Ag(TCNQ)准—维微米结构的制备及表征  

Preparation and Characterization of Quasi-one-dimensional Microstructure of Ag(TCNQ)

作　　者：曹冠英[1] 叶春暖[1] 徐华华[2] 孙大林[1] 陈国荣[1] 

机构地区：[1]复旦大学材料科学系 [2]复旦大学化学系,上海200433

出　　处：《物理化学学报》2005年第1期47-51,共5页Acta Physico-Chimica Sinica

基　　金：上海市科委(0352nm012)资助项目~~

摘　　要：利用溶液化学反应法制备了准一维结构的金属有机配合物 Ag(TCNQ)．X 射线衍射(XRD)表明，所制备的 Ag(TCNQ)为晶态结构；扫描电子显微镜(SEM)的观察证明，Ag(TCNQ)为准一维的微米管或线；Raman 测试结果表明，单根的 Ag(TCNQ)形成时，Ag 原子与 TCNQ 分子之间发生了电荷转移．对样品的制备工艺，即 Ag膜厚度和浸入溶液的反应时间对生成 Ag(TCNQ)晶体形貌的影响进行了研究，结果表明，Ag 膜越薄，生长出的晶体越稀疏：Ag 膜与 TCNQ 乙腈溶液的反应时间影响其形貌的变化，反应历经三个阶段，晶体形成和长大阶段、反应完全阶段及溶解阶段。Quasi-one-dimensional microstructures of metal-organic complex Ag(TCNQ) were prepared by chemical solution reaction method. The obtained Ag(TCNQ) samples were characterized as crystalline state by XRD. SEM observation showed that Ag(TCNQ) was quasi-one-dimensional micro tube or wire. Raman measurement showed that complete charge transfer occurred between Ag atom and TCNQ molecule during the formation of Ag(TCNQ) single microstructure. The effects of thickness of Ag films and reaction time on the formation of quasi-one-dimensional microstructure of Ag(TCNQ) were studied. The results show that the thinner the Ag film is, the sparser the Ag (TCNQ) microstructures is obtained. The changes of morphologies for different reaction time indicate that the reaction undergoes three stages, i.e. formation and growth of crystals, complete reaction, and dissolving, orderly.

关 键 词：金属有机配合物 Ag(TcNQ) 准一维微米结构 溶液化学反应法 

分 类 号：TB383[一般工业技术—材料科学与工程]