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Order of Activity of Nitrogen, Iron Oxide, and FeNx Complexes towards Oxygen Reduction in Alkaline Medium
Zhu, Yansong; Zhang, Bingsen; Wang, Da-Wei; Su, Dang Sheng; dssu@imr.ac.cn
2015
Source PublicationCHEMSUSCHEM
ISSN1864-5631
Volume8Issue:23Pages:4016-4021
AbstractIn alkaline medium, it seems that both metal-free and iron-containing carbon-based catalysts, such as nitrogen-doped nanocarbon materials, FeOx-doped carbon, and Fe/N/C catalysts, are active for the oxygen reduction reaction (ORR). However, the order of activity of these different active compositions has not been clearly determined. Herein, we synthesized nitrogen-doped carbon black (NCB), Fe3O4/CB, Fe3O4/NCB, and FeN4/CB. Through the systematic study of the ORR catalytic activity of these four catalysts in alkaline solution, we confirmed the difference in the catalytic activity and catalytic mechanism for nitrogen, iron oxides, and Fe-N complexes, respectively. In metal-free NCB, nitrogen can improve the ORR catalytic activity with a four-electron pathway. Fe3O4/CB catalyst did not exhibit improved activity over that of NCB owing to the poor conductivity and spinel structure of Fe3O4. However, FeN4 coordination compounds as the active sites showed excellent ORR catalytic activity.
description.department[zhu, yansong] anshan normal univ, sch chem & life sci, anshan 114005, liaoning, peoples r china ; [zhu, yansong ; zhang, bingsen ; su, dang sheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [wang, da-wei] univ new s wales, sch chem engn, sydney, nsw 2052, australia
KeywordCarbon Electrocatalyst Iron Nitrogen Oxygen Reduction Reaction
Funding OrganizationMOST [2011CBA00504]; NSFC of China [21133010, 21203215, 51221264, 21261160487]; 'Strategic Priority Research Program' of the Chinese Academy of Sciences [XDA09030103]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75038
Collection中国科学院金属研究所
Corresponding Authordssu@imr.ac.cn
Recommended Citation
GB/T 7714
Zhu, Yansong,Zhang, Bingsen,Wang, Da-Wei,et al. Order of Activity of Nitrogen, Iron Oxide, and FeNx Complexes towards Oxygen Reduction in Alkaline Medium[J]. CHEMSUSCHEM,2015,8(23):4016-4021.
APA Zhu, Yansong,Zhang, Bingsen,Wang, Da-Wei,Su, Dang Sheng,&dssu@imr.ac.cn.(2015).Order of Activity of Nitrogen, Iron Oxide, and FeNx Complexes towards Oxygen Reduction in Alkaline Medium.CHEMSUSCHEM,8(23),4016-4021.
MLA Zhu, Yansong,et al."Order of Activity of Nitrogen, Iron Oxide, and FeNx Complexes towards Oxygen Reduction in Alkaline Medium".CHEMSUSCHEM 8.23(2015):4016-4021.
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