SnO_2/Zn_2SnO_4纳米结构的制备及光谱性质  

Preparation and Spectral Properties of SnO_2/Zn_2SnO_4 Nano-structures

作　　者：李俊寿[1] 石随林 赵芳[1] 闫晋东[3] 李苏[1] 

机构地区：[1]军械工程学院 [2]中航商用航空发动机有限责任公司 [3]中国人民解放军66446部队

出　　处：《稀有金属材料与工程》2013年第S1期6-9,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金资助(50572122;51172281)

摘　　要：采用自蔓延高温合成-喷射法制备了SnO2纳米线和SnO2/Zn2SnO4纳米结构,利用XRD、SEM、UV-vis和FT-IR对其物相、形貌和谱学性质进行了表征。结果表明:SnO2纳米线凝胶对紫外-可见光的透光度随着SnO2纳米线加入量的增加而增加,但是,SnO2/Zn2SnO4凝胶对紫外-可见光的透光度却随着SnO2/Zn2SnO4的增加而减少;与SnO2纳米线相比,SnO2/Zn2SnO4在1090,1430,1640,3450cm-14个特征波长附近对红外光谱的选择吸收率明显提高,因而对H2O、CH4、CO和CO2等气体的敏感性将显著增强。SnO2 nanowires and SnO2/Zn2SnO4 nanostructures were prepared by a self-propagating high-temperature synthesis technique. Their structure, morphology and spectroscopy were characterized by XRD, SEM, UV-vis and FT-IR methods. The results show that the transmittance of SnO2 nanowires in UV-vis spectrum increases with SnO2 addition, but that of SnO2 /Zn2SnO4 decreases with SnO2/Zn2SnO4 addition. As compared with SnO2 nanowires, the sensitivity of SnO2/Zn2SnO4 to H2O, CH4 , CO and CO2 increases, because the absorptivity of SnO 2 /Zn 2 SnO 4 increases significantly at 1090, 1430, 1640, 3450 cm -1 in IR spectrum.

关 键 词：SNO2 Zn2SnO4 纳米结构 光谱性能 自蔓延高温合成 

分 类 号：TB383.1[一般工业技术—材料科学与工程] O614.432[理学—无机化学]