Synthesis of a N-doped mesoporous carbon as an efficient electrocatalyst for oxygen reduction

被引：13

作者：

Li, Xiaobao ^{[1
]}

Zou, Ruyi ^{[1
]}

Niu, Yanyan ^{[1
]}

Sun, Wei ^{[1
]}

Tian, Xinlong ^{[2
]}

机构：

[1] Hainan Normal Univ, Coll Chem & Chem Engn, Key Lab Trop Med Plant Chem, Minist Educ, Haikou 571158, Hainan, Peoples R China

[2] Huazhong Univ Sci & Technol, Key Lab Mat Chem Energy Convers & Storage, Hubei Key Lab Mat Chem & Serv Failure, Minist Educ,Sch Chem & Chem Engn,Wuhan Natl Lab O, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 48期

基金：

中国博士后科学基金;

关键词：

Mesoporous; In-situ formation of iron phthalocyanine; Oxygen reduction; Electrocatalysis; PERFORMANCE; PLATINUM; FE; NANOSHEETS; CATALYST; METAL; NANOPARTICLES; SITES;

D O I：

10.1016/j.ijhydene.2018.10.052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A facile and effective approach was developed for the preparation of mesoporous Fe-NC by pyrolyzing the mixture of FeCl2, urea, (NH4)(2)MoO2, phthalic anhydride and SBA-15, during which the in-situ formation of iron phthalocyanine is confirmed. The obtained catalyst exhibits high catalytic activity towards ORR, whose half-wave potential can be 53 mV more positive than that of commercial Pt/C catalyst. Besides, the catalyst also exhibits high selectivity of four electron path, along with excellent stability and methanol tolerance in alkaline media. Based on the characterization results, we suggest, the higher surface areas, highly porous structures induced by SBA-15 addition, as well as high graphitic N content should be the proper origins for its outstanding catalytic performance. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：21791 / 21797

页数：7