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1. 发明申请

US20150236354A1 COLLOIDAL DISPERSIONS COMPRISING PRECIOUS METAL PARTICLES AND ACIDIC lONOMER COMPONENTS AND METHODS OF THEIR MANUFACTURE AND USE 审中-公开
标题翻译：包含重金属颗粒和酸性成分组分的胶体分散体及其制备和使用方法
公开(公告)号：US20150236354A1
公开(公告)日：2015-08-20
申请号：US14414979
申请日：2013-08-29
申请人： SOLVICORE GMBH & CO. KG
发明人： Matthias Binder , Gerhard Heinz , Alessandro Ghielmi , Holger Dziallas , Volker Baenisch
IPC分类号： H01M4/92 , H01M4/86
CPC分类号： H01M4/92 , B01J13/0043 , C25B11/0442 , H01M4/8663 , H01M4/8828 , H01M4/921 , H01M4/925 , H01M4/926
摘要： The invention relates to colloidal dispersions comprising nano-sized precious metal particles (e.g. platinum or platinum alloy particles) and at least one ionomer component having acidic groups. The method for its manufacturing is based on a neutralization and dissolving process of a suitable precious metal precursor compound with a liquid acidic ionomer component, followed by a reduction step. Suitable precious metal precursors consist of precious metal atoms, hydrogen atoms, oxygen atoms and optionally carbon atoms. Examples for precursors are H2Pt(OH)6, Pd(OH)2 or Ir(OH)4, preferred reducing agents are aliphatic alcohols or hydrogen. The invention further relates to pre-products for the manufacture of such colloidal dispersions, namely to compositions which contain precious metal precursors and at least one acidic ionomer compound. The colloidal precious metal dispersions can be used for the preparation of catalyst inks, ionomer layers, catalyst layers, electrodes or composite catalyst materials and find broad application in fuel cell technology.
摘要翻译：本发明涉及包含纳米尺寸的贵金属颗粒（例如铂或铂合金颗粒）和至少一种具有酸性基团的离聚物组分的胶体分散体。其制造方法基于合适的贵金属前体化合物与液体酸性离聚物组分的中和和溶解过程，随后还原步骤。合适的贵金属前体由贵金属原子，氢原子，氧原子和任选的碳原子组成。前体的实例是H 2 Pt（OH）6，Pd（OH）2或Ir（OH）4，优选的还原剂是脂族醇或氢。本发明还涉及用于制造这种胶体分散体的预制品，即含有贵金属前体和至少一种酸性离聚物化合物的组合物。胶态贵金属分散体可用于制备催化剂油墨，离聚物层，催化剂层，电极或复合催化剂材料，并在燃料电池技术中得到广泛应用。

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