Affiliation:
1. School of Materials Science and Engineering Jiangsu University Zhenjiang Jiangsu 212013 P. R. China
2. School of Chemistry and Chemical Engineering/Guangzhou Key Laboratory for Clean Energy and Materials/Key Laboratory for Water Quality and Conservation of the Pearl River Delta Ministry of Education Guangzhou University Guangzhou Higher Education Mega Center No. 230 Wai Huan Xi Road Guangzhou 510006 P. R. China
3. School of Environmental Science and Engineering Qingdao University Qingdao Shandong 266071 P. R. China
Abstract
AbstractConstructing rich defect active site structure for material design is still a great challenge. Herein, a simple surface engineering strategy is demonstrated to construct one‐unit‐cell ZnIn2S4 atomic layers with the modulated surface energy of S vacancy. Rich surface energy can regulate and control the rich S vacancy, which ensures rich active sites, higher charge density and effective carrier transport. As a result, the ZnIn2S4 atomic layers with rich surface energy affords an obvious enhancement in H2O2 productive rate of 1592.04 µmol g−1 h−1, roughly 14.58 times superior to that with poor surface energy. Moreover, the in situ infrared diffuse reflection spectrum indicates that S vacancy as the oxygen reduction reaction active site is responsible for the critical intermediate *O2− and *OOH, corresponding to two‐electron oxygen reduction reaction. This study provides a valuable insight and guidance for constructing controllably defects to achieve highly efficient H2O2 production.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Guangdong Province
Guangzhou University
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
19 articles.
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