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dc.contributor.authorDou, Yuhai
dc.contributor.authorLiao, Ting
dc.contributor.authorMa, Zongqing
dc.contributor.authorTian, Dongliang
dc.contributor.authorLiu, Qiannan
dc.contributor.authorXiao, Feng
dc.contributor.authorSun, Ziqi
dc.contributor.authorKim, Jung Ho
dc.contributor.authorDou, Shi Xue
dc.date.accessioned2021-09-23T23:13:13Z
dc.date.available2021-09-23T23:13:13Z
dc.date.issued2016
dc.identifier.issn2211-2855
dc.identifier.doi10.1016/j.nanoen.2016.10.020
dc.identifier.urihttp://hdl.handle.net/10072/408308
dc.description.abstractCo3O4 nanosheets with a graphene-like holey structure are successfully synthesized through a bottom-up self-assembly approach and utilized as a catalyst for the oxygen evolution reaction (OER). This unique nanostructure possesses a large fraction of low-coordinated surface atoms and highly accessible surface areas due to its atomic thickness and mesoporosity, which could provide abundant active sites and facilitate the electrode/electrolyte contact for OER catalysis. In addition, density functional theory (DFT) calculations reveal that the loss of the neighboring layers gives the ultrathin nanostructure remarkable lattice distortion, which leads to decreased energy barriers for facile mass conversion and transfer on the surface of the catalyst. As a result, the graphene-like holey Co3O4 nanosheets exhibit excellent OER catalytic performance with low onset potential of 0.617 V vs. Hg/HgO, high current density of 12.26 mA cm-2 at 0.8 V vs. Hg/HgO, and long-term stability with negligible fading in current density after 2000 cycles, significantly outperforming the performances of conventional Co3O4 nanostructures and commercial IrO2. This unique graphene-like holey structure should be of great benefit for applications ranging from electronic devices to energy conversion and storage systems.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofpagefrom267
dc.relation.ispartofpageto275
dc.relation.ispartofjournalNano Energy
dc.relation.ispartofvolume30
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchNanotechnology
dc.subject.fieldofresearchcode3403
dc.subject.fieldofresearchcode4016
dc.subject.fieldofresearchcode4018
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsTechnology
dc.subject.keywordsChemistry, Physical
dc.subject.keywordsNanoscience & Nanotechnology
dc.titleGraphene-like holey Co3O4 nanosheets as a highly efficient catalyst for oxygen evolution reaction
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationDou, Y; Liao, T; Ma, Z; Tian, D; Liu, Q; Xiao, F; Sun, Z; Kim, JH; Dou, SX, Graphene-like holey Co3O4 nanosheets as a highly efficient catalyst for oxygen evolution reaction, Nano Energy, 2016, 30, pp. 267-275
dc.date.updated2021-09-23T23:04:00Z
gro.hasfulltextNo Full Text
gro.griffith.authorDou, Yuhai


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