Atomically Thick Pt-Cu Nanosheets: Self-Assembled Sandwich and Nanoring-Like Structures
Atomically Thick Pt-Cu Nanosheets: Self-Assembled Sandwich and Nanoring-Like Structures
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DOI：
10.1002/adma.201405319
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发表时间：
2015-03-25
影响因子：
29.4
通讯作者：
Wang, Xun
中科院分区：
文献类型：
--
作者：
Saleem, Faisal;Xu, Biao;Wang, Xun
制备了具有原子厚度和柔性的Pt- cu合金纳米片，并分别负载了Pd或Pt，形成了三明治结构或纳米状纳米片结构。还制备了含有Rh、Ir和Ru的核壳合金纳米颗粒。与商用Pd/C催化剂相比，所有这些结构对用于便携式电子设备的燃料电池的甲酸氧化具有优越的比活性和质量活性。
Atomically thick and flexible Pt-Cu alloy nanosheets are prepared and loaded with either Pd or Pt to produce sandwich structures or nanoring-like nanosheet structures, respectively. Core-shell alloy nanoparticles containing Rh, Ir, and Ru are also prepared. All of these structures exhibit superior specific and mass activities for the oxidation of formic acid for fuel cells for portable electronic devices as compared to commercial Pd/C catalyst.