Solar water oxidation in sputter-deposited nanocrystalline WO3 photoanodes via tuning of Ar:O2 flow rate combinations
作者： Siao Li Liew , Wei Wang , Surani Bin Dolmanan , Glen Tai Wei Goh , Dongzhi Chi
DOI: 10.1016/J.MATCHEMPHYS.2013.11.018
关键词: Volumetric flow rate 、 Materials science 、 Monoclinic crystal system 、 Analytical chemistry 、 Nanocrystalline material 、 Thin film 、 Sputtering 、 Oxygen 、 Photocurrent 、 Electrolyte
摘要: Abstract Thin film WO 3 photoanodes were prepared by reactive sputtering in Ar and O 2 gas mixtures of various flow rate combinations. Furnace annealed films nanocrystalline monoclinic with (002), (020) (200) plane orientations. Water oxidation 0.33 M H SO 4 electrolyte under simulated solar illumination showed that deposited highest combinations exhibited photocurrent 4.1 mA cm −2 (at 1.3 V vs Ag/AgCl) compared to 3–3.8 mA cm for lower The higher photocurrents ascribed bulk resistivity charge transfer resistance at the /electrolyte interface. These consisted randomly oriented planes contrast preferentially orientated (002) which highly resistive poorer responses. results interpreted terms effects Ar:O on distribution oxygen vacancies formation crystallographic shear sputtered films.
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sci-hub.se 参考文章(33)
G. A. de Wijs, R. A. de Groot, Structure and electronic properties of amorphous WO3 Physical Review B. ,vol. 60, pp. 16463- 16474 ,(1999) , 10.1103/PHYSREVB.60.16463
D. J. Dyson, S. R. Keown, K. W. Andrews, Interpretation of Electron Diffraction Patterns ,(1967)
Se-Hee Lee, Hyeonsik M. Cheong, Ji-Guang Zhang, Angelo Mascarenhas, David K. Benson, Satyen K. Deb, Electrochromic mechanism in a-WO3−y thin films Applied Physics Letters. ,vol. 74, pp. 242- 244 ,(1999) , 10.1063/1.123268
Won Jae Lee, Pravin S. Shinde, Guen Ho Go, Easwaramoorthi Ramasamy, Ag grid induced photocurrent enhancement in WO3 photoanodes and their scale-up performance toward photoelectrochemical H2 generation International Journal of Hydrogen Energy. ,vol. 36, pp. 5262- 5270 ,(2011) , 10.1016/J.IJHYDENE.2011.02.013
Zhihui Jiao, Jinmin Wang, Lin Ke, Xiao Wei Sun, Hilmi Volkan Demir, Morphology-Tailored Synthesis of Tungsten Trioxide (Hydrate) Thin Films and Their Photocatalytic Properties ACS Applied Materials & Interfaces. ,vol. 3, pp. 229- 236 ,(2011) , 10.1021/AM100875Z
Brian Cole, Bjorn Marsen, Eric Miller, Yanfa Yan, Bobby To, Kim Jones, Mowafak Al-Jassim, Evaluation of Nitrogen Doping of Tungsten Oxide for Photoelectrochemical Water Splitting Journal of Physical Chemistry C. ,vol. 112, pp. 5213- 5220 ,(2008) , 10.1021/JP077624C
Daniela Paluselli, Bjorn Marsen, Eric L. Miller, Richard E. Rocheleau, Nitrogen Doping of Reactively Sputtered Tungsten Oxide Films Electrochemical and Solid State Letters. ,vol. 8, ,(2005) , 10.1149/1.2042629
Daniel V. Esposito, Jingguang G. Chen, Robert W. Birkmire, Yuancheng Chang, Nicolas Gaillard, Hydrogen production from photo-driven electrolysis of biomass-derived oxygenates: A case study on methanol using Pt-modified WO3 thin film electrodes International Journal of Hydrogen Energy. ,vol. 36, pp. 9632- 9644 ,(2011) , 10.1016/J.IJHYDENE.2011.05.028
Vinay Shankar Vidyarthi, Martin Hofmann, Alan Savan, Kirill Sliozberg, Dennis König, Radim Beranek, Wolfgang Schuhmann, Alfred Ludwig, Enhanced photoelectrochemical properties of WO3 thin films fabricated by reactive magnetron sputtering International Journal of Hydrogen Energy. ,vol. 36, pp. 4724- 4731 ,(2011) , 10.1016/J.IJHYDENE.2011.01.087
M.F. Daniel, B. Desbat, J.C. Lassegues, B. Gerand, M. Figlarz, Infrared and Raman study of WO3 tungsten trioxides and WO3, xH2O tungsten trioxide tydrates Journal of Solid State Chemistry. ,vol. 67, pp. 235- 247 ,(1987) , 10.1016/0022-4596(87)90359-8