Gold functionalized MoO3 nano flakes for gas sensing applications
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Gold functionalized MoO3 nano flakes for gas sensing applications
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Gold functionalized MoO3 nano flakes for gas sensing applications
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10305 - Fluids and plasma physics (including surface physics)
Návaznosti výsledku
Projekt
—
Návaznosti
—
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Sensors and Actuators B: Chemical
ISSN
0925-4005
e-ISSN
—
Svazek periodika
269
Číslo periodika v rámci svazku
Sep
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
9
Strana od-do
331-339
Kód UT WoS článku
000433211100040
EID výsledku v databázi Scopus
2-s2.0-85046700388