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Selenium Decorated Reduced Graphene Oxide Supported CoSe 2 Nanoparticles as Efficient Electrochemical Catalyst for the Oxygen Reduction Reaction
Author(s) -
Zhao Yuan,
Zhang Chuanxiang,
Fan Rong,
Li Jingxiu,
Hao Yanan,
He Jianping,
AlonsoVante Nicolas,
Xue Jianjun
Publication year - 2018
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201800796
Subject(s) - graphene , catalysis , oxide , methanol , electrochemistry , oxygen reduction reaction , nanoparticle , chemical engineering , selenium , materials science , oxygen , chemistry , fuel cells , inorganic chemistry , nanotechnology , electrode , organic chemistry , metallurgy , engineering
Developing efficient electrocatalysts for the oxygen reduction reaction (ORR) based on non‐precious catalytic centers is critical to improve the efficiency of low temperature fuel cells. Herein, we report on a catalyst containing CoSe 2 supported on selenium decorated reduced graphene oxide (CoSe 2 /Se‐rGO), which was synthesized via a one‐pot solvothermal method using Se‐rGO as support. Importantly, the CoSe 2 /Se‐rGO showed an enhanced catalytic activity for ORR in alkaline medium with an onset potential of 0.903 V vs. RHE and a half‐wave potential of 0.803 V vs. RHE. Its stability and methanol tolerance ability were significantly improved as compared to 20 wt% Pt/C, respectively. The strategy developed here provided a novel and efficient approach to prepare non‐precious electrocatalysts for ORR.
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