期刊
CHEMICAL ENGINEERING JOURNAL
卷 428, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.131070
关键词
Pt-based catalysts; Porous structure; Nanowires; Core-shell structure; Oxygen reduction reaction
资金
- National Natural Science Foundation of China [21601154, 21776255, 21972126, 21978264, 21905250]
The study introduces a facile method to synthesize Au@PdPt porous nanowire architecture which shows superior catalytic performance for electrocatalytic oxygen reduction reaction. This synthetic strategy can be widely used for preparing porous core-shell structured metallic nanowires for various electrocatalytic applications.
The design of porous one-dimensional (1D) Pt-based nanoarchitectures is significant for fuel cells. The incorporation of Au into Pt-based electrocatalysts is an efficient strategy to enhance its electrocatalytic performance. In this work, we propose a facile strategy to synthesize Au@PdPt porous nanowire architecture with an Au nanowire (Au NW) as the core and a porous PdPt surface as the shell (Au@PdPt pNWs). 1D core-shell nanoarchitectures with porous surface provide sufficient active sites and rich reactant transfer channels for O2 adsorption and activation. Compared with PdPt mesoporous nanoparticles and commercial Pt/C catalyst, the Au@PdPt pNWs show superior catalytic performance for electrocatalytic oxygen reduction reaction. The present synthetic strategy can be widely used for the preparation of porous core-shell structured metallic nanowires for various electrocatalytic applications.
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