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Titanium-Perovskite-Supported RuO2 Nanoparticles for Photocatalytic CO2 Methanation
Open accessAbstract
Summary This manuscript reports the photothermal activity for CO2 methanation of RuO2 nanoparticles supported on strontium titanate (STO) operating at 150°C under simulated sunlight irradiation. The RuO2/STO sample having the optimal performance exhibits under ultraviolet-visible (UV-vis) irradiation with a power of 108 mW/cm2 at 150°C a CH4 production rate of 14.6 mmol CH4 h−1 g−1. The photoresponse of the material is mainly due to UV photons, although RuO2/STO still retains about 50% efficiency under visible light irradiation (>400 nm). Mechanistic studies are compatible with a photothermal process with minor contribution of photocatalytic electron-hole pair charge separation. The photocatalyst is efficient enough to also operate under continuous flow conditions, achieving with a contact time of 3 s at 150°C under about 1 sun irradiation a steady-state CH4 production rate of 30 μmol h−1 for an 8-h-long experiment. This value ranks the material among the most efficient methanation photocatalysts.
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Cites
Resolving ruthenium: XPS studies of common ruthenium materials
Morgan, D. J. (2015) · Surface and Interface Analysis · doi:10.1002/sia.5852 · Cited by 1,199
A Particulate Photocatalyst Water-Splitting Panel for Large-Scale Solar Hydrogen Generation
Goto, Y., Hisatomi, T., Wang, Q., Higashi, T., Ishikiriyama, K., Maeda, T., Sakata, Y., Okunaka, S., Tokudome, H., Katayama, M., et al. (2018) · Joule · doi:10.1016/j.joule.2017.12.009 · Cited by 754
Cited by
Fundamentals and applications of photo-thermal catalysis
Mateo, D., Cerrillo, J. L., Durini, S., & Gascon, J. (2021) · Chemical Society Reviews · doi:10.1039/d0cs00357c · Cited by 799
Self-citationBlack indium oxide a photothermal CO2 hydrogenation catalyst
Wang, L., Dong, Y., Yan, T., Hu, Z., Ali, F. M., Meira, D. M., Duchesne, P. N., Loh, J. Y. Y., Qiu, C., Storey, E. E., et al. (2020) · Nature Communications · doi:10.1038/s41467-020-16336-z · Cited by 355
Thermo-photo catalysis: a whole greater than the sum of its parts
Fang, S., & Hu, Y. H. (2022) · Chemical Society Reviews · doi:10.1039/d1cs00782c · Cited by 283
Metadata
- Authors
- Mateo, D., Albero, J., & García, H.
- Venue
- Joule
- Publisher
- Elsevier BV
- Published
- 2019-08
- Volume
- 3
- Issue
- 8
- Pages
- 1949-1962
- ISSN
- 2542-4351 (ISSN-L)
- OpenAlex
- W2953433587
- Cited by
- 164
- References
- 2
- FWCI
- 3.50
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Mateo, D., Albero, J., & García, H. (2019). Titanium-Perovskite-Supported RuO2 Nanoparticles for Photocatalytic CO2 Methanation. Joule. https://doi.org/10.1016/j.joule.2019.06.001
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