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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.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.publisherRoyal Society of Chemistry
dc.relation.ispartofjournalJournal of Materials Chemistry A
dc.subject.fieldofresearchMacromolecular and Materials Chemistry
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchInterdisciplinary Engineering
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
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
gro.hasfulltextNo Full Text
gro.griffith.authorOstrikov, Kostya (Ken)

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