中文摘要：

以鸡蛋壳内膜为模板,通过简单环保的液相浸渍技术结合热处理工艺制备了具有蛋膜分级结构特征的WO3纳米材料。利用XRD、SEM等测试手段,对其物相、结构进行了表征。测试了材料对H2S的气敏性能,探讨了煅烧温度、工作温度以及气体浓度对材料气敏性能的影响。结果表明700℃热处理条件下得到的材料对3.0×10-5 H2S的灵敏度高达687,且响应时间很短,材料的灵敏度与气体浓度呈现良好的线性关系。

英文摘要：

The WO3 material with interwoven meshwork conformation was successfully prepared using eggshell membrane as template by an aqueous soakage technique followed by calcination treatment.The phase composition and microstructure of the prepared nano-material were characterized by XRD and SEM.The sensitivity to H2S sensing properties was measured,the effects of calcination temperature,sensor operating temperature and concentrations of H2S gas on the sensitivity were investigated.The results showed that the sensitivity of material calcinated at 700℃ to 3.0×10-5 H2S reached 687 with a short response time and there was a good linear between sensitivity and concentration.