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Gas sensing properties of nanoparticle indium-doped WO3 thick films

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F05%3APU51682" target="_blank" >RIV/00216305:26220/05:PU51682 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Gas sensing properties of nanoparticle indium-doped WO3 thick films

  • Original language description

    The gas sensing properties of pure and indium-doped nanoparticle WO3 thick films were studied. Sensors were prepared using commercial WO3 nanopowders and powder mixtures with different concentrations of In (1.5, 3.0 and 5.0 wt.%). The gas sensing properties of the sensors to nitrogen dioxide, carbon monoxide, ammonia and ethanol were investigated. It was observed that the pure nanoparticle WO3 sensing layers began to react with nitrogen oxide at room temperature. These sensors had maximum sensitivity too NO2 at 100 °C. The indium-doped WO3-based sensors were selective to NO2 and CO at 200 and 300 °C, respectively. A mechanism for such behaviour is discussed.

  • Czech name

    Vlastnosti na plyny citlivých nanočástic v tlusté vrstvě WO3 dopované indiem

  • Czech description

    Byly studovány plynové citlivostní vlastnosti čisté a indiem dopované nanočásticové tlusté vrstvy WO3. Senzor byl vytvořen použitím komerčního WO3 nanoprášku a směsi s rozdilnými koncetracemi In (1.5, 3.0 a 5.0 hm.%). Byly zkoumány plynové citlivostní vlastnosti na oxid dusičitý, oxid uhelnatý, čpavek a etanol. Bylo zjištěno, že nanočásticová WO3 vrstva začíná reagovat s oxidem dusičitým za pokojové teploty. Tento senzor měl maximální citlivost na NO2 při 100 °C. Senzory na bázi indiem dopovaného WO3 byyly selektivní na NO2 a CO při 200 a 300 °C. Mechenizmus tohoto chováni je předmětem diskuze.

Classification

  • Type

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

  • CEP classification

    JB - Sensors, detecting elements, measurement and regulation

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Sensors and Actuators B: Chemical

  • ISSN

    0925-4005

  • e-ISSN

  • Volume of the periodical

    111-112

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    7

  • Pages from-to

    45-51

  • UT code for WoS article

  • EID of the result in the Scopus database