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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
发表期刊CHEMSUSCHEM
ISSN1864-5631
卷号8期号:23页码:4016-4021
摘要In 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.
部门归属[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
关键词Carbon Electrocatalyst Iron Nitrogen Oxygen Reduction Reaction
资助者MOST [2011CBA00504]; NSFC of China [21133010, 21203215, 51221264, 21261160487]; 'Strategic Priority Research Program' of the Chinese Academy of Sciences [XDA09030103]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75038
专题中国科学院金属研究所
通讯作者dssu@imr.ac.cn
推荐引用方式
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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