High temperature self-assembly one-step synthesis of a structurally ordered PtFe catalyst for the oxygen reduction reaction
High temperature self-assembly one-step synthesis of a structurally ordered PtFe catalyst for the oxygen reduction reaction
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高温自组装一步合成结构有序的 PtFe 氧还原催化剂
DOI：
10.1039/c9cc05714e
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发表时间：
2019
影响因子：
4.9
通讯作者：
Wei Zidong
中科院分区：
文献类型：
--
作者：
Gao Xiaoyan;Chen Siguo;Deng Jianghai;Ibraheem Shumaila;Li Jia;Zhou Qiuyun;Lan Huiying;Zou Xiao;Wei Zidong
在此，我们提出了一种高温自组装策略，通过整合还原和相变，直接允许吸附的 Pt(NH3)42+ 和 Fe3+ 源转化为结构有序的面心四方 (fct)-PtFe 合金纳米颗粒 (2.6 ± 0.2 nm)。 fct-PtFe合金纳米粒子的小尺寸和有序的原子排列，加上坚固的NC保护壳，使这些纳米粒子对氧还原反应表现出优异的催化活性和稳定性。
Herein, we present a high-temperature self-assembly strategy that directly allows the transformation of adsorbed Pt(NH3)42+ and Fe3+ sources into structurally ordered face-centered tetragonal (fct)-PtFe alloy NPs (2.6 ± 0.2 nm) by integrating reduction and phase transformation. The small-size and ordered atomic arrangement of the fct-PtFe alloy NPs, together with their robust NC protective shell, make these NPs exhibit excellent catalytic activity and stability for the oxygen reduction reaction.