Core-shell heterostructure by coupling layered ReS_(2) with Co_(9)S_(8) nanocubes for boosted oxygen evolution reaction  

作　　者：Xu Yu Zhiqiang Pan Chengang Pei Longjie Lin Yanhui Lu Ho Seok Park Huan Pang 

机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225009,China [2]School of Chemical Engineering,Sungkyunkwan University,2066,Seobu-ro,Jangan-gu,Suwon-si,Gyeonggi-do 440-746,Republic of Korea

出　　处：《Chinese Chemical Letters》2024年第3期518-522,共5页中国化学快报（英文版）

基　　金：supported by the Natural Science Research of the Jiangsu Higher Education Institutions of China(No.18KJB150034);Six Talent Peaks Project of Jiangsu Province(No.XCL-103);‘High-End Talent Project’of Yangzhou University。

摘　　要：The controllable morphology and composition of catalysts are crucial to improving the electrocatalytic activity of oxygen evolution reaction(OER).Herein,we construct a bimetallic heterostructure by sulfidation and hydrothermal methods,and the layered ReS_(2)is vertically aligned on Prussian blue-derived hollow Co_(9)S_(8)nanocubes(Co_(9)S_(8)@ReS_(2)).The core-shell structure of Co_(9)S_(8)@ReS_(2)can effectively prevent the restacking of layered ReS_(2),expose the abundant surface area and improve the utilization of electrocatalytic sites,resulting in fast electrolyte diffusion and charge transfer during OER.Due to the synergistic effect of the core-shell morphology and the formed bimetallic heterostructure,Co_(9)S_(8)@ReS_(2)exhibits excellent catalytic OER performance.At 10 mA/cm^(2),only 288 mV of overpotential is required with the Tafel slope of 73.3 mV/dec for Co_(9)S_(8)@ReS_(2),which are both lower than that of Co_(9)S_(8)and ReS_(2).Meanwhile,Co_(9)S_(8)@ReS_(2)exhibits high catalytic stability and low charge transfer resistance and the boosted active sites are confirmed by density functional theory.This work provides a rational design of the OER catalysts by constructing the bimetallic heterostructure.

关 键 词：Oxygen evolution reaction Rhenium disulfide Metal-organic framework HETEROSTRUCTURE CORE-SHELL 

分 类 号：TQ426[化学工程] TQ116.2[一般工业技术—材料科学与工程] TB383.1