Dumbbell-like Pt-Fe3O4 Nanoparticles Encapsulated in N-Doped Carbon Hollow Nanospheres as a Novel Yolk@Shell Nanostructure toward High-Performance Nanocatalysis

被引:36
|
作者
Sun, Jia [1 ]
Hu, Jun [1 ]
Han, Jie [1 ]
Yuan, Ganyin [1 ]
Guo, Rong [1 ]
机构
[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
SHAPE-CONTROLLED SYNTHESIS; CATALYTIC-ACTIVITY; OXIDATION; REDUCTION;
D O I
10.1021/acs.langmuir.9b02237
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Noble metal-Fe3O4 dumbbell-like nanoparticles have aroused considerable attention because of their high potential as heterogeneous nanocatalysts. The designed synthesis of the advanced architecture of noble metal-Fe3O4 dumbbell-like nanoparticles with both improved catalytic activity and stability is still a challenge. Herein, through the combination of yolk@shell and dumbbell-like nanostructures, dumbbell-like Pt-Fe3O4 nanoparticles encapsulated in N-doped carbon hollow nanospheres (Pt-Fe3O4@N-carbon) as a special yolk@ shell nanostructure were developed. In comparison with Pt-Fe3O4 dumbbell-like nanoparticles, Pt-Fe3O4@N-carbon yolk@shell nano particles showed improved catalytic activity and stability toward the liquid-phase 4-nitrophenol reduction and beta-ionone oxidation, making them a promising candidate for catalysis applications.
引用
收藏
页码:12704 / 12710
页数:7
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