Single Pt-Pd Bimetallic Nanoparticle Electrode: Controllable Fabrication and Unique Electrocatalytic Performance for the Methanol Oxidation Reaction
Single Pt-Pd Bimetallic Nanoparticle Electrode: Controllable Fabrication and Unique Electrocatalytic Performance for the Methanol Oxidation Reaction
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单 Pt-Pd 双金属纳米粒子电极：甲醇氧化反应的可控制造和独特的电催化性能
DOI：
10.1002/chem.201900076
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Li Yongxin
中科院分区：
文献类型：
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作者：
Tang Haoran;Hao Huan;Zhu Jiahui;Guan Xianping;Qiu Baijing;Li Yongxin
了解单个纳米粒子/纳米团簇水平的电催化活性是非常重要的。在这项工作中，描述了使用单个纳米孔电极作为模板电沉积单个Pt-Pd纳米颗粒（NP）的方法。研究结果表明，电沉积过程受扩散和电结晶过程的共同控制，纳米孔周围的玻璃鞘层性质由于“边缘效应”对单个Pt-Pd纳米粒子的形成有很大的影响。所制备的单一Pt-Pd纳米粒子在甲醇氧化反应中表现出优异的电催化活性，可用于筛选高效的能源领域电催化剂。
Understanding the electrocatalytic activity at single nanoparticles/nanoclusters level is extremely important. In this work, a method for the electro‐deposition of single Pt–Pd nanoparticles (NPs) is described using a single nanopore electrode as a template. The electro‐deposition process was investigated carefully and the results show that the process is controlled by diffusion and electro‐crystallization process, simultaneously, and the glass sheath property around the nanopore has a large impact on the formation of single Pt–Pd NPs due to the “edge effect”. The prepared single Pt–Pd NPs exhibit excellent electrocatalytic activity in the methanol oxidation reaction, which can be used to screen electrocatalysts with high efficiency for utility in the energy field.