuHHTP heterojunction nanoarrays exhibit high electrocatalytic activity and potential as an electrochemical H2O2 sensor with a low detection limit (5 nM), high sensitivity (6.942 mA ⋅ mM−1 ⋅ cm−2), and outstanding selectivity. This in situ approach provides not only new insights into the preparation of BA@MOF‐based heterojunctions but also an effective approach for the optimization of the catalytic performance of MOFs and related materials.
Funder
China Postdoctoral Science Foundation
National Natural Science Foundation of China
Natural Science Foundation of Hubei Province
Subject
General Chemistry,Catalysis,Organic Chemistry