caa a22 4500 606173935 CHVBK 20210128100735.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s11244-014-0350-0 doi (NATIONALLICENCE)springer-10.1007/s11244-014-0350-0 Nanoscale Optimization and Statistical Modeling of Photoelectrochemical Water Splitting Efficiency of N-Doped TiO2 Nanotubes [Elektronische Daten] [Tayirjan Isimjan, Milana Trifkovic, Inusa Abdullahi, Sohrab Rohani, Ajay Ray] Highly 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. Springer Science+Business Media New York, 2014 TiO2 nanotubes nationallicence Photoelectrochemical water splitting efficiency (PCE) nationallicence UV irradiation nationallicence Anodization nationallicence Design of experiments (DOE) nationallicence Optimization nationallicence Isimjan Tayirjan Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Center, King Abdullah University of Science and Technology (KAUST), 23955-6900, Thuwal, Saudi Arabia aut Trifkovic Milana Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, T2N 1N4, Calgary, AB, Canada aut Abdullahi Inusa Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut Rohani Sohrab Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut Ray Ajay Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut Topics in Catalysis Springer US; http://www.springer-ny.com 58/2-3(2015-03-01), 114-122 1022-5528 58:2-3<114 2015 58 11244 https://doi.org/10.1007/s11244-014-0350-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-014-0350-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Isimjan Tayirjan Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Center, King Abdullah University of Science and Technology (KAUST), 23955-6900, Thuwal, Saudi Arabia aut NATIONALLICENCE 700 1- Trifkovic Milana Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, T2N 1N4, Calgary, AB, Canada aut NATIONALLICENCE 700 1- Abdullahi Inusa Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut NATIONALLICENCE 700 1- Rohani Sohrab Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut NATIONALLICENCE 700 1- Ray Ajay Department of Chemical and Biochemical Engineering, Western University, N6A 5B9, London, ON, Canada aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/2-3(2015-03-01), 114-122 1022-5528 58:2-3<114 2015 58 11244