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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
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Continuities
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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
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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