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Preferential Oxidation of Carbon Monoxide Catalyzed by Platinum Nanoparticles in Mesoporous Silica
Abstract
Preferential oxidation (PROX) of CO is an important practical process to purify H2 for use in polymer electrolyte fuel cells. Although many supported noble metal catalysts have been reported so far, their catalytic performances remain insufficient for operation at low temperature. We found that Pt nanoparticles in mesoporous silica give unprecedented activity, selectivity, and durability in the PROX reaction below 353 K. We also studied the promotional effect of mesoporous silica in the Pt-catalyzed PROX reaction by infrared spectroscopy using the isotopic tracer technique. Gas-phase O2 is not directly used for CO oxidation, but the oxygen of mesoporous silica is incorporated into CO2. These results suggest that CO oxidation is promoted by the attack of the surface OH groups to CO on Pt without forming water.
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Citations
Cited by
Atomically dispersed iron hydroxide anchored on Pt for preferential oxidation of CO in H2
Cao, L., Liu, W., Luo, Q., Yin, R., Wang, B., Weissenrieder, J., Soldemo, M., Yan, H., Lin, Y., Sun, Z., et al. (2019) · Nature · doi:10.1038/s41586-018-0869-5 · Cited by 641
Recent Advances in Preferential Oxidation of CO Reaction over Platinum Group Metal Catalysts
Liu, K., Wang, A., & Zhang, T. (2012) · ACS Catalysis · doi:10.1021/cs200418w · Cited by 466
Qiao, B., Liu, J., Wang, Y.-G., Lin, Q., Liu, X., Wang, A., Li, J., Zhang, T., & Liu, J. (. (2015) · ACS Catalysis · doi:10.1021/acscatal.5b01114 · Cited by 455
Metal organic frameworks as precursors for the manufacture of advanced catalytic materials
Oar-Arteta, L., Wezendonk, T., Sun, X., Kapteijn, F., & Gascon, J. (2017) · Materials Chemistry Frontiers · doi:10.1039/c7qm00007c · Cited by 361
Hsieh, Y.-C., Zhang, Y., Su, D., Volkov, V., Si, R., Wu, L., Zhu, Y., An, W., Liu, P., He, P., et al. (2013) · Nature Communications · doi:10.1038/ncomms3466 · Cited by 229
Metadata
- Authors
- Fukuoka, A., Kimura, J.-I., Oshio, T., Sakamoto, Y., & Ichikawa, M.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-31
- Volume
- 129
- Issue
- 33
- Pages
- 10120-10125
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2003756634
- Cited by
- 185
- References
- 0
- FWCI
- 8.04
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fukuoka, A., Kimura, J.-I., Oshio, T., Sakamoto, Y., & Ichikawa, M. (2007). Preferential Oxidation of Carbon Monoxide Catalyzed by Platinum Nanoparticles in Mesoporous Silica. Journal of the American Chemical Society. https://doi.org/10.1021/ja0703123
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