摘要
Highly active electrocatalysts based on Layered Double Hydroxides(LDH)towards oxygen evolution reactions(OER)are required for the applications of renewable energy-conversion technology.The improvement of conductivity and electron-transporting capability for LDH materials remains an enormous challenge yet.Here,we synthesized carbon nanotube supported quaternary FeCoNiW-LDH ultrathin nanosheets with 1 nm thickness via one-pot hydrothermal methods,which exhibit enhanced OER activity due to the synergistic effect of modified CNTs and doped W^6+onto LDH nanosheets catalysts.The loaded carbon nanotubes can directly result in the improved conductivity.In addition,W^6+doping in LDH can modify the electronic structure and further enhance the conductivity of electrocatalysts.FeCoNiW-LDH/CNT exhibits a small overpotential(258 mV)at a current density of 10 mA·cm^–2 and low Tafel slope(41 mV decade^–1)towards OER in alkaline solutions,outperforming the noble metal RuO2 catalysts.
作者
FU Chang-Le
WANG Yi
HUANG Jun-Heng
付长乐;王怡;黄钧衡(Fujian Normal University,Fuzhou 350007,China;CAS Key Laboratory of Design and Assembly of Functional Nano-structures,Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China)
基金
National Postdoctoral Program for Innovative Talents of China(No.BX201600164)
the National Natural Science Foundation of China(Nos 21701175)。
作者简介
Corresponding authors:王怡.E-mails:ywang@fjnu.edu.cn;Corresponding authors:黄钧衡.E-mails:huangjunheng@fjirsm.ac.cn。
