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首页> 外文期刊>ACS applied materials & interfaces >Engineering Spiny PtFePd@PtFe/Pt Core@Multishell Nanowires with Enhanced Performance for Alcohol Electrooxidation
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Engineering Spiny PtFePd@PtFe/Pt Core@Multishell Nanowires with Enhanced Performance for Alcohol Electrooxidation

机译：Engineering Spiny PTFepd @ PTFE / PT核心@ MultiShell纳米线，具有增强的酒精电氧化性能

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摘要

Engineering robust electrocatalysts is always a key point in direct alcohol fuel cells. Catalysts with a one-dimension (1D) structure are well studied and considered as promising candidates among various catalysts in the past decades; however, the precise regulation on the surface structure of 1D nanomaterials is still a worthy subject. By creatively introducing a trimetallic nanoalloy, core@multishell structure, and 1D nanowire (NW) morphology, we have constructed a kind of novel spiny PtFePd@PtFe/Pt core@multishell 1D NW catalysts with PtFePd as the core and PtFe/Pt as the multishell on the basis of improving catalytic property. The composition-optimized Pt5FePd2 1D NWs display remarkable catalytic properties for ethanol oxidation reaction and methanol oxidation reaction, in which mass activities are 4.965 and 4.038 A mg(-1), 4.6 and 5.0 and 4.0 and 9.2-fold higher than Pt/C and Pd/C catalysts. Furthermore, the obtained Pt5FePd2 NWs can also retain favorable stability after durability tests. The unique core@multishell structure, spiny 1D NWs with many steps and kinks, and interior electronic and synergistic effect all contribute to the advanced catalytic performance. The present work has rationally designed the novel 1D PtFePd@PtFe/Pt core@multishell NW catalysts and offered a meaningful guideline for the designing of high-performance electrocatalysts.
机译：工程强大的电催化剂始终是直接酒精燃料电池的关键点。具有一维（1D）结构的催化剂进行了很好地研究，并被认为是过去几十年中各种催化剂中的承诺候选人;然而，1D纳米材料表面结构的精确调节仍然是一个有价值的主题。通过创造性地引入三种子纳米铝合金，核心@ multihell结构和1D纳米线（NW）形态，我们已经建造了一种新型的Spiny PTFepd @ PTFE / Pt核心@ MultiShell 1D NW催化剂，用PTFepd作为核心和PTFE / PT作为核心和PTFE / PT Multishell在改善催化性质的基础上。组合物优化的Pt5Fepd2 1D NWS显示出乙醇氧化反应和甲醇氧化反应的显着催化性质，其中质量活性为4.965和4.038毫克（-1），4.6和5.0和4.0和9.2倍，高于Pt / c和PD / C催化剂。此外，所获得的PT5FePD2NW也可以在耐久性测试后保持有利的稳定性。独特的核心@ Multishell结构，多刺的1D NWS具有许多步骤和扭结，内部电子和协同效果都有助于先进的催化性能。目前的工作合理设计了新颖的1D PTFepd @ PTFE / PT核心@ Multishell NW Catalysts，并为设计的高性能电催化剂设计了有意义的指导方针。

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