Highly reliable and selective ethanol sensor based on α-Fe<sub>2</sub>O<sub>3</sub> nanorhombs working in realistic environments

Highly reliable and selective ethanol sensor based on α-Fe₂O₃ nanorhombs working in realistic environments

Yan Wenjun^{1, †}, Zeng Xiaomin^{2, †}, Liu Huan¹, Guo Chunwei¹, Ling Min², Zhou Houpan^{1, §}

The α-Fe₂O₃ nanorhombs-based sensor working at 280 °C: (a) Resistance versus time for various ethanol concentrations (1 ppm–20 ppm), (b) the corresponding response values, (c) repeatability for 3 ppm ethanol, (d) selectivity for various gases.