Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 695, Issue -, Pages 2612-2618Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.11.168
Keywords
Magnetite; Petroleum asphalt; Mesoporous carbon; Recyclable template; Lithium-ion battery
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Funding
- National Natural Science Foundation of China [51372028, 21302224, 51372277]
- Fundamental Research Fund for the Central Universities [15CX08005A]
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In this work, a green and template-recyclable method was designed to obtain Fe3O4/petroleum asphalt based carbons (Fe3O4/PC) with different Fe3O4 contents as anode material for Li-ion batteries. 73-Fe3O4/PC with 73% Fe3O4 can deliver a high reversible capacity of 785 mAh g(-1) at 200 mA g(-1) with excellent stability. The superior electrochemical performance of as-made Fe3O4/PC is attributed to the good electrical conductivity of carbon framework from asphalt and its dimensional confinement on Fe3O4 nanoparticles. This study not only demonstrates a green and economical route for high-value utilization of petroleum asphalt in energy storage, but also paves a new way for the preparation of porous carbon via recyclable template, which is indispensable for green chemistry. (C) 2016 Elsevier B.V. All rights reserved.
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