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A Tantalum Nitride Photoanode Modified with a Hole‐Storage Layer for Highly Stable Solar Water Splitting
Abstract
Photoelectrochemical (PEC) water splitting is an ideal approach for renewable solar fuel production. One of the major problems is that narrow bandgap semiconductors, such as tantalum nitride, though possessing desirable band alignment for water splitting, suffer from poor photostability for water oxidation. For the first time it is shown that the presence of a ferrihydrite layer permits sustainable water oxidation at the tantalum nitride photoanode for at least 6 h with a benchmark photocurrent over 5 mA cm−2, whereas the bare photoanode rapidly degrades within minutes. The remarkably enhanced photostability stems from the ferrihydrite, which acts as a hole‐storage layer. Furthermore, this work demonstrates that it can be a general strategy for protecting narrow bandgap semiconductors against photocorrosion in solar water splitting.
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Citations
Cites
Electrochemical Photolysis of Water at a Semiconductor Electrode
FUJISHIMA, A., & HONDA, K. (1972) · Nature · doi:10.1038/238037a0 · Cited by 34,169
Cited by
Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices
Pang, J., Bachmatiuk, A., Yin, Y., Trzebicka, B., Zhao, L., Fu, L., Mendes, R. G., Gemming, T., Liu, Z., & Rummeli, M. H. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201702093 · Cited by 518
Metadata
- Authors
- Liu, G., Shi, J., Zhang, F., Chen, Z., Han, J., Ding, C., Chen, S., Wang, Z., Han, H., & Li, C.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2014-05-30
- Volume
- 53
- Issue
- 28
- Pages
- 7295-7299
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W1993776021
- Cited by
- 416
- References
- 1
- FWCI
- 14.08
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, G., Shi, J., Zhang, F., Chen, Z., Han, J., Ding, C., Chen, S., Wang, Z., Han, H., & Li, C. (2014). A Tantalum Nitride Photoanode Modified with a Hole‐Storage Layer for Highly Stable Solar Water Splitting. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201404697
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