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Facile Fabrication of Sandwich Structured WO3 Nanoplate Arrays for Efficient Photoelectrochemical Water Splitting
Abstract
Herein, sandwich structured tungsten trioxide (WO3) nanoplate arrays were first synthesized for photoelectrochemical (PEC) water splitting via a facile hydrothermal method followed by an annealing treatment. It was demonstrated that the annealing temperature played an important role in determining the morphology and crystal phase of the WO3 film. Only when the hydrothermally prepared precursor was annealed at 500 °C could the sandwich structured WO3 nanoplates be achieved, probably due to the crystalline phase transition and increased thermal stress during the annealing process. The sandwich structured WO3 photoanode exhibited a photocurrent density of 1.88 mA cm(-2) and an incident photon-to-current conversion efficiency (IPCE) as high as 65% at 400 nm in neutral Na2SO4 solution under AM 1.5G illumination. To our knowledge, this value is one of the best PEC performances for WO3 photoanodes. Meanwhile, simultaneous hydrogen and oxygen evolution was demonstrated for the PEC water splitting. It was concluded that the high PEC performance should be attributed to the large electrochemically active surface area and active monoclinic phase. The present study can provide guidance to develop highly efficient nanostructured photoelectrodes with the favorable morphology.
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Cites
McCrory, C. C. L., Jung, S., Ferrer, I. M., Chatman, S. M., Peters, J. C., & Jaramillo, T. F. (2015) · Journal of the American Chemical Society · doi:10.1021/ja510442p · Cited by 4,145
Prenucleation clusters and non-classical nucleation
Gebauer, D., & Cölfen, H. (2011) · Nano Today · doi:10.1016/j.nantod.2011.10.005 · Cited by 682
Cited by
Li, P., Zhou, Z., Wang, Q., Guo, M., Chen, S., Low, J., Long, R., Liu, W., Ding, P., Wu, Y., et al. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.0c05097 · Cited by 469
Perovskite Oxide Based Electrodes for High‐Performance Photoelectrochemical Water Splitting
Wang, W., Xu, M., Xu, X., Zhou, W., & Shao, Z. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.201900292 · Cited by 409
Shandilya, P., Sambyal, S., Sharma, R., Mandyal, P., & Fang, B. (2022) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2022.128218 · Cited by 384
Advanced Catalysts for Photoelectrochemical Water Splitting
Marwat, M. A., Humayun, M., Afridi, M. W., Zhang, H., Abdul Karim, M. R., Ashtar, M., Usman, M., Waqar, S., Ullah, H., Wang, C., et al. (2021) · ACS Applied Energy Materials · doi:10.1021/acsaem.1c02548 · Cited by 191
Metadata
- Authors
- Feng, X., Chen, Y., Qin, Z., Wang, M., & Guo, L.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-07-07
- Volume
- 8
- Issue
- 28
- Pages
- 18089-18096
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2461174243
- Cited by
- 171
- References
- 2
- FWCI
- 6.08
- Type
- journal article
- Language
- en
- Open access
- closed
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