Gas sensor with different morphology of PANI layer

0570233 - FZÚ 2024 RIV CH eng J - Článek v odborném periodiku
Kroutil, J. - Laposa, A. - Povolný, V. - Klimša, Ladislav - Husák, M.
Gas sensor with different morphology of PANI layer.
Sensors. Roč. 23, č. 3 (2023), č. článku 1106. E-ISSN 1424-8220
Grant CEP: GA ČR(CZ) GA22-04533S
Výzkumná infrastruktura: CzechNanoLab - 90110; CzechNanoLab II - 90251
Institucionální podpora: RVO:68378271
Klíčová slova: polyaniline * gas sensor * polymer film
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.9, rok: 2022
Způsob publikování: Open access

This work presents the design of a polymer-film-based sensor for gas detection. Different types of polyaniline are used as active layers. The advantages of resistive sensors with PANI layers are easy preparation and low production cost. At room temperature, polymer films have a high sensitivity to gas concentrations. The developed sensor works on the idea of electrical resistance shifting with gas concentration. Three different polymerization solutions are employed to synthesize the polyaniline (PANI) active layers (aqueous solution, sulfuric acid solution, and acetic acid solution). Active layers are evaluated in a controlled environment for their ability to detect ammonia, carbon monoxide, nitrogen monoxide, acetone, toluene, and relative humidity in synthetic air. PANI layers polymerized in acetic acid solutions exhibit good sensitivity toward ammonia.

Trvalý link: https://hdl.handle.net/11104/0349370