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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
Source PublicationCHEMSUSCHEM
ISSN1864-5631
Volume8Issue:19Pages:3331-3339
AbstractNon-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.
description.department[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
KeywordElectrocatalysts Graphene Interface Structure Metal Oxide Oxygen Reduction Reaction
Funding OrganizationUniversity 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
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75134
Collection中国科学院金属研究所
Corresponding Authorda-wei.wang@unsw.edu.au
Recommended Citation
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.
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