摘要
以V2O5 和Mo粉为起始物质,通过溶胶-凝胶法制备了复合钒钼酸(H2V9Mo3O32.3·nH2O)干凝胶薄膜,薄膜为层状结构,V和Mo分别以V5+和Mo6+存在;在11%～95%RH的范围内,复合钒钼酸干凝胶薄膜具有很好的湿敏特性,响应、恢复时间分别为6s和15s,感湿温度系数为0.5%RH/℃.
Poly-vanadium-molybdenum acid xerogel thin films have been fabricated using V2O5 and Mo powders as the precursors by a sol-gel process. The compound has a layered structure. The valency of the Mo and V are Mo^6＋ and V^5＋, respectively. The humidity sensing properties of the thin films are good in the relative humidity range 11%-95%, the response time and the recovery time are 6 s and 15 s, the temperature error of the humidity is 0.5%RH/℃.
出处
《传感技术学报》
CAS
CSCD
北大核心
2005年第4期710-712,716,共4页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金资助项目(40304009)
关键词
复合钒铝酸于凝胶
薄膜
溶胶-凝胶法
湿敏特性
poly-vanadium-molybdenum acid xerogel
thin films
sol-gel process
humidity sensing properties
