Printable Chemoresistive Sensor Based on PrFeTiO₅ Solid Solution for Acetone Detection

Danial Ahmed; Elena Spagnoli; Adil Chakir; Maura Mancinelli; Matteo Ferroni; Boubker Mehdaoui; Abdeslam Bouari; Barbara Fabbri

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Printable Chemoresistive Sensor Based on PrFeTiO₅ Solid Solution for Acetone Detection

^{*

1},

¹,

²,

¹,

Matteo Ferroni

³,

Boubker Mehdaoui

²,

Abdeslam El Bouari

²,

Barbara Fabbri

¹ Department of Physics and Earth Sciences, University of Ferrara
² Laboratory of Physical-Chemistry of Applied Materials, Department of Chemistry, Faculty of Sciences Ben M’Sik, University Hassan II of Casablanca, Casablanca 20670, Morocco
³ Institute for the Study of Nanostructured Materials ISMN-CNR, Via Gobetti 101, 40129 Bologna, Italy

Academic Editor: Stefano Mariani

Published: 07 November 2025 by MDPI in The 12th International Electronic Conference on Sensors and Applications session Student Session

https://doi.org/10.3390/ECSA-12-26592 (registering DOI)

Abstract:

Acetone necessitates reliable detection for the sake of both industrial and environmental safety. Metal oxides are widely used as functional materials for the development of gas sensors because techniques like nanostructure modification, doping, and solid solution formation can enhance their sensitivity and selectivity by tuning structural and electronic properties. This study developed PrFeTiO₅ nanostructures, synthesized via the solid-state reaction for acetone sensing. The sensor demonstrated a high response to acetone at an operating temperature of 400 °C, with a low influence of humidity, displaying outstanding selectivity towards acetaldehyde, NH₃, H₂, CO, and CO₂, making it suitable across various applications.

Keywords: PrFeTiO5 nanostructures, Chemoresistive sensor, VOC detection

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