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。
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.
参考文献
| [1] | Lina Geng;Xueliang Huang;Yingqiang Zhao;Peng Li;Shurong Wang;Shoumin Zhang;Shihua Wu .H_2S sensitivity study of polypyrrole/WO_2 materials[J].Solid-State Electronics,2006(5):723-726. |
| [2] | 李东海,胡明,尹英哲,冯有才,陈鹏.两步热处理法对WO3薄膜结构及其气敏性能的影响[J].功能材料,2008(10):1659-1661. |
| [3] | 徐宇兴,唐子龙,张中太.氧化钨纳米线敏感膜对CO气体的气敏性能[J].功能材料,2009(06):1046-1048,1052. |
| [4] | 魏少红,行春丽,牛新书,蒋凯.溶胶-凝胶法纳米WO3材料的合成、表征及气敏性能[J].功能材料,2005(09):1401-1403. |
| [5] | 牛新书,孙静霞,邓伟娜.掺Sm3+的WO3纳米粉体的制备及其NO2气敏性能[J].电子元件与材料,2009(09):5-7. |
| [6] | Zhang, J;Liu, XH;Xu, MJ;Guo, XZ;Wu, SH;Zhang, SM;Wang, SR .Pt clusters supported on WO3 for ethanol detection[J].Sensors and Actuators, B. Chemical,2010(1):185-190. |
| [7] | 刘海峰,彭同江,孙红娟,马国华,段涛.气敏材料敏感机理研究进展[J].中国粉体技术,2007(04):42-45. |
| [8] | 桂阳海,徐甲强,李超,孙雨安.Zn2+掺杂WO3基气敏材料的制备及气敏性能研究[J].传感技术学报,2008(10):1682-1685. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%