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

Jia Sun; Jun Hu; Jie Han; Ganyin Yuan; Rong Guo

doi:10.1021/acs.langmuir.9b02237

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

Langmuir. 2019 Oct 1;35(39):12704-12710. doi: 10.1021/acs.langmuir.9b02237. Epub 2019 Sep 18.

Authors

Jia Sun¹, Jun Hu¹, Jie Han¹, Ganyin Yuan¹, Rong Guo¹

Affiliation

¹ School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou , Jiangsu 225002 , P. R. China.

PMID: 31490690
DOI: 10.1021/acs.langmuir.9b02237

Abstract

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 nanoparticles showed improved catalytic activity and stability toward the liquid-phase 4-nitrophenol reduction and β-ionone oxidation, making them a promising candidate for catalysis applications.