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Mineralization of flexible mesoporous TiO2 photoanodes using two low temperature dielectric barrier discharges in ambient air

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00108845" target="_blank" >RIV/00216224:14310/19:00108845 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216305:26310/19:PU133821

  • Result on the web

    <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ctpp.201700213" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/ctpp.201700213</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/ctpp.201700213" target="_blank" >10.1002/ctpp.201700213</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mineralization of flexible mesoporous TiO2 photoanodes using two low temperature dielectric barrier discharges in ambient air

  • Original language description

    Two types of dielectric barrier discharges (DBDs), volume DBD (called Industrial Corona) and coplanar DBD, were used for low temperature (70 degrees C) atmospheric pressure plasma mineralization of mesoporous methyl-silica/titanium dioxide nanocomposite photoanodes. The photoanodes with a thickness of approx. 300 nm were inkjet-printed on flexible polyethylene terephthalate (PET) foils. Plasma treatments of both DBDs led to changes in the chemical stoichiometry and morphology of the mesoporous photoanodes, resulting in a significant increase of the work function from approx. 4.0 to 4.3 eV and 4.8 eV, after plasma mineralization with volume DBD and coplanar DBD, respectively. We also studied the effect of plasma mineralization on the photoelectrochemical properties of the flexible mesoporous TiO2 photoanodes. Plasma mineralization with volume DBD and coplanar DBD showed different effects on the generated photocurrent in the photoanodes. Although the plasma mineralization with volume DBD showed only a minor effect on the photocurrent, plasma mineralization with coplanar DBD led to significantly higher photocurrents. We found that the enhancement of the photoelectrochemical properties was related to the homogeneity of the plasma-treated surfaces-arising from different spatial properties of the plasma between volume and coplanar DBDs. Furthermore, the results showed that plasma mineralization using coplanar DBD can effectively change the energy levels of the surface. This resulted in the enhancement of the work function and the photoelectrochemical properties of the mesoporous TiO2 photoanodes. This contribution shows that coplanar arrangement of electrodes in DBDs generates plasma of higher efficacy compared with standard volume DBD that is currently often used in industrial processes.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

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

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2019

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Contributions to plasma physics

  • ISSN

    0863-1042

  • e-ISSN

    1521-3986

  • Volume of the periodical

    59

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    9

  • Pages from-to

    102-110

  • UT code for WoS article

    000456801000010

  • EID of the result in the Scopus database

    2-s2.0-85060699916