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Preparation and characterisation of NH3 gas sensor based on PANI/Fe-doped CeO 2 nanocomposite.
Esmaeili, Chakavak; Ashtiani, Saeed; Regmi, Chhabilal; Laposa, Alexandr; Voves, Jan; Kroutil, Jirí; Friess, Karel; Povolny, Vojtech; Lotfian, Saeid.
Affiliation
  • Esmaeili C; Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
  • Ashtiani S; Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic.
  • Regmi C; Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic.
  • Laposa A; Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR, 72701, United States.
  • Voves J; Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
  • Kroutil J; Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
  • Friess K; Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
  • Povolny V; Department of Physical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic.
  • Lotfian S; Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
Heliyon ; 10(15): e34801, 2024 Aug 15.
Article in En | MEDLINE | ID: mdl-39170534
ABSTRACT
PANI/Fe-doped CeO 2 nanocomposite was synthesised by the in-situ process. The produced powders were characterised by XRD, XPS, FT-IR, Raman, HRTEM and SEM-EDS tests. The sensors' function was based on PANI/Fe-doped CeO 2 nanocomposite with thin film deposited on top of interdigitated electrodes (IDT). NH 3 detection with PANI/Fe-doped CeO 2 nanocomposite sensor could be successfully performed even at room temperature (RT) and relative humidity of 45 %. Results demonstrated that PANI/Fe-doped CeO 2 might be promising sensing materials for detecting the low NH 3 concentration (ppm). In addition, the sensor is selective to the interfering gases, including CO, CO 2 and NO 2 . This sensor displays acceptable repeatability and stability over time.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Heliyon Year: 2024 Document type: Article Affiliation country: Czech Republic Country of publication: United kingdom
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Heliyon Year: 2024 Document type: Article Affiliation country: Czech Republic Country of publication: United kingdom