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  Judging the feasibility of TiO2 as photocatalyst for chemical energy conversion by quantitative reactivity determinants

Dilla, M., Moustakas, N. G., Becerikli, A. E., Peppel, T., Springer, A., Schlögl, R., et al. (2019). Judging the feasibility of TiO2 as photocatalyst for chemical energy conversion by quantitative reactivity determinants. Physical Chemistry Chemical Physics, 21(24), 13144-13150. doi:10.1039/C9CP00981G.

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 Creators:
Dilla, Martin1, Author
Moustakas, Nikolaos G.2, Author
Becerikli, Ahmet Esat1, Author
Peppel, Tim2, Author
Springer, Armin3, Author
Schlögl, Robert1, 4, Author           
Strunk, Jennifer2, Author
Ristig, Simon1, Author
Affiliations:
1Research Group Nanobased Heterogeneous Catalysts, Max Planck Institute for Chemical Energy Conversion, Max Planck Society, ou_3023876              
2Leibniz-Institut für Katalyse e.V., 18059 Rostock, Germany, ou_persistent22              
3Arbeitsbereich Medizinische Biologie und Elektronenmikroskopisches Zentrum (EMZ), Universitätsmedizin Rostock, 18057 Rostock, Germany, ou_persistent22              
4Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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 Abstract: In this study we assess the general applicability of the widely used P25-TiO2 in gas-phase photocatalytic CO2 reduction based on experimentally determined reactivity descriptors from classical heterogeneous catalysis (productivity) and photochemistry (apparent quantum yield/AQY). A comparison of the results with reports on the use of P25 for thermodynamically more feasible reactions and our own previous studies on P25-TiO2 as photocatalyst imply that the catalytic functionality of this material, rather than its properties as photoabsorber, limits its applicability in the heterogeneous photocatalytic CO2 reduction in the gas phase. The AQY of IrOx/TiO2 in overall water splitting in a similar high-purity gas-solid process was four times as high, but still far from commercial viability.

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Language(s): eng - English
 Dates: 2019-02-182019-05-272019-06-032019-06-28
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/C9CP00981G
 Degree: -

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Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
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Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: 7 Volume / Issue: 21 (24) Sequence Number: - Start / End Page: 13144 - 13150 Identifier: ISSN: 1463-9076
CoNE: https://pure.mpg.de/cone/journals/resource/954925272413_1