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Preparation of Hollow CeO 2 /CePO 4 with Nitrogen and Phosphorus Co‐Doped Carbon Shells for Enhanced Oxygen Reduction Reaction Catalytic Activity
Author(s) -
Yu Yue,
He Bowen,
Liao Yujia,
Yu Xiaodan,
Mu Zhongcheng,
Xing Yan,
Xing Shuangxi
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.201701341
Subject(s) - catalysis , oxygen , carbon fibers , materials science , methanol , nitrogen , pyrolysis , oxygen reduction reaction , doping , inorganic chemistry , chemical engineering , phosphorus , chemistry , organic chemistry , electrochemistry , electrode , composite material , metallurgy , optoelectronics , composite number , engineering
Achieving active and sustainable electrocatalysts for the oxygen reduction reaction with low cost and high performance attracts great interest in the field of fuel cells. Here, we report a facile route to prepare hollow CeO 2 /CePO 4 @N,P co‐doped carbon by pyrolyzing CeO 2 @polyaniline obtained in the presence of phytic acid. By virtue of the co‐doping of N and P elements as well as the existence of oxygen vacancies and the formation of a void, the product illustrated excellent catalytic activity towards the oxygen reduction reaction with onset and half‐wave potentials of 0.918 and 0.822 V, respectively, and a current density of 4.38 mA cm −2 at 0.565 V vs. RHE. Furthermore, it presented high durability and strong methanol tolerance, revealing its great potential for applications in energy conversion.