期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 238, 期 1-2, 页码 26-34出版社
ELSEVIER
DOI: 10.1016/j.molcata.2005.04.062
关键词
Pd-0; Au-0 nanoclusters; functional resins; oxidation catalysis
Moderately cross-linked co-polymers of N,N-dimethylacrylamide (DMAA), 2-(methylthio)ethyl methacrylate (MTEMA)and N,N'-methylenebisacrylamide proves to be effective macromolecular ligands able to extract, Pd-II and Au-III from water solutions and to thoroughly disperse them inside the relevant polymer frameworks. Chemical reduction with NaBH4 in water leads to M-0/resin composites, in which size-control of the generated metal nanoclusters is achieved. Catalysts Au-0/MTEMA-DMAA are active in the rapid oxidation of n-butanal to n-butanoic acid by dioxygen under mild conditions in water. Catalysts M-0/MTEMA-DMAA and M-0/C (M = Au, Pd) are active and moderalely chemoselective in the oxidation of n-butanol to n-butanal under the same conditions. Activity and chemoselectivity are positively affected by the co-presence of the two metal centres and for M-0 = Au and reach the best level when the very hydrophilic resin poly-(4-vinylpyridine-acrylic acid-N,N'-methylenebisacrylamide) (VAM) is employed. (c) 2005 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据