TY - JOUR
T1 - Photoelectrochemical solar water splitting using electrospun TiO 2 nanofibers
AU - Mali, Mukund G.
AU - An, Seongpil
AU - Liou, Minho
AU - Al-Deyab, Salem S.
AU - Yoon, Sam S.
N1 - Funding Information:
This work was supported by the Human Resources Development program (No. 20124030200120 ) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy . This research was also supported by Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) of the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning ( 2013M3A6B1078879 ). The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-089 .
Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2015/2/15
Y1 - 2015/2/15
N2 - TiO 2 nano-fibrous films of thicknesses ranging from 0.17 to 3.24 μm were prepared on an indium-doped tin oxide substrate using an electrospinning technique for which the spinning time was varied from 5 to 60 min. The structural and morphological aspects were studied by means of XRD, Raman, and SEM analyses. The photoelectrochemical (PEC) properties of the films were tested by performing current-potential measurements. The optimal PEC performance was explored by varying the experimental conditions, specifically, the spinning time (5-60 min) and the annealing temperature (300, 500, and 700°C). A comparison of the PEC performance of all the NF film thicknesses (0.17, 0.31, 1.53, 2.16, 4.67, and 7.53 μm) revealed that a thickness of 4.67 μm, that is, a film formed by electrospinning over a duration of 45 min, exhibited the optimum level of PEC performance. This film generated a photocurrent of around 150 μA/cm 2 , which was larger than the PEC values produced by the other films. The PEC performance of the 7.53-μm TiO 2 NF film (produced by coating for 60 min) was found to be inferior to that of all the other thicknesses.
AB - TiO 2 nano-fibrous films of thicknesses ranging from 0.17 to 3.24 μm were prepared on an indium-doped tin oxide substrate using an electrospinning technique for which the spinning time was varied from 5 to 60 min. The structural and morphological aspects were studied by means of XRD, Raman, and SEM analyses. The photoelectrochemical (PEC) properties of the films were tested by performing current-potential measurements. The optimal PEC performance was explored by varying the experimental conditions, specifically, the spinning time (5-60 min) and the annealing temperature (300, 500, and 700°C). A comparison of the PEC performance of all the NF film thicknesses (0.17, 0.31, 1.53, 2.16, 4.67, and 7.53 μm) revealed that a thickness of 4.67 μm, that is, a film formed by electrospinning over a duration of 45 min, exhibited the optimum level of PEC performance. This film generated a photocurrent of around 150 μA/cm 2 , which was larger than the PEC values produced by the other films. The PEC performance of the 7.53-μm TiO 2 NF film (produced by coating for 60 min) was found to be inferior to that of all the other thicknesses.
KW - Electrospinning
KW - Photo current density
KW - TiO nanofibers
KW - Water splitting
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U2 - 10.1016/j.apsusc.2014.12.022
DO - 10.1016/j.apsusc.2014.12.022
M3 - Article
AN - SCOPUS:84922252310
SN - 0169-4332
VL - 328
SP - 109
EP - 114
JO - Applied Surface Science
JF - Applied Surface Science
ER -
