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Mo 0.42 C 0.58 Nanoparticles Embedded in Nitrogen‐Doped Carbon as Electrocatalyst towards Oxygen Reduction Reaction
Author(s) -
Wang Hongru,
Yu Yue,
Wei Jiatong,
Yu Xiaodan,
Chen Gang,
Ma Jicheng,
Xing Shuangxi
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800745
Subject(s) - electrocatalyst , polypyrrole , catalysis , carbonization , carbon fibers , materials science , methanol , nanoparticle , nanocomposite , nitrogen , inorganic chemistry , hydrogen , oxygen , electrochemistry , nuclear chemistry , chemistry , nanotechnology , electrode , organic chemistry , composite number , composite material , scanning electron microscope
Highly dispersible Mo 0.42 C 0.58 nanoparticles in nitrogen‐doped carbon is achieved via pyrolyzing one‐dimensional NH 4 Ni 2 Mo 2 O 8 (OH)H 2 O@polypyrrole nanocomposites. The formation of the Mo 0.42 C 0.58 is realized via the reaction between the NH 4 Ni 2 Mo 2 O 8 (OH)H 2 O nanorod as core and the carbonized polypyrrole at a high temperature. The Mo 0.42 C 0.58 @N‐doped carbon presents satisfied catalytic activity towards oxygen reduction reaction with the half‐wave potential of 0.828 V vs. RHE (reversible hydrogen electrode), comparable to that of the commercial Pt/C catalyst. Furthermore, the sample illustrates superior stability and methanol tolerance to Pt/C. The excellent catalytic activity of the Mo 0.42 C 0.58 @N‐doped carbon can be attributed to the existence of Mo 0.42 C 0.58 nanoparticles, the N doping in carbonized polypyrrole, and the well‐maintained one‐dimensional nanostructure.