The acetic acid vapor sensing properties of BaSnO3 microtubes prepared by electrospinning method

•One dimensional BaSnO3 microtubes were prepared via electrospining method.•The sample exhibited excellent selectivity of 14.4 to 1000 ppm acetic acid at 245 °C.•The detection limit for acetic acid was about 0.3 ppm. In this paper, BaSnO3 microtubes were prepared via electrospinning method using Ba(NO3)2 and SnCl4·5H2O as raw materials. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS), respectively; the gas sensing properties of the as-prepared sample were also investigated. The results revealed that BaSnO3 microtubes could be obtained by calcining the precursor at 700 °C for 6 h. It was revealed that the sensor device based on BaSnO3 microtubes (700 °C, 6 h) exhibited excellent selectivity and high response toward acetic acid vapor at the operating temperature of 245 °C, the ratio of S1000 ppm acetic acid to S1000 ppm ethanol was about 14.4; especially, when the concentration of acetic acid was as low as 0.3 ppm, the response was still able to reach 1.4.