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dc.contributor.authorIsimjan, Tayirjan T.
dc.contributor.authorTrifkovic, Milana
dc.contributor.authorAbdullahi, Inusa
dc.contributor.authorRohani, Sohrab M F
dc.contributor.authorRay, Ajay
dc.date.accessioned2015-08-03T12:19:50Z
dc.date.available2015-08-03T12:19:50Z
dc.date.issued2014-12-19
dc.identifier.issn10225528
dc.identifier.doi10.1007/s11244-014-0350-0
dc.identifier.urihttp://hdl.handle.net/10754/563927
dc.description.abstractHighly ordered nitrogen-doped titanium dioxide (N-doped TiO2) nanotube array films with enhanced photo-electrochemical water splitting efficiency (PCE) for hydrogen generation were fabricated by electrochemical anodization, followed by annealing in a nitrogen atmosphere. Morphology, structure and composition of the N-doped TiO2 nanotube array films were investigated by FE-SEM, XPS, UV-Vis and XRD. The effect of annealing temperature, heating rate and annealing time on the morphology, structure, and photo-electrochemical property of the N-doped TiO2 nanotube array films were investigated. A design of experiments method was applied in order to minimize the number of experiments and obtain a statistical model for this system. From the modelling results, optimum values for the influential factors were obtained in order to achieve the maximum PCE. The optimized experiment resulted in 7.42 % PCE which was within 95 % confidence interval of the predicted value by the model. © 2014 Springer Science+Business Media.
dc.description.sponsorshipThe financial support from NSERC and the Western University, London, Ontario are gratefully acknowledged. The authors also thank the Surface Science Western for excellent contribution on the characterization, Mr. Chris Van deLaar of Western University machine services for his brilliant idea on equipment design.
dc.publisherSpringer Nature
dc.subjectAnodization
dc.subjectDesign of experiments (DOE)
dc.subjectOptimization
dc.subjectPhotoelectrochemical water splitting efficiency (PCE)
dc.subjectTiO<inf>2</inf> nanotubes
dc.subjectUV irradiation
dc.titleNanoscale Optimization and Statistical Modeling of Photoelectrochemical Water Splitting Efficiency of N-Doped TiO2 Nanotubes
dc.typeArticle
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalTopics in Catalysis
dc.contributor.institutionDepartment of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NWCalgary, AB, Canada
dc.contributor.institutionDepartment of Chemical and Biochemical Engineering, Western UniversityLondon, ON, Canada
kaust.personIsimjan, Tayirjan T.


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