Chitosan-stabilized gold, gold-palladium, and gold-platinum nanoclusters as efficient catalysts for aerobic oxidation of alcohols
Chitosan-stabilized gold, gold-palladium, and gold-platinum nanoclusters as efficient catalysts for aerobic oxidation of alcohols
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DOI：
10.1016/j.molcata.2011.03.019
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发表时间：
2011-05-03
影响因子：
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通讯作者：
Sakurai, Hidehiro
中科院分区：
文献类型：
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作者：
Murugadoss, Arumugam;Sakurai, Hidehiro
以壳聚糖为稳定剂合成了Au、AuPd和AuPt纳米团簇。所产生的NC具有窄的粒径分布，粒径小于2.3 nm的直径，并通过各种技术，如紫外-可见光谱，X-射线衍射，X-射线光电子能谱，透射电子显微镜和扫描电子显微镜能量色散谱（STEM-EDS）进行了表征。这些金属纳米碳对各种醇的有氧氧化在环境条件下表现出高的催化活性与报道的Au：PVP催化剂。经壳聚糖保护的Au纳米粒子易于回收重复使用。(C)2011 Elsevier B. V.保留所有权利。
Chitosan was used as a stabilizer for the synthesis of Au, AuPd and AuPt nanoclusters (NCs). The produced NCs had a narrow particle size distribution with sizes less than 2.3 nm in diameter and were characterized by various techniques such as UV-Visible spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and scanning electron microscope energy dispersive spectroscopy (STEM-EDS). These metal NCs exhibited high catalytic activity toward the aerobic oxidation of various alcohols under ambient conditions comparable with the reported Au:PVP catalyst. Au NCs protected by chitosan could easily be recovered for repeated use. (C) 2011 Elsevier B.V. All rights reserved.