SnO_2纳米晶修饰多孔Co_3O_4纳米棒的制备及气敏性能研究  

Preparation and gas sensing properties of SnO_2 nanocrystals modified porous Co_3O_4 nanorods

作　　者：潘兰英[1] 胡平[2] 赵宏滨[1] 董晓雯[1] 徐甲强[1] 

机构地区：[1]上海大学理学院,上海200444 [2]郑州牧业工程高等专科学校,河南郑州450011

出　　处：《功能材料》2013年第12期1713-1716,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(61071040);上海市教委重点学科建设资助项目(J50102)

摘　　要：以CoCl2.6H2O和CO(NH2)2为原料采用水热法合成多孔Co3O4纳米棒,之后通过自组装的方法将SnO2纳米晶修饰到多孔Co3O4纳米棒上。研究了SnO2纳米晶修饰对多孔Co3O4纳米棒气敏性能的影响。气敏测试结果表明SnO2纳米晶的修饰明显增强了多孔Co3O4纳米棒对CH3CH2OH和H2S的响应,对CH3CH2OH和H2S的检出下限分别达到5.0×10-6和1.0×10-6。Porous Co3O4 nanorods are fabricated using tacile hydrothermal method lrom GotAe · bVlet） ana CO （NH2）2, and further modified with SnO2 nanocrystals through a self-assemblies route. The effects of self-as- sembling SnO2 onto porous Co304 nanorods sensing properties were investigated. The gas-sensing measure- ments show that after assembling SnO2 nanocrystals onto the surface of porous Co3O4 nanorods, the gas sens- ing properties of the sensors toward CHaCH2OH and HeS were greatly improved, and the detection limits of CH3CH2OH and H2S were reached 5.0×10-6 and 1.0×10-6, respectively.

关 键 词：多孔Co3O4纳米棒 SNO2纳米晶 水热合成 自组装 气体传感器 

分 类 号：TP212.2[自动化与计算机技术—检测技术与自动化装置] O622.4[自动化与计算机技术—控制科学与工程]