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Title of Journal: Top Catal

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Abbravation: Topics in Catalysis

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Springer US

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DOI

10.1002/macp.1984.021850301

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1572-9028

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Nanoscale Optimization and Statistical Modeling of

Authors: Tayirjan T Isimjan Milana Trifkovic Inusa Abdullahi Sohrab Rohani Ajay K Ray
Publish Date: 2014/12/19
Volume: 58, Issue: 2-3, Pages: 114-122
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Abstract

Highly ordered nitrogendoped titanium dioxide Ndoped TiO2 nanotube array films with enhanced photoelectrochemical 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 Ndoped TiO2 nanotube array films were investigated by FESEM XPS UV–Vis and XRD The effect of annealing temperature heating rate and annealing time on the morphology structure and photoelectrochemical property of the Ndoped 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 742  PCE which was within 95  confidence interval of the predicted value by the modelThe 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

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