Number of the records: 1
Dataset-PILs-Sensors ACS-Omega
- 1.
SYSNO ASEP 0615014 R&D Document Type The record was not marked in the RIV Title Dataset-PILs-Sensors ACS-Omega Author(s) Otta, Jaroslav (FZU-D) ORCID
Mikuláštík, J. (CZ)
Šípka, R. (CZ)
Stein, M. (DE)
Kühne, Irina A. (FZU-D) ORCID
Vrňata, M. (CZ)
Vlček, Jan (FZU-D) RID, ORCIDLanguage eng - English Keywords polymer ionic liquids ; gas sensors ; fullerene OECD category Physical chemistry R&D Projects EH22_008/0004596 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA23-05878S GA ČR - Czech Science Foundation (CSF) EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 DOI https://doi.org/10.57680/asep.0615014 Annotation Abstract: we investigate the interactions between five representative gaseous analytes and two poly(ionic liquid)s (PILs) based on the sulfopropylacrylate polyanion in combination with the alkylphosphonium cations, P4,4,4,4 and P4,4,4,8, and their nanocomposites with fullerenes (C60, C70) to reveal the potential of PILs as sensitive layers for gas sensors. The gaseous analytes were chosen based on their molecular size (all of them containing two carbon atoms) and variation of functional groups: alcohol (ethanol), nitrile (acetonitrile), aldehyde (acetaldehyde), halogenated alkane (bromoethane) and carboxylic acid (acetic acid). The six variations of PILs - P4,4,4,4SPA (1), P4,4,4,4SPA+C60 (1+C60), P4,4,4,4SPA+C70 (1+C70), and P4,4,4,8SPA (2), P4,4,4,8SPA+C60 (2+C60), P4,4,4,8SPA+C70 (2+C70) - were characterized by UV-Vis and Raman spectroscopy, and their interactions with each gaseous analyte were studied using electrochemical impedance spectroscopy. Exposure of all PIL samples to acetaldehyde, bromoethane and ethanol leads to a decrease in the diffusion coefficient, while exposure to acetic acid reveals an increase. Fullerene-doping significantly enhances the response to the analyte. Semi-empirical quantum mechanical xTB-GFN2 calculations revealed that hydrogen bonding and proton transfer events play an important role during the detection process.
Data: Figures (as png, jpg or tif files), tables (as csv files)
Readme.txt (Title, Authors, Affiliations, Abstract, DOI, data description)Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025
Number of the records: 1