One-step synthesis in deep eutectic solvents of Pt3Sn1-SnO2 alloy nanopore on carbon nanotubes for boosting electro-catalytic methanol oxidation

被引：0
|
作者：
Yang, Pingping [1 ]
Li, Yuhong [1 ]
Chen, Shiru [1 ]
Li, Jiao [1 ]
Zhao, Pengcheng [1 ]
Zhang, Li [1 ]
Xie, Yixi [2 ]
Fei, Junjie [1 ,2 ,3 ]
机构：
[1] Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan,411105, China
[2] Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan,411105, China
[3] Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan,411105, China
来源：
Journal of Electroanalytical Chemistry | 2021年 / 887卷
基金：
中国国家自然科学基金;
关键词：
Direct methanol fuel cells (DMFC) - Eutectics - Multiwalled carbon nanotubes (MWCN) - Catalytic oxidation - Methanol fuels - Nanopores - Tin alloys - Platinum alloys - Electrocatalysts - Organic solvents;
D O I：
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中图分类号：
学科分类号：
摘要：
A bimetallic catalyst, Pt3Sn1-SnO2 alloy nanopore (ANNP) supported on multi-walled carbon nanotubes (MWCNTs) was prepared in a new media: deep eutectic solvents (DESs) (referred to Pt3Sn1-SnO2/CNTs-D). TEM and other characterization results show that DESs leads to the formation of pores, which is conducive to catalysis. The Pt3Sn1-SnO2/CNTs-D showed higher catalytic performance toward methanol and better CO anti-poisoning capability (peak current: 316.2 mA mgPt−1, onset potential: 0.38 V, peak potential: 0.55 V) compared with Pt/CNTs-D (synthesised in DESs) (200.1 mA mgPt−1, 0.46 V, 0.59 V), Pt/CNTs-W (synthesized in water) (110.8 mA mgPt−1, 0.65 V, 0.68 V) and commercial Pt/C (75.3 mA mgPt−1, 0.57 V, 0.65 V). This study suggests an appropriate strategy for preparation of Pt-based electrocatalysts with high performance for direct methanol fuel cells (DMFCs) applications. © 2021 Elsevier B.V.
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