Structural Origin of the Activity in Mn3O4-Graphene Oxide Hybrid Electrocatalysts for the Oxygen Reduction Reaction

IMR OpenIR

	Structural Origin of the Activity in Mn3O4-Graphene Oxide Hybrid Electrocatalysts for the Oxygen Reduction Reaction
	Wu, Kuang-Hsu; Zeng, Qingcong; Zhang, Bingsen; Leng, Xue; Su, Dang-Sheng; Gentle, Ian R.; Wang, Da-Wei; da-wei.wang@unsw.edu.au
	2015
发表期刊	CHEMSUSCHEM
ISSN	1864-5631
卷号	8 期号:19 页码:3331-3339
摘要	Non-precious metal oxide/carbon hybrid electrocatalysts are of increasing importance for the oxygen reduction reaction (ORR). A synergistic effect is commonly used to explain the superior ORR activity exerted by metal oxide/nanocarbon hybrids, and this effect is attributed to covalently coupled interfaces between the two materials. However, the origin of the high activity, the structure, and the electrocatalytic nature of the interface remain unclear. By combining X-ray photoelectron spectroscopy with synchrotron far-infrared spectroscopy, we resolved the interface structure between spinel manganese oxide nanocrystals and graphene oxide nanoribbons, and the role of this interface in the promoted ORR. Moreover, we demonstrated the excellent ORR activity by a functional synergism of the hybrid constituents through a series of comparative electrochemical experiments.
部门归属	[wu, kuang-hsu ; zeng, qingcong ; leng, xue ; gentle, ian r. ; wang, da-wei] univ queensland, sch chem & mol biosci, brisbane, qld 4072, australia ; [wang, da-wei] univ new s wales, sch chem engn, sydney, nsw 2052, australia ; [zhang, bingsen ; su, dang-sheng] chinese acad sci, shengyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词	Electrocatalysts Graphene Interface Structure Metal Oxide Oxygen Reduction Reaction
资助者	University of Queensland; University of New South Wales Australia; Australian Research Council Discovery Project; Australian Synchrotron; Centre for Microscopy and Microanalysis at the University of Queensland
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/321006/75134
专题	中国科学院金属研究所
通讯作者	da-wei.wang@unsw.edu.au
推荐引用方式 GB/T 7714	Wu, Kuang-Hsu,Zeng, Qingcong,Zhang, Bingsen,et al. Structural Origin of the Activity in Mn3O4-Graphene Oxide Hybrid Electrocatalysts for the Oxygen Reduction Reaction[J]. CHEMSUSCHEM,2015,8(19):3331-3339.
APA	Wu, Kuang-Hsu.,Zeng, Qingcong.,Zhang, Bingsen.,Leng, Xue.,Su, Dang-Sheng.,...&da-wei.wang@unsw.edu.au.(2015).Structural Origin of the Activity in Mn3O4-Graphene Oxide Hybrid Electrocatalysts for the Oxygen Reduction Reaction.CHEMSUSCHEM,8(19),3331-3339.
MLA	Wu, Kuang-Hsu,et al."Structural Origin of the Activity in Mn3O4-Graphene Oxide Hybrid Electrocatalysts for the Oxygen Reduction Reaction".CHEMSUSCHEM 8.19(2015):3331-3339.