Pd/SnO_2复合材料制备及室温下氢敏性质研究  

Research on preparing and gas-sensitivity characterization of Pd-doping SnO_2

作　　者：齐天骄[1,2] 王慧[1,2] 郝晓飞[1,2] 刘晓锋[1,2] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999 [2]中国工程物理研究院含能材料测试评价中心,四川绵阳621999

出　　处：《功能材料》2017年第4期4122-4126,共5页Journal of Functional Materials

摘　　要：采用沉淀法制备出Pd/SnO_2的纳米复合材料,分别利用SEM、XPS和XRD对样品表面形貌、元素化学态和晶体结构进行分析表征;利用浆液法制备旁热式平面传感元器件,利用恒电位法测试了样品的在氢敏性能。结果表明,用此种方法制备的Pd/SnO_2的纳米复合材料在室温下具有良好的氢气敏感性能,且对H_2具有较好的选择性,同时对不同浓度的H_2具有良好的灵敏性且随着H_2浓度的变化有一定的线性关系。Pd doped on SnO_2 were prepared by deposition.The morphology,surface chemistry and crystal structure of these nanoparticles were characterized by SEM,XPS and XRD.Planar indirectly heated sensor components were prepared by Pd-doping SnO_2 suspension.The hydrogen-sensing properties of the as-prepared samples were investigated by potentiostatic method.The results show that Pd-doping SnO_2 have excellent hydrogen sensing properties and choice under the room temperature.At the same time,it has good sensitivity with different H_2 concentrations,presenting a certain linear relationship with the change of H_2 concentration.

关 键 词：二氧化锡纳米材料 钯掺杂 氢气敏感 室温 

分 类 号：TG146.2[一般工业技术—材料科学与工程]