Ultrafine iron oxide nanoparticles supported on N-doped carbon black as an oxygen reduction reaction catalyst

被引：30

作者：

Ma, Yanjiao ^{[1
]}

Wang, Hui ^{[1
]}

Key, Julian ^{[2
]}

Linkov, Vladimir ^{[2
]}

Ji, Shan ^{[2
]}

Mao, Xuefeng ^{[1
]}

Wang, Qizhao ^{[1
]}

Wang, Rongfang ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Chem & Chem Engn, Lanzhou 730070, Peoples R China

[2] Univ Western Cape, South African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 27期

关键词：

Ultrafine nanoparticle; Iron oxide; Electrocatalyst; Oxygen reduction reaction; GRAPHENE; ELECTROCATALYSTS; COMPOSITE; FE3O4; ORR;

D O I：

10.1016/j.ijhydene.2014.07.108

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：

An oxygen reduction reaction (ORR) catalyst comprising ultrafine iron oxide nanoparticles supported on N-doped Vulcan carbon (FeO1.4/N-C) was prepared via a two-step method. X-ray photoelectron spectroscopy revealed the iron oxide nanoparticles comprised Fe2O3 and FeO phases with a combined average oxidation state of 2.8. The FeO1.4/N-C catalyst produced an ORR onset potential of -0.056 V and a half-wave potential of -0.190 V in alkaline media, which was comparable to that of commercial Pt/C catalyst. Moreover, FeO1.4/N-C had higher methanol tolerance than Pt/C catalyst and thus affords a promising non-precious metal ORR catalyst for fuel cells. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：14777 / 14782

页数：6

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