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Mesoporous TiO2: Comparison of Classical Sol−Gel and Nanoparticle Based Photoelectrodes for the Water Splitting Reaction
Abstract
This paper describes a systematic comparison of the photoelectrochemical properties of mesoporous TiO(2) films prepared by the two most prevalent templating methods: The use of preformed, crystalline nanoparticles is generally considered advantageous compared to the usage of molecular precursors such as TiCl(4), since the latter requires a separate heat treatment at elevated temperature to induce crystallization. However, our photoelectrochemical experiments clearly show that sol-gel derived mesoporous TiO(2) films cause an about 10 times higher efficiency for the water splitting reaction than their counterparts obtained from crystalline TiO(2) nanoparticles. This result indicates that for electrochemical applications the performance of nanoparticle-based metal oxide films might suffer from insufficient electronic connectivity.
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Citations
Cited by
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Chen, X., Shen, S., Guo, L., & Mao, S. S. (2010) · Chemical Reviews · doi:10.1021/cr1001645 · Cited by 7,876
Carbon as catalyst and support for electrochemical energy conversion
Trogadas, P., Fuller, T. F., & Strasser, P. (2014) · Carbon · doi:10.1016/j.carbon.2014.04.005 · Cited by 522
Chen, H. M., Chen, C. K., Chen, C.-J., Cheng, L.-C., Wu, P. C., Cheng, B. H., Ho, Y. Z., Tseng, M. L., Hsu, Y.-Y., Chan, T.-S., et al. (2012) · ACS Nano · doi:10.1021/nn3024877 · Cited by 329
Metadata
- Authors
- Hartmann, P., Lee, D.-K., Smarsly, B. M., & Janek, J.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-05-20
- Volume
- 4
- Issue
- 6
- Pages
- 3147-3154
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2046363359
- Cited by
- 219
- References
- 0
- FWCI
- 8.75
- Type
- journal article
- Language
- en
- Open access
- closed
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