In this research, zinc stannate (Zn₂SnO₄) nanoparticles were synthesized using a single-step flame spray pyrolysis procedure. The material’s properties were characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Structural characterizations revealed that the nanoparticles had a spinel cubic nanocrystalline Zn₂SnO₄ phase. The sensitive layer of the sensor was fabricated by screen printing and exposed to various test gases, including CO, H₂, VOCs (toluene, acetone, ethanol) and NO₂ at 300 °C in both dry and humid conditions. Sensors produced from ZnO and SnO₂ were used as references to compare the zinc stannate’s performance. It was found that the stannate showed sensing behavior clearly distinct from the parent oxides. Diffuse reflectance infrared Fourier transform spectroscopy was used to gain insight into the surface reactions responsible for this sensing behavior of flame-spray-made Zn₂SnO₄ based sensor. The results revealed that mixed oxides offered desirable qualities not accessible using their parent oxides and should be more systematically examined for sensing.

在这项研究中，锡酸锌 (Zn ₂ SnO ₄ ) 纳米粒子是使用一步火焰喷射热解程序合成的。该材料的性能通过X射线衍射、透射电子显微镜和X射线光电子能谱进行表征。结构表征表明纳米颗粒具有尖晶石立方纳米晶Zn ₂ SnO ₄相。传感器的敏感层通过丝网印刷制造，并在干燥和潮湿条件下暴露于各种测试气体，包括 CO、H ₂、VOC（甲苯、丙酮、乙醇）和 NO ₂，温度为 300 °C。由 ZnO 和 SnO _{2制成的传感器}用作比较锡酸锌性能的参考。发现锡酸盐表现出明显不同于母体氧化物的传感行为。漫反射红外傅里叶变换光谱用于深入了解导致火焰喷涂制造的 Zn ₂ SnO ₄基传感器的这种传感行为的表面反应。结果表明，混合氧化物提供了使用其母体氧化物无法获得的理想品质，应更系统地检查以进行传感。