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dc.contributor.authorPalaniselvam, Thangavelu
dc.contributor.authorShi, Le
dc.contributor.authorMettela, Gangaiah
dc.contributor.authorAnjum, Dalavar H.
dc.contributor.authorLi, Renyan
dc.contributor.authorKaturi, Krishna
dc.contributor.authorSaikaly, Pascal
dc.contributor.authorWang, Peng
dc.date.accessioned2017-10-03T12:49:36Z
dc.date.available2017-10-03T12:49:36Z
dc.date.issued2017-08-07
dc.identifier.citationPalaniselvam T, Shi L, Mettela G, Anjum DH, Li R, et al. (2017) Vastly Enhanced BiVO4 Photocatalytic OER Performance by NiCoO2 as Cocatalyst. Advanced Materials Interfaces 4: 1700540. Available: http://dx.doi.org/10.1002/admi.201700540.
dc.identifier.issn2196-7350
dc.identifier.doi10.1002/admi.201700540
dc.identifier.urihttp://hdl.handle.net/10754/625725
dc.description.abstractHere, a simple and efficient preparation of NiCoO nanoparticle modified nanoporous bismuth vanadate (BiVO) thin film and its application in photoelectrocatalytic (PEC) oxygen evolution reaction (OER) is demonstrated. The role of NiCoO in the composite electrode (BiVO/NiCoO) is twofold: OER cocatalyst and band structure modifier. It improves surface reaction kinetics for PEC OER and enhances charge separation efficiency simultaneously, which is believed to be a determining factor for the unprecedentedly high PEC OER performance of this BiVO/NiCoO nanocomposite. The photocurrent density of 3.6 mA cm at 1.23 V versus RHE in 0.1 m potassium phosphate buffered (pH = 7) electrolyte by BiVO/NiCoO is three times that of BiVO and significantly higher than most literature values. The BiVO/NiCoO nanocomposite shows/possess a high charge separation efficiency (η) of ≈72% as compared to only 23% for pure nanoporous BiVO at 1.23 V versus RHE, which demonstrates convincing role of NiCoO in the composite electrode. Both the excellent photocurrent density and great operational stability of this BiVO/NiCoO nanocomposite makes it a promising photocatalytic material for practical applications.
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST) center competitive fund (CCF) fund awarded to Water Desalination and Reuse Center (WDRC). The authors are grateful to the other members of the KAUST Environmental Nanotechnology group for the helpful discussions.
dc.publisherWiley-Blackwell
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/admi.201700540/full
dc.rightsThis is the peer reviewed version of the following article: Vastly Enhanced BiVO4 Photocatalytic OER Performance by NiCoO2 as Cocatalyst, which has been published in final form at http://doi.org/10.1002/admi.201700540. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.subjectBiVO4
dc.subjectCocatalysts
dc.subjectNi-Co oxides
dc.subjectOxygen evolution reaction
dc.subjectPhotoelectrocatalysts
dc.titleVastly Enhanced BiVO4 Photocatalytic OER Performance by NiCoO2 as Cocatalyst
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentImaging and Characterization Core Lab
dc.identifier.journalAdvanced Materials Interfaces
dc.eprint.versionPost-print
kaust.personPalaniselvam, Thangavelu
kaust.personShi, Le
kaust.personMettela, Gangaiah
kaust.personAnjum, Dalavar H.
kaust.personLi, Renyan
kaust.personKaturi, Krishna
kaust.personSaikaly, Pascal
kaust.personWang, Peng


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