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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Sensors and Actuators B: Chemical

ISSN

0925-4005

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000600962500005

EID výsledku v databázi Scopus

—