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Pyrolysis of Animal Bones with Vitamin B12: A Facile Route to Efficient Transition Metal–Nitrogen–Carbon (TM‐ N ‐C) Electrocatalysts for Oxygen Reduction
Author(s) -
Dou Meiling,
He Duanpeng,
Shao Wenhao,
Liu Haijing,
Wang Feng,
Dai Liming
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201504983
Subject(s) - pyrolysis , catalysis , carbon fibers , nitrogen , methanol , electrolyte , materials science , cobalt , transition metal , chemical engineering , specific surface area , inorganic chemistry , porosity , chemistry , electrode , organic chemistry , composite material , composite number , engineering
By pyrolyzing cattle bones, hierarchical porous carbon (HPC) networks with a high surface area (2520 m 2 g −1 ) and connected pores were prepared at a low cost and large scale. Subsequent co‐pyrolysis of HPC with vitamin B12 resulted in the formation of three‐dimensional (3D) hierarchically structured porous cobalt–nitrogen–carbon (Co‐ N ‐HPC) electrocatalysts with a surface area as high as 859 m 2 g −1 as well as a higher oxygen reduction reaction (ORR) electrocatalytic activity, better operation stability, and higher tolerance to methanol than the commercial Pt/C catalyst in alkaline electrolyte.