Highly stable and selective ethanol sensor based on α-Fe2O3 nanoparticles prepared by Pechini sol–gel method. Issue 5 (April 2016)

• Record Type: Journal Article
• Authors: Mirzaei, A.; Janghorban, K.; Hashemi, B.; Bonyani, M.; Leonardi, S.G.; Neri, G.
• Is Part Of: Ceramics international. Volume 42: Issue 5 (2016)
• Page Start: 6136
• Page End: 6144
• Publication Date: 2016-04
• Subjects: α-Fe2O3 -- Pechini sol–gel -- Nanoparticles -- Ethanol sensor -- Resistive sensor; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.12.176
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In the present work, α-Fe2 O3 nanoparticles were successfully synthesized by Pechini sol–gel (PSG) method following annealing at 550 °C. The morphology and microstructure of the prepared α-Fe2 O3 nanoparticles were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman analysis. The electrical and sensing properties were also investigated. The α-Fe2 O3 based sensor showed good sensitivity and selectivity towards ethanol at the optimal temperature of 225 °C. Moreover, the sensor displayed good electrical and sensing stability. These results suggest the potential applications of α-Fe2 O3 synthesized by Pechini sol–gel method as a sensor material for ethanol detection.