焙烧室温条件固相反应制备前驱物合成SnO2纳米棒的研究(英文)  

Synthesis of SnO_2 nanorods via annealing precursor produced bysolid-state reaction at roomtemperature

作　　者：赵鹤云[1] 柳清菊[2] 吴兴惠[2] 赵怀志[3] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093 [2]云南大学材料科学与工程系,云南昆明650091 [3]昆明贵金属研究所,云南昆明650022

出　　处：《功能材料》2005年第10期1634-1637,1644,共5页Journal of Functional Materials

基　　金：Thisworkwasfinanciallysupportedbythe"863"FoundationofChina(2002AA327090);NaturalScienceFoundationofEducationDepartmentofYunnanprovince(04Z205A);NaturalScienceFoundationofYunnanUniversity(2003Q003A)

摘　　要：室温条件下通过固相反应合成了SnO2纳米颗粒前驱物.在600～780℃对前驱物进行焙烧,在NaCl、KCl和KCl+NaCl的熔盐介质中SnO2前驱物纳米颗粒自组装生长形成SnO2 纳米棒.利用TEM、XRD和XPS对SnO2纳米棒结构、形貌和成分进行了研究.结果表明SnO2纳米棒直径为20～80nm,长度从几百纳米到十几微米.分析了SnO2 纳米颗粒前驱体熔盐介质中的生长,利用固相转变生长可以解释SnO2纳米棒在熔盐介质中的生长机制.SnO2 nanorods were prepared via annealing precursor powders produced by solid- state reaction at room temperature. The precursor grows into SnO2 nanorods via self assembly annealing at 600～780℃ in NaCl,KCl and KCl＋NaCl flux medium respectively. The structure and morpho1ogy of SnO2 nanorods were studied by means of X-ray diffraction （XRD）,transmission electron microscopy （TEM） and X-ray photoelectron spectrum （XPS）. The results show that diameter and length of the as-made nanorods are in the range of 20nm to 80nm and several micrometers respectively.The solid-state transformation explains the formation mechanism of SnO2 nanorods.

关 键 词：固相反应 SNO2 纳米棒 熔盐介质 固相转变 

分 类 号：TQ123.4[化学工程—无机化工] O782.4[理学—晶体学]