纳米SnO_2/SiO_2复合材料的制备及其对H_2气敏性研究  

Synthesis and gas sensitivity properties of nano-SnO_2/SiO_2 composite

作　　者：司莉粉 詹自力[1] 李广伟[1] 

机构地区：[1]郑州大学化工与能源学院,郑州450001

出　　处：《化工新型材料》2014年第2期102-104,共3页New Chemical Materials

基　　金：教育部留学回国人员科研启动基金资助项目(2012-940);河南省重点科技攻关项目(0624220059)

摘　　要：采用锡粒氧化法合成纳米二氧化锡(SnO2),并以KH-550为改性剂,对纳米二氧化锡进行表面化学修饰,制得SnO2/SiO2复合材料,研究了不同条件下制得的SnO2/SiO2复合材料对H2的气敏性能。实验结果表明较佳的SnO2/SiO2复合材料制备工艺条件为:室温条件下,改性剂与纳米二氧化锡质量百分比为9%,在甲苯溶剂中反应3h。制备的SnO2/SiO2复合材料对1000ppm H2的气体灵敏度为37.506。The nano tin dioxide was prepared by tin grain oxidation, and the surface of nano tin dioxide was modified with KH-550,then SnO2/SiO2 composite material was got. Next H2 sensitivity properties of the composite which,btained under different conditions were researched. The results showed that the preferred material under follow preparation condi- tions：the modification was carried out by nano tin dioxide in a 9 wt% KH-550 toluene solution at room temperature for 3h. And the gas sensitivity of the material on 1000ppm H2was 37. 506.

关 键 词：纳米材料 SNO2 SIO2 气敏性能 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB332