Senzor pro detekci plynných uhlovodíků

0570773 - ÚFCH JH 2024 RIV cze P1 - User Module
Mergl, Martin - Kalbáč, Martin - Bodnár, M. - Černý, R. - Bariová, M. - Ozaňák, P. - Štulík, J. - Blecha, T. - Kubáč, L. - Josefík, F.
Senzor pro detekci plynných uhlovodíků.
[Hydrocarbon Gas Sensors.]
2022. Owner: Ústav fyzikální chemie J. Heyrovského AV ČR, v. v. i., Praha 8, Libeň - CZ Západočeská univerzita v Plzni, Plzeň, Jižní Předměstí - CZ Centrum organické chemie s.r.o., Rybitví - CZ TESLA BLATNÁ, a.s., Blatná, CZ. Date of the utility model acceptance: 19.10.2022. Utility model number: 36473
Institutional support: RVO:61388955
Keywords : methane * gas sensor * carbon nanotubes * metal oxide
OECD category: Physical chemistry
https://isdv.upv.cz/doc/FullFiles/UtilityModels/FullDocuments/FDUM0036/uv036473.pdf

Technické řešení se týká senzoru pro detekci plynných uhlovodíků, zejména pro identifikaci a měření koncentrace methanu (CH4) a dále oxidu uhelnatého (CO).

The essence of the technical solution lies in the fact that the sensor for the detection of gaseous hydrocarbons is composed of a support substrate, which fulfills the role of mechanical support, further from an interdigital electrode system arranged on the support substrate, which fulfills the role of a mediator transmitting the measured electrical signal, and further from a sensory layer arranged through the interdigital electrode system, which is sensitive to the presence of gaseous hydrocarbons, thus changing the values of the measured electrical signal passing through the interdigital electrode system. It is essential that the sensor layer is made of a material based on a composite of carbon nanotubes modified with the ternary system In2O3/SnO2/Pt since this modification is responsible for the sensitivity of the composite of carbon nanotubes to gaseous hydrocarbons.
According to the technical solution, the sensor enables accurate measurements of even very low concentrations of gaseous hydrocarbons, is suitable for mass production, reacts quickly to the presence and change of the concentration of gaseous hydrocarbons, and is resistant to poisoning by gaseous analytes.

Permanent Link: https://hdl.handle.net/11104/0342113