Nanofibers of ZnO-SnO₂ nanocomposites doped with Au crystals were synthesized by an electrospinning method for enhancement of H₂S gas sensing performance. The mixed solution of zinc acetate dihydrate and tin(II) chloride dihydrate, dissolved in ethanol/DMF solvent, was spun directly on the interdigital Pt electrodes for sensor fabrication. Thermal treatment was carried out to convert the spun nanofibers into ZnO-SnO₂ nanocomposites doped with Au crystals. SEM and TEM observation confirmed the formation of porous nanofibers with an average diameter of about 120 nm. X-ray diffraction studies revealed that the nanocomposites of ZnO and SnO₂ phases were formed, but not ZnSnO_3, despite the precursor solution being mixed on the atomic scale from the starting solution. Doping with 0.001, 0.005 and 0.01 wt.% of Au slightly changed the morphology of the nanofibers because the Au was not doped into the crystals of ZnO or SnO₂, but mostly existed as the surface decoration. This ensured that the effective surface catalyzed the gas reaction, thus enhance the sensing performance. Gas sensitivity to H₂S gas was improved by approximately 700% with the optimal doping concentration of Au.

通过静电纺丝法合成了掺有Au晶体的ZnO-SnO ₂纳米复合纳米纤维，以提高H ₂ S的气敏性能。将溶解在乙醇/ DMF溶剂中的醋酸锌二水合物和氯化锡（II）二水合物的混合溶液直接纺丝在叉指式Pt电极上，用于传感器制造。进行热处理以将纺成的纳米纤维转化为掺杂有Au晶体的ZnO-SnO ₂纳米复合材料。SEM和TEM观察证实平均直径为约120nm的多孔纳米纤维的形成。X射线衍射研究表明，形成了ZnO和SnO ₂相的纳米复合物，但没有形成ZnSnO _3，尽管前体溶液与起始溶液在原子尺度上混合。掺杂0.001、0.005和0.01重量％的Au稍微改变了纳米纤维的形态，这是因为Au没有被掺杂到ZnO或SnO ₂的晶体中，而是主要作为表面装饰而存在。这确保了有效表面催化了气体反应，从而提高了感测性能。在金的最佳掺杂浓度下，对H ₂ S气体的气体敏感性提高了约700％。