Synthesis of PtRu alloy nanofireworks as effective catalysts toward glycerol electro-oxidation in alkaline media

Nanofirework-like PtRu alloy catalyst has been successfully synthesized and used as an efficient anodic catalyst for glycerol oxidation reaction (GOR) in alkaline medium. [Display omitted] •A class of firework-like bimetallic PtRu alloy nanocatalysts has been successfully fabricated.•The addition of...

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Bibliographic Details
Published in:Journal of colloid and interface science 2022-02, Vol.608 (Pt 1), p.800-808
Main Authors: Ren, Fangfang, Zhang, Zhiqing, Liang, Zhengyun, Shen, Qian, Luan, Yuqian, Xing, Rong, Fei, Zhenghao, Du, Yukou
Format: Article
Language:English
Subjects:
Alkaline medium
Alloys
Catalysis
Electrocatalysis
Fuel cells
Glycerol
Glycerol oxidation
Oxidation-Reduction
Platinum
PtRu
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Summary:Nanofirework-like PtRu alloy catalyst has been successfully synthesized and used as an efficient anodic catalyst for glycerol oxidation reaction (GOR) in alkaline medium. [Display omitted] •A class of firework-like bimetallic PtRu alloy nanocatalysts has been successfully fabricated.•The addition of Ru can effectively tune the electronic structure of Pt and greatly improve the performance of the catalyst.•The electrocatalytic properties of bimetallic PtRu catalysts strongly rely on their chemical composition. Electro-oxidation of glycerol is a key anodic reaction in direct alcohol fuel cell (DAFCs). Exploring the cost-effective nanocatalysts for glycerol oxidation reaction (GOR) is very important for the development of DAFC, but it is still challenging. In this paper, nanofirework-like PtRu alloy catalyst was successfully synthesized and used for GOR in alkaline medium. Thanks to the unique nanofirework-like structure and synergetic effects, the activity and stability of the as-prepared PtRu alloy nanofireworks (NFs) toward GOR were significantly improved relative to Pt NFs. In particular, the peak current density of GOR catalyzed by the optimized Pt1Ru3 NFs catalyst reached 2412.0 mA mg−1, surpassing that of commercial Pt/C catalyst. This work has important guidance for the design of advanced anode electrocatalysts for fuel cells.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2021.10.054