Ethanol Sensor Based on Hydrothermal Method Prepared Porous α-Fe₂O₃ Nanorods

Abstract:

Porous α-Fe2O3 nanorods were prepared by the hydrothermal method from FeCl4 and urea without templates. The as-prepared products were characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscopy (TEM) analysis techniques. The as-prepared α-Fe2O3 has the porous nanorods structured with the length of about 200 nm, diameter of about 50 nm and high surface area (255.2 m2•g-1). The gas-sensing measurement results demonstrated that the sensor of porous α-Fe2O3 nanorods presented high response to ethanol vapor and which can response to ethanol vapor at low-temperature. Due to the exciting gas-sensing properties, the as-prepared porous α-Fe2O3 nanorods would be an ideal candidate for the application in ethanol sensors.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 1075-1078
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.1075
• Online since: February 2012
• Authors: Yan Wang, Yu Mei Chen, Jian Chao Shi, Jian Liang Cao, Guang Sun, Ba La Hari, Zhan Ying Zhang
• Keywords: Ethanol, Gas Sensor, Hydrothermal Synthesis, Nanorod, α-Fe₂O₃

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