Supramolecular Macrocycle Regulated Single-Atom MoS2@Co Catalysts for Enhanced Oxygen Evolution Reaction

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外文摘要：The development of active water oxidation catalysts for water splitting has stimulated considerable interest.Herein,the design and building of single atom Co sites using a supramolecular tailoring strategy are reported,that is,the introduction of pillar[4]arene[1]quinone(P4A1Q)permits mononuclear Co species stereoelectronically assembled on MoS2 matrix to construct an atomically dispersed MoS2@Co catalyst with modulated local electronic structure,definite chemical environment and enhanced oxygen evolution reaction performance.Theoretical calculations indicate that immsobilized single-Co sites exhibit an optimized adsorption capability of oxygen-containing intermediates,endowing the catalyst an excellent electrocatalytic oxygen evolution reaction activity,with a low overpotential of 370 mV at 10 mA cm-2 and a small Tafel slope of 90 mV dec-1.The extendable potential of this strategy to other electrocatalysts such as MoS2@Ni and MoS2@Zn,and other applications such as the hydrogen evolution reaction was also demonstrated.This study affords new insights into the rational design of single metal atom systems with enhanced electrocatalytic performance.

外文关键词：

electrocatalysisoxygen evolution reactionpillar[4]arene[1]quinonesingle atomstransition-metal dichalcogenides

作者：

Shuai Cao、Wenzhuo Wu、Chaozhong Liu、Leqian Song、Qun Xu、Huacheng Zhang、Yanli Zhao

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作者单位：

School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an 710049,China

Henan Institute of Advanced Technology,Zhengzhou University,Zhengzhou 450052,China

Department of Materials Science and Engineering Zhengzhou University,Zhengzhou 450001,China

School of Chemistry,Chemical Engineering and Biotechnology,Nanyang Technological University,21 Nanyang Link Singapore 637371,Singapore

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基金：

the"Young Talent Support Plan"of Xi'an Jiaotong UniversityNatural Science Foundation of Shaanxi Provincethe"Young Talent Startup Fund"Project of Zhengzhou UniversityJoint Project from the Henan ProvincialChina National Natural Science FoundationsMinistry of Education Singapore under its Academic Research FundsMinistry of Education Singapore under its Academic Research FundsMinistry of Education Singapore under its Academic Research FundsAgency for Science,Technology and Research(A*STAR)Singapore through its Manufacturing,Trade and Connectivity(MTC)Individual

项目编号：

050700-712400000000462021JM-00632212778U2004208RG3/21RG2/22RG85/22M21K2c0105

出版年：

2024

DOI：

10.1002/eem2.12702

能源与环境材料(英文)

ISSN：

年,卷(期)：2024.7(5)