Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (9): 2354-2362.DOI: 10.1016/S1872-2067(21)63916-5

• Special column on renewable fuel synthesis by photocatalysis and photoelectrocatalysis • Previous Articles     Next Articles

Multiple carbon interface engineering to boost oxygen evolution of NiFe nanocomposite electrocatalyst

Yuyan Qiaoa,b,, Yanqiu Pana,, Jiangwei Zhangb, Bin Wangb, Tingting Wub, Wenjun Fanb, Yucheng Caob, Rashid Mehmoodb, Fei Zhangb, Fuxiang Zhangb,*()   

  1. aSchool of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
    bState Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China
  • Received:2021-07-01 Accepted:2021-08-05 Online:2022-09-18 Published:2022-07-20
  • Contact: Fuxiang Zhang
  • About author:First author contact:

    †Contributed equally to this work.

  • Supported by:
    National Key Research and Development Program of China(2020YFA0406102);National Natural Science Foundation of China(21925206);National Natural Science Foundation of China(21633009);International Partnership Program of Chinese Academy of Sciences(121421KYSB20190025);Dalian National Laboratory for Clean Energy (DNL) Cooperation Fund, Chinese Academy of Sciences(DNL 201913);DICP foundation of innovative research(DICP I201927);Liaoning Revitalization Talents Program(XLYC1807241)

Abstract:

Interface engineering has been widely investigated to regulate the structure and performance of electrodes and photoelectrodes, but the investigation of multiple carbon interface modifications on the electrocatalytic oxygen evolution reaction (OER) is still shortage. Herein, we report remarkable promotion of OER performance on the NiFe-based nanocomposite electrocatalyst via the synergy of multiple carbon-based interface engineering. Specifically, carbon nanotubes were in situ grown on carbon fiber paper to improve the interface between CFP and NiFeOxHy, and graphite carbon nanoparticles were in situ loaded and partly doped into the NiFeOxHy to modify the intergranular interface charge transfer and electronic structure of NiFeOxHy. Consequently, the as-obtained NiFeOxHy-C/CNTs/CFP catalyst exhibited significantly enhanced electrocatalytic OER activity with an overpotential of 202 mV at 10 mA cm-2 in 1 mol L-1 KOH. Our work not only extends application of carbon materials but also provides an alternative strategy to develop highly efficient electrocatalysts.

Key words: Electrocatalyst, Oxygen evolution reaction, Interface engineering, Carbon nanotube, Nanocomposite