Hollow SnO2@Co3O4 core-shell spheres encapsulated in three-dimensional graphene foams for high performance supercapacitors and lithium-ion batteries
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AbstractHollow SnO2@Co3O4 spheres are fabricated using 300 nm spherical SiO2 particles as template. Then three-dimensional graphene foams encapsulated hollow SnO2@Co3O4 spheres are successfully obtained through self-assembly in hydrothermal process from graphene oxide nanosheets and metal oxide hollow spheres. The three-dimensional graphene foams encapsulated architectures could greatly improve the capacity, cycling stability and rate capability of hollow SnO2@Co3O4 spheres electrodes due to the highly conductive networks and flexible buffering matrix. The three-dimensional graphene foams encapsulated hollow SnO2@CO3O4 spheres are promising electrode materials for supercapacitors and lithium-ion batteries. (C) 2015 Elsevier B.V. All rights reserved.
All Author(s) ListZhao B, Huang SY, Wang T, Zhang K, Yuen MMF, Xu JB, Fu XZ, Sun R, Wong CP
Journal nameJournal of Power Sources
Volume Number298
Pages83 - 91
LanguagesEnglish-United Kingdom
KeywordsCore-shell structure; Electrochemical capacitors; Lithium-ion batteries; Metal oxide hollow spheres; Three-dimensional graphene foams
Web of Science Subject CategoriesChemistry; Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science; Materials Science, Multidisciplinary

Last updated on 2020-01-12 at 01:22