Electrochemically shape-controlled synthesis in deep eutectic solvents of Pt nanoflowers with enhanced activity for ethanol oxidation

被引：92
作者：
Wei, Lu [1 ,2 ]
Fan, You-Jun [1 ]
Wang, Hong-Hui [2 ]
Tian, Na [2 ]
Zhou, Zhi-You [2 ]
Sun, Shi-Gang [2 ]
机构：
[1] Guangxi Normal Univ, Key Lab Chem & Mol Engn Med Resources, Minist Educ China, Coll Chem & Chem Engn, Guilin 541004, Peoples R China
[2] Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn, Xiamen 361005, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2012年 / 76卷
基金：
中国国家自然科学基金;
关键词：
Deep eutectic solvents; Pt nanoflowers; Electrodeposition; Shape-controlled synthesis; Ethanol electrooxidation; HIGH-INDEX FACETS; METHANOL ELECTROOXIDATION; PLATINUM NANOCRYSTALS; METAL NANOPARTICLES; CATALYTIC-ACTIVITY; CHEMICAL-SYNTHESIS; IONIC LIQUIDS; NANOWIRES; ELECTRODEPOSITION; HYDROGENATION;
D O I：
10.1016/j.electacta.2012.05.063
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemically shape-controlled synthesis in deep eutectic solvents (DESs) has been applied to produce the electrocatalyst of Pt nanoflowers. The uniform Pt nanoflowers with sharp single crystal petals and high density of atomic steps were characterized by SEM, TEM, XRD, XPS and electrochemical tests. The results illustrated that the as-prepared Pt nanoflowers exhibit higher electrocatalytic activity and stability than commercial Pt black catalyst toward ethanol electrooxidation. The growth of Pt nanoflowers in DESs by the simple electrochemical route is straightforward and controllable in terms of nanoflowers' shape and size, which can be applied in shape-controlled synthesis of other noble metal nanoparticles with high catalytic activity. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：468 / 474
页数：7
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