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Hollow Carbon Nanocubes as Oxygen Reduction Reaction Electrocatalyst
Author(s) -
Hu Le,
Shang Chaoqun,
Wang Xin,
Zhou Guofu
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202003344
Subject(s) - electrocatalyst , carbon fibers , oxygen , electrochemistry , methanol , materials science , chemical engineering , oxygen reduction , oxygen reduction reaction , reduction (mathematics) , nitrogen , chemistry , inorganic chemistry , electrode , composite material , organic chemistry , composite number , engineering , geometry , mathematics
The sluggish oxygen reduction reaction kinetics hinders the development fuel cells, which needs effective electrocatalyst with low cost and high efficiency to realize 4 e − reduction processes. To alternate commercial Pt/C, herein, hollow carbon nanocubes were successfully prepared and evaluated as oxygen reduction electrocatalyst. Benefit from the effective abundant nitrogen species and unique hollow architecture, the hollow carbon nanocubes exhibit favorable oxygen reduction electrochemical performance with onset potential of 0.94 V, half‐wave potential of 0.82 V, and limited current density of 6.11 mA cm −2 , which are comparable to those of Pt/C. Additionally, compared to Pt/C, the HC‐800 shows expressively stability and methanol tolerance.