首页|Core-shell heterostructure by coupling layered ReS2 with Co9S8 nanocubes for boosted oxygen evolution reaction

Core-shell heterostructure by coupling layered ReS2 with Co9S8 nanocubes for boosted oxygen evolution reaction

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
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 sulfi-dation and hydrothermal methods,and the layered ReS2 is vertically aligned on Prussian blue-derived hollow Co9S8 nanocubes(Co9S8@ReS2).The core-shell structure of Co9S8@ReS2 can effectively prevent the restacking of layered ReS2,expose the abundant surface area and improve the utilization of electro-catalytic 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,Co9S8@ReS2 exhibits ex-cellent catalytic OER performance.At 10mA/cm2,only 288 mV of overpotential is required with the Tafel slope of 73.3mV/dec for Co9S8@ReS2,which are both lower than that of Co9S8 and ReS2.Meanwhile,Co9S8@ReS2 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 cata-lysts by constructing the bimetallic heterostructure.

Oxygen evolution reactionRhenium disulfideMetal-organic frameworkHeterostructureCore-shell

Xu Yu、Zhiqiang Pan、Chengang Pei、Longjie Lin、Yanhui Lu、Ho Seok Park、Huan Pang

展开 >

School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225009,China

School of Chemical Engineering,Sungkyunkwan University,2066,Seobu-ro,Jangan-gu,Suwon-si,Gyeonggi-do 440-746,Republic of Korea

Natural Science Research of the Jiangsu Higher Education Institutions of China江苏省"六大人才高峰"高层次人才项目'High-End Talent Project'of Yangzhou University

18KJB150034XCL-103

2024

10.1016/j.cclet.2023.108484

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
  • 54