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1. 发明申请

WO2012072658A3 PROCESS FOR COATING NANOPARTICLES WITH METAL BY MEANS OF ELECTROLESS DEPOSITION TECHNIQUES 审中-公开
标题翻译：方法用于涂覆金属纳米粒子的电源LOSER沉积
公开(公告)号：WO2012072658A3
公开(公告)日：2013-12-12
申请号：PCT/EP2011071338
申请日：2011-11-30
申请人： UNIV DRESDEN TECH , LOHE MARTIN R , NICKEL WINFRIED , GROTHE JULIA , KASKEL STEFAN
发明人： LOHE MARTIN R , NICKEL WINFRIED , GROTHE JULIA , KASKEL STEFAN
IPC分类号： C23C18/16 , B82B3/00 , B82Y30/00 , C23C18/18
CPC分类号： C23C18/1639 , B01J13/02 , B82Y30/00 , B82Y40/00 , C23C18/1658 , C23C18/1662 , C23C18/1882 , C23C18/31
摘要： The present invention relates to a process for coating nanoparticles with metal by means of an electroless deposition technique. The process does not use expensive noble metal salts and reducing agents and can be carried out in water as solvent and at low temperatures. The homogeneous metal-coated nanoparticles are particularly suitable for use as fillers in metal-matrix composites, in which the deposited metal layer functions as dispersion compatibilizer between non-metallic nanoparticles and metal matrix. The introduction of such metal-coated nanoparticles produced according to the invention into metals is easier compared to unfunctionalized particles in the case of which agglomerate formation occurs, which significantly reduces the production costs for the metal-matrix composites. The process of the invention comprises the steps: a) thiol functionalization of the surface of the nanoparticles, b) contacting of the nanoparticles with an aqueous metal salt solution, c) addition of a reducing agent which reduces the metal salt solution, as a result of which deposition of metal on the nanoparticles occurs.
摘要翻译：本发明涉及一种通过电沉积涂覆金属纳米颗粒的方法。过程做而无需使用昂贵的贵金属的盐和还原剂的并且可以在水作为溶剂并在低温下进行。将均匀的金属涂覆的纳米颗粒特别适合于用作金属基复合材料的填料，其中，所述沉积的金属层用作所述非金属纳米颗粒和金属基体之间的分散体启动子。根据本发明在金属，例如金属涂覆的纳米颗粒的掺入进行比较，未官能化的颗粒，其中附聚发生变得更容易，这显著减少了金属基复合材料的制造成本。本发明的方法包括以下步骤：a）Thiolfunktionalisierung纳米粒子表面，b）用金属盐水溶液接触纳米颗粒，c）将降低所述金属盐溶液，由此存在于纳米粒子的金属沉积的还原剂。

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