Abstract
This paper describes a simple CO-assisted reduction approach for the controllable synthesis of ultrathin Pd nanowires along the one-dimensional (1D) direction. Ultrathin Pt films from one to several atomic layers were successfully decorated onto ultrathin Pd nanowires by utilizing Cu UPD deposition, and followed by in-situ redox replacement reaction of UPD Cu by Pt. The core–shell structure and composition of the Pd@Pt ultrathin nanowires have been verified using transmission electron microscopy and energy dispersive X-ray spectrometry. The core–shell Pd@Pt ultrathin nanowires exhibited comparative electrocatalytic activity and improved durability for the oxygen reduction reaction in comparison with commercial Pt black. The enhanced durability of the core-shell Pd@Pt catalyst could be ascribed to 1D structural stability.
Graphical Abstract
Keywords
oxygen reduction reaction, electrocatalysis, Pd core/Pt shell, ultrathin nanowire, durability
Publication Date
2017-12-28
Online Available Date
2017-03-03
Revised Date
2017-03-01
Received Date
2017-01-13
Recommended Citation
Xin WANG, Yun-jie XIONG, Liang-liang ZOU, Qing-hong HUANG, Zhi-qing ZOU, Hui YANG.
Core-shell Pd@Pt Ultrathin Nanowires as Durable Oxygen Reduction Electrocatalysts[J]. Journal of Electrochemistry,
2017
,
23(6): 619-626.
DOI: 10.13208/j.electrochem.170113
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol23/iss6/1
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