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dc.contributor.authorChen, Wenxia
dc.contributor.authorZhang, Yiwei
dc.contributor.authorHuang, Rong
dc.contributor.authorZhou, Yuming
dc.contributor.authorWu, Yangjin
dc.contributor.authorHu, Yingjie
dc.contributor.authorOstrikov, Kostya Ken
dc.date.accessioned2019-10-14T03:42:05Z
dc.date.available2019-10-14T03:42:05Z
dc.date.issued2019
dc.identifier.issn2050-7488
dc.identifier.doi10.1039/c9ta00070d
dc.identifier.urihttp://hdl.handle.net/10072/388368
dc.description.abstractDevelopment of highly efficient and low-cost electrocatalysts for the oxygen evolution reaction (OER) with high electrical conductivity and chemical stability is critical for various energy conversion devices and systems, yet still remains a formidable challenge. Herein, we develop a novel porous 3D hybrid nanostructure decorated with nickel cobalt layered double hydroxides (NiCo LDHs) on the surface of the functional ZIF-67 template with rich oxygen vacancies (VO) etched by O2–Ar radio frequency (RF) plasma. The as-prepared NiCo LDH@ZIF-67-VO/NF hybrid materials exhibit excellent OER performance evidenced by the competitive potential of 1.52 V at the current density of 10 mA cm−2 in alkaline medium. Moreover, the Tafel slope of 58 mV dec−1 is much lower compared to that of noble metal oxide and other counterpart catalysts. Our experimental and theoretical calculation results reveal that incorporation of VO into the NiCo LDH@ZIF-67-VO/NF composite can efficiently tune the electronic structure and also increase the water adsorption energy, ultimately accelerating the OER process. The work presents a novel strategy for designing highly efficient composite electrode materials with rich oxygen vacancies for the effective, scalable electrocatalytic water oxidation.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofpagefrom4950
dc.relation.ispartofpageto4959
dc.relation.ispartofissue9
dc.relation.ispartofjournalJournal of Materials Chemistry A
dc.relation.ispartofvolume7
dc.subject.fieldofresearchMacromolecular and Materials Chemistry
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchInterdisciplinary Engineering
dc.subject.fieldofresearchcode0303
dc.subject.fieldofresearchcode0912
dc.subject.fieldofresearchcode0915
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsTechnology
dc.subject.keywordsChemistry, Physical
dc.subject.keywordsEnergy & Fuels
dc.titleNi-Co hydroxide nanosheets on plasma-reduced Co-based metal-organic nanocages for electrocatalytic water oxidation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationChen, W; Zhang, Y; Huang, R; Zhou, Y; Wu, Y; Hu, Y; Ostrikov, KK, Ni-Co hydroxide nanosheets on plasma-reduced Co-based metal-organic nanocages for electrocatalytic water oxidation, Journal of Materials Chemistry A, 2019, 7 (9), pp. 4950-4959
dc.date.updated2019-10-14T03:40:45Z
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Kostya (Ken)


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