UV-light activated APTES modified WO3-x nanowires sensitive to ethanol and nitrogen dioxide

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU137460" target="_blank" >RIV/00216305:26620/21:PU137460 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925400520313939?utm_campaign=STMJ_AUTH_SERV_PUBLISHED&utm_medium=email&utm_acid=79747982&SIS_ID=&dgcid=STMJ_AUTH_SERV_PUBLISHED&CMX_ID=&utm_in=DM91707&utm_source=AC_" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925400520313939?utm_campaign=STMJ_AUTH_SERV_PUBLISHED&utm_medium=email&utm_acid=79747982&SIS_ID=&dgcid=STMJ_AUTH_SERV_PUBLISHED&CMX_ID=&utm_in=DM91707&utm_source=AC_</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.snb.2020.129046" target="_blank" >10.1016/j.snb.2020.129046</a>

Result language
angličtina
Original language name
UV-light activated APTES modified WO3-x nanowires sensitive to ethanol and nitrogen dioxide
Original language description
The sensing properties of (3-aminopropyl)triethoxysilane modified tungsten oxide nanowires (APTES@WO3-x) based sensors toward several gases and vapors are reported in this work. The developed sensors show high sensitivity to ethanol and nitrogen dioxide under UV-irradiation at room temperature (24 ºC). Gas sensing results demonstrate enhanced sensing properties for the APTES@WO3-x compared to nonmodified WO3-x sensors, with the APTES@WO3-x sensors showing approximately 17 and 20 times more sensitivity to ethanol and nitrogen dioxide, respectively, compared to the non-modified WO3-x sensors. The APTES@WO3-x sensors also display improved selectivity to nitrogen dioxide (oxidizing gas) and ethanol (among other reducing gases including acetone, toluene, hydrogen, and carbon monoxide). These results are attributed to the presence of the reactive amino group at the APTES@WO3-x sensors, which facilitates the chemical interaction with nitrogen dioxide and ethanol and the electron transfer towards/from WO3-x under UV-light excitation. electron transfer towards/from WO3-x under UV-light excitation.
Czech name
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Czech description
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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
20501 - Materials engineering

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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