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Fe 3 C‐Co Nanoparticles Encapsulated in a Hierarchical Structure of N‐Doped Carbon as a Multifunctional Electrocatalyst for ORR, OER, and HER
Author(s) -
Yang Chun Cheng,
Zai Shi Feng,
Zhou Yi Tong,
Du Li,
Jiang Qing
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201901949
Subject(s) - electrocatalyst , materials science , oxygen evolution , catalysis , carbon fibers , chemical engineering , nanoparticle , nanoporous , water splitting , nanotechnology , mesoporous material , noble metal , metal , electrochemistry , composite number , electrode , chemistry , organic chemistry , composite material , photocatalysis , metallurgy , engineering
Rational design of non‐noble metal catalysts with robust and durable electrocatalytic activity for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) is extremely important for renewable energy conversion and storage, regenerative fuel cells, rechargeable metal–air batteries, water splitting etc. In this work, a unique hybrid material consisting of Fe 3 C and Co nanoparticles encapsulated in a nanoporous hierarchical structure of N‐doped carbon (Fe 3 C‐Co/NC) is fabricated for the first time via a facile template‐removal method. Such an ingenious structure shows great features: the marriage of 1D carbon nanotubes and 2D carbon nanosheets, abundant active sites resulting from various active species of Fe 3 C, Co, and NC, mesoporous carbon structure, and intimate integration among Fe 3 C, Co, and NC. As a multifunctional electrocatalyst, the Fe 3 C‐Co/NC hybrid exhibits excellent performance for ORR, OER, and HER, outperforming most of reported triple functional electrocatalysts. This study provides a new perspective to construct multifunctional catalysts with well‐designed structure and superior performance for clean energy conversion technologies.