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 S_{1000 ppm acetic acid} to S_{1000 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.

本文以Ba（NO ₃）₂和SnCl ₄ ·5H ₂ O为原料，通过电纺法制备了BaSnO ₃微管。所制备的样品分别通过X射线衍射（XRD），扫描电子显微镜（SEM）和X射线光电子能谱（XPS）进行表征。还研究了所制备样品的气敏特性。结果表明，将前体在700°C下煅烧6 h可制得BaSnO ₃微管。据透露，基于BaSnO ₃的传感器设备微管（700°C，6 h）在245°C的工作温度下表现出优异的选择性和对乙酸蒸气的高响应，S _{1000 ppm乙酸}与S _{1000 ppm乙醇的}比例约为14.4；特别是当乙酸的浓度低至0.3 ppm时，响应仍能达到1.4。