Room temperature ethanol detection using carbon materials

0572092 - FZÚ 2024 RIV CZ eng K - Konferenční příspěvek (tuzemská konf.)
Kočí, Michal
Room temperature ethanol detection using carbon materials.
Proceedings of the Student International Conference on Electrical Engineering /27./. Prague: Czech Technical University in Prague, 2023 - (Husník, L.), s. 51-54. ISBN 978-80-01-07140-3.
[Student International Conference on Electrical Engineering - POSTER 2023 /27./. Prague (CZ), 11.05.2023-11.05.2023]
Grant CEP: GA MŠMT LM2023051
Grant ostatní: AV ČR(CZ) PAN-20-21
Program: Bilaterální spolupráce
Institucionální podpora: RVO:68378271
Klíčová slova: gas sensor * nanocrystalline diamond (NCD) * graphene oxide (GO) * reduced graphene oxide (rGO) * thiol-functionalized graphene oxide (GO-SH)
Obor OECD: Materials engineering
https://poster.fel.cvut.cz/poster2023/

Allotropic forms of carbon, in particular graphene oxide (GO) or nanocrystalline diamond (NCD), attracted the attention of many research groups due to their unique electronic structures and extraordinary physical and chemical properties, preferable for many different applications, including sensor devices. This work focuses on responses of various sensing layers (NCD with hydrogen termination (H-NCD), graphene oxide (GO), reduced graphene oxide (rGO), thiol-functionalized graphene oxide (GO-SH) and their hybrid structures to ethanol vapor with concentrations up to 100 ppm in synthetic air at room temperature. The measured parameters of the tested sensors, especially stability, reproducibility and regeneration, are compared and critically evaluated. The high sensitivity of tested sensors achieved at room temperature makes them very promising for monitoring ethanol vapor as well as other volatile substances (e.g., isopropyl-alcohol or acetone).
Trvalý link: https://hdl.handle.net/11104/0342920