Graphene/acid assisted facile synthesis of structure-tuned Fe3O4 and graphene composites as anode materials for lithium ion batteries

Autor:	Xia Yang, Ying San Chui, Ruguang Ma, Kam Chuen Yung, Juan Antonio Zapien, Yucheng Dong, Jong-Min Lee
Rok vydání:	2015
Předmět:	Materials science Graphene Reducing agent Inorganic chemistry Nanoparticle General Chemistry Electrochemistry Hydrothermal circulation Anode law.invention chemistry.chemical_compound chemistry law General Materials Science Composite material Citric acid Mesoporous material
Zdroj:	Carbon. 86:310-317
ISSN:	0008-6223
Popis:	Structure-tuned Fe 3 O 4 and graphene composites were prepared using a facile graphene/acid assisted facile one-pot hydrothermal method. The structural characteristics of Fe 3 O 4 can be tuned by adjusting the initial molar ratio between iron acetylacetonate and citric acid. The citric acid serves dual function as a reducing agent during the production of Fe 3 O 4 nanoparticles (NPs), and as a bridging agent which under optimized conditions can result in mesoporous Fe 3 O 4 nanospheres (NSs) self-assembled by numerous Fe 3 O 4 NPs. The fabricated mesoporous Fe 3 O 4 NSs and graphene composites were evaluated as potential anode materials for lithium ion batteries. These composites exhibit better electrochemical performance with high reversible capacity, good rate capability and cyclic stability derived from their unique mesoporous structural features.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::48606b02df4154d2997d71efa04bb0cd https://doi.org/10.1016/j.carbon.2015.01.062 Zobrazit plný text záznamu Full Text from ScienceDirect