Green and facile synthesis of Fe3O4 and graphene nanocomposites with enhanced rate capability and cycling stability for lithium ion batteries

Autor:	Jong-Min Lee, Zhenyu Zhang, Juan Antonio Zapien, Ying-San Chui, Yang Xia, Yucheng Dong
Rok vydání:	2015
Předmět:	Nanocomposite Materials science Renewable Energy Sustainability and the Environment Graphene Oxide chemistry.chemical_element Nanotechnology General Chemistry Electrochemistry Anode law.invention Ion chemistry.chemical_compound chemistry law General Materials Science Lithium Nanorod
Zdroj:	Journal of Materials Chemistry A. 3:16206-16212
ISSN:	2050-7496 2050-7488
Popis:	A novel facile and environmentally friendly strategy was developed to prepare Fe3O4 and graphene (Fe3O4/G) nanocomposites through in situ thermal reduction of FeOOH nanorods and graphene oxide (GO) nanocomposites, in which GO serves as a structural platform to uniformly incorporate as-prepared FeOOH nanorods via mutual electrostatic interactions. In the preparation process, GO was added into a FeOOH solution by two steps which are beneficial to form well confined nanocomposites. As anode materials for lithium ion batteries, the Fe3O4/G nanocomposites exhibited significantly enhanced electrochemical performance with excellent cycling stability and a high reversible capacity of ∼1200 mA h g−1 at a current density of 1000 mA g−1 after long-term testing for 1000 cycles, and a remarkable rate capability of ∼660 mA h g−1 at 5000 mA g−1, thus exhibiting great potential as advanced anode materials for lithium ion batteries.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4fbcba4af307dee917a72e2cf3b6b38d https://doi.org/10.1039/c5ta03690a Zobrazit plný text záznamu