溶液还原法合成聚合物基金属梯度复合膜反应机理的探讨  

Study on the Mechanism of Solution Reduction Synthesis (SRS) of Metal in Polymer Gradient Composite Film (MPGCF)

作　　者：刘海燕[1] 唐建国[1] 

机构地区：[1]青岛大学,山东青岛266071

出　　处：《化学世界》2003年第4期191-193,184,173,共5页Chemical World

基　　金：国家自然科学基金资助项目 ( 5 0 0 830 0 1)

摘　　要：用溶液还原法合成了聚合物基金属梯度复合膜 ,对浓溶液中 - CN/Cu2 +摩尔比及涂膜后预干燥程度进行了优化选择 ,并初步探讨了膜的形成机理。电化学反应过程中介质的 Cu2 +在外加电场作用下 ,向阴极迁移 ,穿过膜和膜内 Cu2 +一起向阴极迁移 ,参与得到电子还原为 Cu单质的反应 ,最终形成沉积层 ,并使阴极延伸。还原反应和离子迁移继续不断地进行 ,最终形成沉积层、过渡层和未沉积层的理想结构。Metal in polymer gradient composite film was synthesized by a solution-reduction method. The ratio of nitrile group to Cu 2+ ion in the concentrated solution and the predrying extent of the spread film on cathode were optimized. The perliminary mechanism of the formation of MPGCF was discussed. In the electrochemical process Cu 2+ in the solution migrated toward the cathode under the electric field, penetrated into the film, gained electrons and reduced to Cu element with the free Cu 2+ in the film. Finally a metal-deposited layer was formed and extended to the cathode. the successive reduction and ion migration formed the ideal construction of the deposited layer, transition layer and undeposited layer.

关 键 词：浓溶液 机理 聚合物基金属梯度复合膜 溶液还原法 合成 复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程] TB383