论文部分内容阅读
在烷基胺/油酸/水混合体系中制备出表面包裹的亲油性纳米银颗粒,体系中的烷基胺作为络合剂和稳定剂起到使Ag离子水溶液与油酸互溶的作用,在还原过程中均匀释放出Ag离子,使Ag表面被油酸包裹具有亲油性。在相同反应条件下,分别以环己胺、正丁胺、三乙胺作为络合剂,考察了不同结构的胺对纳米Ag的形成过程以及对纳米Ag的表面性质和形貌的影响,并考察了所得纳米Ag颗粒的热稳定性。结果表明,相同反应条件下,正丁胺和三乙胺比环己胺更适于作为络合剂和稳定剂来制备油酸包裹的亲油性纳米Ag,所制备的纳米Ag颗粒在烷烃等中具有较好的热稳定性。
In the alkylamine / oleic acid / water mixture system, the surface-encapsulated lipophilic nano-silver particles were prepared. The alkylamine in the system acts as a complexing agent and stabilizer to make the Ag ion aqueous solution and oleic acid miscible. During the reduction process, Ag ions are uniformly released so that the Ag surface is oleic acid-coated with lipophilicity. In the same reaction conditions, respectively, cyclohexylamine, n-butylamine, triethylamine as a complexing agent, investigated the different structures of the amine on the formation of nano-Ag and nano-Ag on the surface properties and morphology The thermal stability of the resulting nano-Ag particles was investigated. The results show that under the same reaction conditions, n-butylamine and triethylamine are more suitable than cyclohexylamine as complexing agents and stabilizers to prepare oleic acid-coated lipophilic nano-Ag, nano-Ag particles prepared in alkanes, etc. Has good thermal stability.