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Photocatalytic transformation of CO2 to CH4 and CO on acidic surface of TiO2 anatase

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F16%3A00452641" target="_blank" >RIV/61388955:_____/16:00452641 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.optmat.2015.11.015" target="_blank" >http://dx.doi.org/10.1016/j.optmat.2015.11.015</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.optmat.2015.11.015" target="_blank" >10.1016/j.optmat.2015.11.015</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photocatalytic transformation of CO2 to CH4 and CO on acidic surface of TiO2 anatase

  • Original language description

    Recently, many studies have demonstrated that carbon dioxide can be converted to methane on TiO2 surface by a photocatalytic process. We show that such a photo-reduction can be significantly affected by the presence of an acidic proton in powder samples of titania. Using in situ absorption gas-phase rovibrational spectroscopic detection of CH4, CO and CO2, we demonstrate that proton enhancement positively affects transformation of intermediate derivatives to methane during the photo-irradiation process via several reactions in which the electron transfer inside titania is coupled to oxygen transfer to the Ti3+ centers of TiO2 structure. The yield of CH4 or CO depends on the surface conditioning of titania: the formation of CH4 is boosted by a presence of adsorbed HCl, while the formation of CO is boosted by adsorbed H2SO4.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Optical Materials

  • ISSN

    0925-3467

  • e-ISSN

  • Volume of the periodical

    56

  • Issue of the periodical within the volume

    JUN 2016

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    4

  • Pages from-to

  • UT code for WoS article

    000375517200015

  • EID of the result in the Scopus database

    2-s2.0-84963685634