摘要
为改善WO3基敏感材料的气敏性能,采用微波回流法一次性合成了纳米WO3/TiO2复合材料,并研究TiO2掺杂量对用其制备的气敏元件气敏性能的影响。结果表明:此气敏元件对体积分数为100×10-6的NOx、二甲苯、H2S和丙酮气体具有较强的敏感性,掺杂w(TiO2)为20%的元件,对H2S和NOx的灵敏度分别为31.18和695.84;掺杂w(TiO2)为30%的元件,对二甲苯和丙酮的灵敏度分别为39.19和35.69。
To enhance the gas sensing property of WO3-based sensing material,WO3/TiO2 nanocomposites were one-step synthesized through a microwave returning method.Gas sensors were fabricatel from the synthesized WO3/TiO2 nanocomposites,and the effects of TiO2-doped amount on the gas sensing properties of obtained gas sensor were studied.The results show that the gas sensors have higher response to H2S,NOx,acetone and xylene of 100×10-6（volume fraction）.When doped w（TiO2） is 20%,the sensitivities of the gas sensors to H2S and NOx are 31.18 and 695.84,respectively.If doped w（TiO2） is 30%,the sensitivities of the gas sensors to xylene and acetone are 39.19 and 35.69,respectively.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2011年第1期30-33,共4页
Electronic Components And Materials
基金
河南省教育厅自然科学基金资助项目(No.2010A430021)
郑州市科技攻关项目(No.083SGYG23143-1)
郑州轻工业学院博士启动基金资助项目(No.2008BSJJ012)
