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Gold functionalized MoO3 nano flakes for gas sensing applications

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10425356" target="_blank" >RIV/00216208:11320/18:10425356 - isvavai.cz</a>

  • Result on the web

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

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.snb.2018.04.124" target="_blank" >10.1016/j.snb.2018.04.124</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Gold functionalized MoO3 nano flakes for gas sensing applications

  • Original language description

    Molybdenum trioxide (MoO3) nano flakes (NF) with orthorhombic structure were synthesized by evaporation-condensation method using MoO3 powder as a raw material. Gold (Au) nanoparticles were used as a catalyst, preventing the growth of thick layers of MoO3. Furthermore, Au functionalization was performed by sputtering on pure MoO3 NF for a few seconds, decorating the flakes with Au nanoparticles. Chemical sensing performances were evaluated by introducing CO, NH3, Ethanol, NO2, Methanol, H-2 and H2S gases in a syntetic air baseline with a relative humidity of 40% at 25 degrees C. MoO3 NF shows good sensitivity to Ethanol, Methanol, H-2 and H2S gases. Owing to Au functionalization the devices exhibited an excellent response to H2S at an operating temperature of 400 degrees C: the response was 10 times higher than the pure MoO3, and the detection limit moved toward the ppb range. (c) 2018 Elsevier B.V. All rights reserved.

  • 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

Others

  • Publication year

    2018

  • 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

    269

  • Issue of the periodical within the volume

    Sep

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    331-339

  • UT code for WoS article

    000433211100040

  • EID of the result in the Scopus database

    2-s2.0-85046700388