Direct deposition of gold nanoparticles onto polymer beads and glucose oxidation with H2O2
Direct deposition of gold nanoparticles onto polymer beads and glucose oxidation with H2O2
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DOI：
10.1016/j.jcis.2008.02.046
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发表时间：
2008-07-01
影响因子：
9.9
通讯作者：
Haruta, Masatake
中科院分区：
文献类型：
--
作者：
Ishida, Tamao;Kuroda, Kyoko;Haruta, Masatake
将金纳米粒子（Au NPs）从二乙二胺金（III）配合物的水溶液中直接沉积到市售的聚合物珠（如聚甲基丙烯酸甲酯（PMMA）、聚苯乙烯（PS）和聚苯胺（PANI））上而不进行表面修饰。发现逐滴添加NaBH 4以还原Au（III）对于获得除PANI之外具有窄尺寸分布的小Au（0）NP是非常有效的。沉积在聚合物颗粒上的Au NPs对H2 O2分解和葡萄糖氧化的催化性能受聚合物载体种类的影响比受Au NPs尺寸的影响更大。在Au/PMMA催化剂上，通过控制H2 O2的分解速率，可以实现等摩尔H2 O2氧化葡萄糖。(C)2008年爱思唯尔公司All rights reserved.
Gold nanoparticles (Au NPs) were deposited directly from aqueous solution of diethylenediaminegold(III) complex onto polymer beads commercially available, such as poly(methyl methacrylate) (PMMA), polystyrene (PS), and polyaniline (PANI) without surface modification. The dropwise addition of NaBH4 to reduce Au(III) was found to be very effective to obtain small Au(0) NPs with a narrow size distribution except for PANI. The catalytic performance of An NPs deposited on polymer beads for H2O2 decomposition and glucose oxidation with H2O2 were more significantly affected by the kinds of polymer supports than by the size of Au NPs. The equimolar oxidation of glucose with H2O2 could be operated by controlling the decomposition rate of H2O2 over Au/PMMA. (C) 2008 Elsevier Inc. All rights reserved.