Related Experiment Video
Updated: Jun 15, 2025
Nanostructured Ag-zeolite Composites as Luminescence-based Humidity Sensors
Published on: November 15, 2016
Preparation and characterisation of NH3 gas sensor based on PANI/Fe-doped CeO nanocomposite
Chakavak Esmaeili1, Saeed Ashtiani2, Chhabilal Regmi2,3
1Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 1902/2, 166 27, Prague 6, Czech Republic.
Abstract:
PANI/Fe-doped CeO 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 nanocomposite with thin film deposited on top of interdigitated electrodes (IDT). NH detection with PANI/Fe-doped CeO nanocomposite sensor could be successfully performed even at room temperature (RT) and relative humidity of 45 %. Results demonstrated that PANI/Fe-doped CeO might be promising sensing materials for detecting the low NH concentration (ppm). In addition, the sensor is selective to the interfering gases, including CO, CO and NO . This sensor displays acceptable repeatability and stability over time.
