‘Casting’ nanoporous nanowires: revitalizing the ancient process for designing advanced catalysts†,Journal of Materials Chemistry A

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‘Casting’ nanoporous nanowires: revitalizing the ancient process for designing advanced catalysts†
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2018-05-16 00:00:00 , DOI: 10.1039/c8ta01989d
Ying Wang _{1,

2,

3,

4,

5} , Tianyi Kou _{6,

7,

8,

9} , Hui Gao _{1,

2,

3,

4,

5} , Jiazheng Niu _{1,

2,

3,

4,

5} , Jie Zhang _{1,

2,

3,

4,

5} , Lanfen Lv _{1,

2,

3,

4,

5} , Zhangquan Peng _{5,

10,

11,

12,

13} , Zhonghua Zhang _{1,

2,

3,

4,

5}

Affiliation

Eutectic reaction frequently occurs in metallurgical solidification of alloy melts, and has been widely studied for traditional structural and engineering applications for decades. Here, we inject new blood into this ancient process and develop its novel application in the general preparation of advanced nanostructured materials. Based upon solidification control and dealloying inheritance effect, we ‘cast’ advanced M (M = Pt, Pd or PdPt)–Ni nanoporous nanowires (NPNWs) via a novel eutectic-directed self-templating strategy. The PdPtNi NPNWs exhibit impressively enhanced electrocatalytic performance towards ethylene glycol and glycerol electrooxidation in an alkaline electrolyte compared to commercial Pt/C (40 wt%), as evidenced by enhanced electrocatalytic activity, better anti-poisoning property and stability. The superior electrocatalytic performance of PdPtNi NPNWs originates from its unique nanoporous nanowire network structure, alloying effect of Ni, modified electronic states of Pd/Pt and synergistic interactions between Pt, Pd and Ni.

中文翻译：

“铸造”纳米多孔纳米线：振兴设计高级催化剂的古老工艺†

共晶反应经常发生在合金熔体的冶金凝固中，并且几十年来已经在传统的结构和工程应用中进行了广泛的研究。在这里，我们向这个古老的过程注入了新的血液，并开发了其在先进纳米结构材料的一般制备中的新应用。基于凝固控制和脱合金继承效应，我们“铸造”先进M（M =铂，钯或PDPT）-Ni纳米多孔纳米线（NPNWs）经由一种新颖的以共晶为导向的自我模板化策略。与商业化的Pt / C（40 wt％）相比，PdPtNi NPNWs在碱性电解质中对乙二醇和甘油的电氧化表现出令人印象深刻的增强的电催化性能，这可以通过增强的电催化活性，更好的抗中毒性能和稳定性来证明。PdPtNi NPNWs优异的电催化性能源于其独特的纳米多孔纳米线网络结构，Ni的合金化作用，Pd / Pt的修饰电子态以及Pt，Pd和Ni之间的协同相互作用。

更新日期：2018-05-16

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