Strengthening oxygen reduction activity and stability of carbon-supported platinum nanoparticles by fluorination

被引：10
|
作者：
Li, Ziheng [1 ]
Sui, Lijun [1 ]
Calvillo, Laura [2 ]
Alonso-Vante, Nicolas [3 ]
Ma, Jiwei [1 ]
机构：
[1] Tongji Univ, Sch Mat Sci & Engn, Inst New Energy Vehicles, Shanghai Key Lab R&D & Applicat Metall Funct Mat, Shanghai 201804, Peoples R China
[2] Univ Padua, Dept Chem Sci, Via Marzolo 1, I-35131 Padua, Italy
[3] Univ Poitiers, IC2MP, UMR CNRS 7285, 4 Rue Michel Brunet, F-86073 Poitiers, France
来源：
ELECTROCHIMICA ACTA | 2021年 / 399卷
关键词：
Fluorinated carbon; C-F bonding; Platinum nanoparticles; Interaction; Oxygen reduction reaction; METAL-FREE ELECTROCATALYSTS; MEMBRANE FUEL-CELLS; CATALYSTS; GRAPHENE; CHALLENGES; SURFACE;
D O I：
10.1016/j.electacta.2021.139409
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
By combining experimental and theoretical aspects, this study focuses on exploring and enhancing the activity and stability towards oxygen reduction reaction (ORR) of fluorinated carbon supported platinum nanoparticles in the acidic electrolyte. Physical characterization results revealed that fluorinated carbon support generates a C-F bonding. The interaction between Pt and fluorinated-carbon allows for a strong charge transfer from Pt to the support. This phenomenon is consistent with the density functional theory (DFT) analysis. Because of the fluorination, the electronic structure of Pt is changed, which is an advantage for improving the catalytic activity and stability of the catalyst towards ORR. (c) 2021 Elsevier Ltd. All rights reserved.
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页数：7
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