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Strongly Coupled Cobalt Diselenide Monolayers for Selective Electrocatalytic Oxygen Reduction to H2O2 under Acidic Conditions
Zhang, Xiao-Long; Su, Xiaozhi; Zheng, Ya-Rong; Hu, Shao-Jin; Shi, Lei; Gao, Fei-Yue; Yang, Peng-Peng; Niu, Zhuang-Zhuang; Wu, Zhi-Zheng; Qin, Shuai; Wu, Rui; Duan, Yu; Gu, Chao; Zheng, Xu-Sheng; Zhu, Jun-Fa; Gao, Min-Rui
2021
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
AbstractElectrosynthesis of hydrogen peroxide (H2O2) in the acidic environment could largely prevent its decomposition to water, but efficient catalysts that constitute entirely earth-abundant elements are lacking. Here we report the experimental demonstration of narrowing the interlayer gap of metallic cobalt diselenide (CoSe2), which creates high-performance catalyst to selectively drive two-electron oxygen reduction toward H2O2 in an acidic electrolyte. The enhancement of the interlayer coupling between CoSe2 atomic layers offers a favorable surface electronic structure that weakens the critical *OOH adsorption, promoting the energetics for H2O2 production. Consequently, on the strongly coupled CoSe2 catalyst, we achieved Faradaic efficiency of 96.7 %, current density of 50.04 milliamperes per square centimeter, and product rate of 30.60 mg cm(-2) h(-1). Moreover, this catalyst shows no sign of degradation when operating at -63 milliamperes per square centimeter over 100 hours.
Document Type期刊论文
Identifierhttp://ir.sari.ac.cn/handle/39PL6PPA/2654
Collection中国科学院上海高等研究院
个人在本单位外知识产出
Recommended Citation
GB/T 7714
Zhang, Xiao-Long,Su, Xiaozhi,Zheng, Ya-Rong,et al. Strongly Coupled Cobalt Diselenide Monolayers for Selective Electrocatalytic Oxygen Reduction to H2O2 under Acidic Conditions[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2021.
APA Zhang, Xiao-Long.,Su, Xiaozhi.,Zheng, Ya-Rong.,Hu, Shao-Jin.,Shi, Lei.,...&Gao, Min-Rui.(2021).Strongly Coupled Cobalt Diselenide Monolayers for Selective Electrocatalytic Oxygen Reduction to H2O2 under Acidic Conditions.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.
MLA Zhang, Xiao-Long,et al."Strongly Coupled Cobalt Diselenide Monolayers for Selective Electrocatalytic Oxygen Reduction to H2O2 under Acidic Conditions".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021).
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