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Metal‐Nitrogen‐doped Porous Carbons Derived from Metal‐Containing Ionic Liquids for Oxygen Reduction Reaction
Author(s) -
Wang Cancan,
Guo Jiangna,
Xu Dan,
Zhang Juewen,
Chen Muzi,
Yan Feng
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201800127
Subject(s) - carbonization , ionic liquid , metal , carbon fibers , materials science , nitrogen , catalysis , methanol , inorganic chemistry , dopant , metal ions in aqueous solution , oxygen , porosity , chemical engineering , ionic bonding , specific surface area , doping , chemistry , organic chemistry , ion , composite material , metallurgy , scanning electron microscope , optoelectronics , composite number , engineering
This study describes a self‐doping and additive‐free strategy for the synthesis of metal‐nitrogen‐doped porous carbon materials (CMs) via carbonizing well‐tailored precursors, metal‐containing ionic liquids (M‐ILs). The organic skeleton in M‐ILs serves as both carbon and nitrogen sources, while metal ions acts as porogen and metallic dopants. A high nitrogen content, appropriate content of metallic species and hierarchical porosity synergistically endow the resultant CMs (MIBA‐M‐T) as effective electrocatalysts for the oxygen reduction reaction (ORR). MIBA‐Fe‐900 with a high specific surface area of 1567 m 2 g −1 exhibits an activity similar to that of Pt/C catalyst, a higher tolerance to methanol than Pt/C, and long‐term durability. This work supplies a simple and convenient route for the preparation of metal‐containing carbon electrocatalysts.