1. Synthesis of PtRu alloy nanofireworks as effective catalysts toward glycerol electro-oxidation in alkaline media.
- Author
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Ren, Fangfang, Zhang, Zhiqing, Liang, Zhengyun, Shen, Qian, Luan, Yuqian, Xing, Rong, Fei, Zhenghao, and Du, Yukou
- Subjects
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CATALYSTS , *ELECTROLYTIC oxidation , *BIMETALLIC catalysts , *ALCOHOL as fuel , *ALLOYS , *FUEL cells , *GLYCERIN - Abstract
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 Pt 1 Ru 3 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. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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