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Metal–Organic Framework‐Derived FeCo‐N‐Doped Hollow Porous Carbon Nanocubes for Electrocatalysis in Acidic and Alkaline Media
Author(s) -
Fang Xinzuo,
Jiao Long,
Yu ShuHong,
Jiang HaiLong
Publication year - 2017
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201700864
Subject(s) - electrocatalyst , pyrolysis , metal organic framework , materials science , porosity , chemical engineering , carbon fibers , catalysis , porphyrin , doping , inorganic chemistry , porous medium , metal , nanotechnology , chemistry , electrochemistry , organic chemistry , composite number , electrode , composite material , metallurgy , adsorption , engineering , optoelectronics
Metal–organic frameworks (MOFs) are ideal precursors/ templates for porous carbons with homogeneous doping of active components for energy storage and conversion applications. Herein, metalloporphyrinic MOFs, PCN‐224‐FeCo, with adjustable molar ratio of Fe II /Co II alternatively residing inside the porphyrin center, were employed as precursors to afford FeCo‐N‐doped porous carbon (denoted as FeCo‐NPC) by pyrolysis. Thanks to the hollow porous structure, the synergetic effect between highly dispersed FeN x and CoN x active sites accompanied with a high degree of graphitization, the optimized FeCo 2 ‐NPC‐900 obtained by pyrolysis at 900 °C exhibits more positive half‐wave potential, higher diffusion‐limited current density, and better stability than the state‐of‐the‐art Pt/C, under both alkaline and acidic media. More importantly, the current synthetic approach based on MOFs offers a rational strategy to structure‐ and composition‐controlled porous carbons for efficient electrocatalysis.