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Atomic Layer Deposition of a Submonolayer Catalyst for the Enhanced Photoelectrochemical Performance of Water Oxidation with Hematite
Abstract
Hematite photoanodes were coated with an ultrathin cobalt oxide layer by atomic layer deposition (ALD). The optimal coating-1 ALD cycle, which amounts to <1 monolayer of Co(OH)2/Co3O4-resulted in significantly enhanced photoelectrochemical water oxidation performance. A stable, 100-200 mV cathodic shift in the photocurrent onset potential was observed that is correlated to an order of magnitude reduction in the resistance to charge transfer at the Fe2O3/H2O interface. Furthermore, the optical transparency of the ultrathin Co(OH)2/Co3O4 coating establishes it as a particularly advantageous treatment for nanostructured water oxidation photoanodes. The photocurrent of catalyst-coated nanostructured inverse opal scaffold hematite photoanodes reached 0.81 and 2.1 mA/cm(2) at 1.23 and 1.53 V, respectively.
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Cited by
Recent Progress in Energy‐Driven Water Splitting
Tee, S. Y., Win, K. Y., Teo, W. S., Koh, L., Liu, S., Teng, C. P., & Han, M. (2017) · Advanced Science · doi:10.1002/advs.201600337 · Cited by 962
Efficient solar water-splitting using a nanocrystalline CoO photocatalyst
Liao, L., Zhang, Q., Su, Z., Zhao, Z., Wang, Y., Li, Y., Lu, X., Wei, D., Feng, G., Yu, Q., et al. (2014) · Nature Nanotechnology · doi:10.1038/nnano.2013.272 · Cited by 852
Yang, W., Prabhakar, R. R., Tan, J., Tilley, S. D., & Moon, J. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00997j · Cited by 787
Thin film photoelectrodes for solar water splitting
He, Y., Hamann, T., & Wang, D. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00868j · Cited by 284
Self-citationAn Optically Transparent Iron Nickel Oxide Catalyst for Solar Water Splitting
Morales-Guio, C. G., Mayer, M. T., Yella, A., Tilley, S. D., Grätzel, M., & Hu, X. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b05544 · Cited by 278
Metadata
- Authors
- Riha, S. C., Klahr, B. M., Tyo, E. C., Seifert, S., Vajda, S., Pellin, M. J., Hamann, T. W., & Martinson, A. B. F.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-02-28
- Volume
- 7
- Issue
- 3
- Pages
- 2396-2405
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2327406826
- Cited by
- 253
- References
- 0
- FWCI
- 14.67
- Type
- journal article
- Language
- en
- Open access
- closed
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- Riha, S. C., Klahr, B. M., Tyo, E. C., Seifert, S., Vajda, S., Pellin, M. J., Hamann, T. W., & Martinson, A. B. F. (2013). Atomic Layer Deposition of a Submonolayer Catalyst for the Enhanced Photoelectrochemical Performance of Water Oxidation with Hematite. ACS Nano. https://doi.org/10.1021/nn305639z
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