溶剂化金属原子浸渍法制备聚合物固载Co-Ag催化剂Ⅲ.聚合物比表面积对催化性能的影响  

Preparation of Polymer Immobilized SMAI Co-Ag Catalysts via Solvated Metal Atom Impregnation

作　　者：吴世华[1] 魏伟[1] 张守民[1] 黄唯平[1] 张淑红[1] 郑修成[1] 

机构地区：[1]南开大学化学系,天津300071

出　　处：《功能高分子学报》2000年第2期157-160,共4页Journal of Functional Polymers

基　　金：国家自然科学基金!资助项目 (2 96 710 2 );天津市自然科学基金!资助项目 (9836 0 36 11)

摘　　要：应用溶剂化金属原子浸渍法制备了四种不同比表面积树脂固载的Co-Ag双金属催化剂。X射线衍射 (XRD)和磁测定结果表明 ,随着树脂比表面积的增大 ,具有相同金属含量的催化剂Co和Ag的颗粒减小 ,分散度增大 ,因而催化剂在二丙酮醇加氢以及燃料电池电极上氧还原的催化活性增大。The solvated metal atom impregnation (SMAI) method was employed to prepare Co-Ag bimetallic catalysts immobilized with four kinds of resin of different specific area. The results of XRD and magnetic measurement showed that as the specific area of resin increased, the particle size of Co and Ag on the catalysts with the same metal content decreased, so the catalytic activities of the catalysts in hydrogenation of diacetone alcohol as well as in reduction of oxygen on the fuel cell electrode increased.

关 键 词：树脂固载催化剂 钴银催化剂 制备 SMAI 催化活性 

分 类 号：TQ426.82[化学工程] O643.361[理学—物理化学]