公开(公告)号：WO2016201041A1

公开(公告)日：2016-12-15

申请号：PCT/US2016/036591

申请日：2016-06-09

申请人： GEORGIA TECH RESEARCH CORPORATION

发明人： XIA, Younan ,  QIN, Dong ,  WANG, Xue ,  CHOI, Sang-II ,  LEE, Rebeca ,  ZHANG, Lei ,  SUN, Xiaojun ,  KIM, Junki ,  ZHAO, Ming

IPC分类号： B22F1/02 ,  B22F1/00 ,  B22F9/00

CPC分类号： B22F9/24 ,  B22F1/0018 ,  B22F2001/0029 ,  B22F2001/0037 ,  B22F2998/10 ,  B22F1/025 ,  B22F2003/244

摘要： A variety of polyhedral nanocages are provided having a hollow interior, ultrathin walls, and well-defined facets of metal atoms. The nanocages can include a variety of precious metals such as Pt, Au, Ru, Rh, or Ir. The metal atoms can take a face-centered cubic structure with {111} facets on the surface. The walls can be thin, sometimes less than 1 nm in thickness or only a few atomic layers in thickness. The nanocages can provide for efficient uses of valuable precious metals, among other things, in catalysis. For example, catalysts are provided exhibiting high mass activities in oxygen reduction reactions. Methods of making and methods of using the nanocages and catalysts are also provided.

摘要翻译： 提供了各种多面体纳米笼，其具有中空的内部，超薄壁和金属原子的明确界面。 纳米笼可以包括各种贵金属如Pt，Au，Ru，Rh或Ir。 金属原子可以在表面具有{111}刻面的面心立方结构。 壁可以是薄的，有时厚度小于1nm或厚度仅有几个原子层。 纳米笼可以提供有价值的贵重金属的用途，尤其是催化剂。 例如，提供在氧还原反应中表现出高质量活性的催化剂。 还提供了制备方法和使用纳米笼和催化剂的方法。