一种通用的制备 Pt3d-过渡金属（Co、Fe、Ni）纳米立方体的策略。
A general strategy for preparation of Pt 3d-transition metal (Co, Fe, Ni) nanocubes.
机构信息
Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, USA.
出版信息
J Am Chem Soc. 2009 Dec 30;131(51):18543-7. doi: 10.1021/ja908245r.
A facile, reliable, general, and robust synthetic method for preparation of high-quality, (100)-terminated Pt(3)M nanocubes (M = Pt or 3d-transition metals Co, Fe, and Ni) has been developed. It was identified that addition of W(CO)(6) is crucial for control of the nucleation process when the metallic precursors are reduced, whereas an optimized ratio of the solvent pair, oleylamine and oleic acid, is the key to enabling the lowest total surface energy on {100} facets in order to develop cubic nanocrystals in the present system. The resultant monodisperse nanocubes, in which Pt is partially substituted, are expected to exhibit unusual electrocatalytic characteristics, providing an alternative for developing high-performance electrocatalysts for use in fuel cells.
一种简便、可靠、通用且稳健的合成方法，用于制备高质量的（100）-端 Pt(3)M 纳米立方体（M = Pt 或 3d 过渡金属 Co、Fe 和 Ni）已经被开发出来。研究发现，当金属前体被还原时，添加 W(CO)(6)对于控制成核过程至关重要，而溶剂对（油胺和油酸）的优化比例是在本体系中使 {100} 面的总表面能最低，从而开发立方纳米晶体的关键。所得的部分取代 Pt 的单分散纳米立方体有望表现出异常的电催化特性，为开发用于燃料电池的高性能电催化剂提供了一种选择。
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