Structural Evolution of Solid Pt Nanoparticles to a Hollow PtFe Alloy with a Pt-Skin Surface via Space-Confined Pyrolysis and the Nanoscale Kirkendall Effect

Structural Evolution of Solid Pt Nanoparticles to a Hollow PtFe Alloy with a Pt-Skin Surface via Space-Confined Pyrolysis and the Nanoscale Kirkendall Effect
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通过空间限制热解和纳米级柯肯德尔效应,固体 Pt 纳米颗粒向具有 Pt 皮表面的空心 PtFe 合金的结构演化

DOI:
10.1002/adma.201603509
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发表时间:
2016
期刊:
影响因子:
29.4
通讯作者:
Wei Zidong
Wei Zidong
中科院分区:
材料科学1区
文献类型:
--
作者:
Wang Qingmei;Chen Siguo;Shi Feng;Chen Ke;Nie Yao;Wang Yao;Wu Rui;Li Jia;Zhang Yun;Ding Wei;Li Yang;Li Li;Wei Zidong

文献摘要

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开发了一种空间限制界面转换方法,可将 3 nm 固体 Pt 纳米颗粒直接转化为具有 Pt 皮表面的 5 nm 空心 PtFe 合金。所提出的从固体 Pt NP 到尺寸、结构和成分受控的空心 PtFe 合金的结构演变的方法可应用于其他多金属电催化剂。
A space-confined interfacial conversion approach is developed to directly transform 3 nm solid Pt nanoparticles into a 5 nm hollow PtFe alloy featuring a Pt-skin surface. The approach presented for the structural evolution from solid Pt NPs to hollow PtFe alloy with controlled size, structure, and composition can be applied to other multimetallic electrocatalysts.