Energies 2013, 6(9), 4830-4840; doi:10.3390/en6094830
Article

Electrostatic Self-Assembly of Fe3O4 Nanoparticles on Graphene Oxides for High Capacity Lithium-Ion Battery Anodes

1email, 1email, 2email and 1,* email
Received: 19 July 2013; in revised form: 22 August 2013 / Accepted: 29 August 2013 / Published: 12 September 2013
(This article belongs to the Special Issue Li-ion Batteries and Energy Storage Devices)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Magnetite, Fe3O4, is a promising anode material for lithium ion batteries due to its high theoretical capacity (924 mA h gāˆ’1), high density, low cost and low toxicity. However, its application as high capacity anodes is still hampered by poor cycling performance. To stabilize the cycling performance of Fe3O4 nanoparticles, composites comprising Fe3O4 nanoparticles and graphene sheets (GS) were fabricated. The Fe3O4/GS composite disks of mm dimensions were prepared by electrostatic self-assembly between negatively charged graphene oxide (GO) sheets and positively charged Fe3O4-APTMS [Fe3O4 grafted with (3-aminopropyl)trimethoxysilane (APTMS)] in an acidic solution (pH = 2) followed by in situ chemical reduction. Thus prepared Fe3O4/GS composite showed an excellent rate capability as well as much enhanced cycling stability compared with Fe3O4 electrode. The superior electrochemical responses of Fe3O4/GS composite disks assure the advantages of: (1) electrostatic self-assembly between high storage-capacity materials with GO; and (2) incorporation of GS in the Fe3O4/GS composite for high capacity lithium-ion battery application.
Keywords: lithium-ion battery; anode; iron oxide; magnetite; graphene; self-assembly
PDF Full-text Download PDF Full-Text [3811 KB, uploaded 12 September 2013 14:21 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Yoon, T.; Kim, J.; Kim, J.; Lee, J.K. Electrostatic Self-Assembly of Fe3O4 Nanoparticles on Graphene Oxides for High Capacity Lithium-Ion Battery Anodes. Energies 2013, 6, 4830-4840.

AMA Style

Yoon T, Kim J, Kim J, Lee JK. Electrostatic Self-Assembly of Fe3O4 Nanoparticles on Graphene Oxides for High Capacity Lithium-Ion Battery Anodes. Energies. 2013; 6(9):4830-4840.

Chicago/Turabian Style

Yoon, Taegyune; Kim, Jaegyeong; Kim, Jinku; Lee, Jung K. 2013. "Electrostatic Self-Assembly of Fe3O4 Nanoparticles on Graphene Oxides for High Capacity Lithium-Ion Battery Anodes." Energies 6, no. 9: 4830-4840.

Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert