Pt-Al2O3 katalytický filtr pro sítotiskem deponovaný WO3 senzor vysoce selektivní na benzen

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F04%3APU38724" target="_blank" >RIV/00216305:26220/04:PU38724 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26220/04:PU53259

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Pt-loaded Al2O3 catalytic filters for screen-printed WO3 sensors highly selective to benzene

Popis výsledku v původním jazyce

We describe the fabrication of low-cost benzene sensors by using screen-printing technology. Two different types of catalytic filters were developed to enhance the sensitivity of tungsten oxide films to benzene. The first type of filter consists of a porous Al2O3 layer, loaded with a Pt layer on its surface. The second type of filter is based on a porous Al2O3 layer, with Pt homogeneously distributed in its bulk. These filters were used to coatWO3-based sensors. The presence of by-products resulting from the incomplete catalytic combustion of benzene in the catalytic filters (that could further interact with the WO3 film), explains the higher sensitivity of the coated sensors, as compared with the sensitivity of bare tungsten oxide sensors. In particular, it is shown that a very selective benzene sensor can be obtained by combining a coated and uncoated tungsten oxide sensor. This combined sensor, selectively detects benzene in a wide concentration range in the presence of interfering

Název v anglickém jazyce

Pt-loaded Al2O3 catalytic filters for screen-printed WO3 sensors highly selective to benzene

Popis výsledku anglicky

We describe the fabrication of low-cost benzene sensors by using screen-printing technology. Two different types of catalytic filters were developed to enhance the sensitivity of tungsten oxide films to benzene. The first type of filter consists of a porous Al2O3 layer, loaded with a Pt layer on its surface. The second type of filter is based on a porous Al2O3 layer, with Pt homogeneously distributed in its bulk. These filters were used to coatWO3-based sensors. The presence of by-products resulting from the incomplete catalytic combustion of benzene in the catalytic filters (that could further interact with the WO3 film), explains the higher sensitivity of the coated sensors, as compared with the sensitivity of bare tungsten oxide sensors. In particular, it is shown that a very selective benzene sensor can be obtained by combining a coated and uncoated tungsten oxide sensor. This combined sensor, selectively detects benzene in a wide concentration range in the presence of interfering

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

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

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Svazek periodika

101

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

277-283

Kód UT WoS článku

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EID výsledku v databázi Scopus

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