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The role of Rh dispersion in gas sensing effects observed in SnO2 thin films

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10405933" target="_blank" >RIV/00216208:11320/19:10405933 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=GoprOIdV5r" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=GoprOIdV5r</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.matchemphys.2019.04.069" target="_blank" >10.1016/j.matchemphys.2019.04.069</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The role of Rh dispersion in gas sensing effects observed in SnO2 thin films

  • Original language description

    In the present work the effect of surface modification by rhodium on the conductivity response of the SnO2 films to reducing gases such as CO and H-2 and oxidizing gas ozone was analyzed. SnO2 films, subjected to surface modification, were deposited by spray pyrolysis, while Rh was deposited using a micro electron beam evaporation. The thickness of the Rh coating varied in the range of 0-0.1 ML. It was found that there is an optimal thickness of Rh, which gives an improvement in the sensor response and a decrease in the recovery time. An explanation of the observed effects was proposed. It was assumed that the atomically dispersed state of rhodium is most active in gas-sensing effects. The transformation from the atomic state to the cluster state reduces the efficiency of the surface functionalization of SnO2 with rhodium.

  • 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

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

    Materials Chemistry and Physics

  • ISSN

    0254-0584

  • e-ISSN

  • Volume of the periodical

    232

  • Issue of the periodical within the volume

    Jun

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    9

  • Pages from-to

    160-168

  • UT code for WoS article

    000490045800021

  • EID of the result in the Scopus database

    2-s2.0-85065463953