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Title: Scalable synthesis of Fe₃O₄ nanoparticles anchored on graphene as a high-performance anode for lithium ion batteries

Abstract

We report a scalable strategy to synthesize Fe₃O₄/graphene nanocomposites as a high-performance anode material for lithium ion batteries. In this study, ferric citrate is used as precursor to prepare Fe₃O₄ nanoparticles without introducing additional reducing agent; furthermore and show that such Fe₃O₄ nanoparticles can be anchored on graphene sheets which attributed to multifunctional group effect of citrate. Electrochemical characterization of the Fe₃O₄/graphene nanocomposites exhibit large reversible capacity (~1347 mA h g⁻¹ at a current density of 0.2 C up to 100 cycles, and subsequent capacity of ~619 mA h g⁻¹ at a current density of 2 C up to 200 cycles), as well as high coulombic efficiency (~97%), excellent rate capability, and good cyclic stability. High resolution transmission electron microscopy confirms that Fe₃O₄ nanoparticles, with a size of ~4–16 nm are densely anchored on thin graphene sheets, resulting in large synergetic effects between Fe₃O₄ nanoparticles and graphene sheets with high electrochemical performance. - Graphical abstract: The reduction of Fe³⁺ to Fe²⁺ and the deposition of Fe₃O₄ on graphene sheets occur simultaneously using citrate function as reductant and anchor agent in this reaction process. Highlights: • Fe₃O₄/graphene composites are synthesized directly from graphene and C₆H₅FeO₇. • The citrate function as reductantmore » and anchor agent in this reaction process. • The resulting Fe₃O₄ particles (~4–16 nm) are densely anchored on graphene sheets. • The prepared Fe₃O₄/graphene composites exhibit excellent electrochemical performance.« less

Authors:
 [1];  [2]; ; ; ; ; ;  [1];  [1];  [2]
  1. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR (China)
  2. (COSDAF), City University of Hong Kong, Hong Kong SAR (China)
Publication Date:
OSTI Identifier:
22306304
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 201; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CITRATES; COMPOSITE MATERIALS; CURRENT DENSITY; DEPOSITION; EFFICIENCY; ELECTRIC BATTERIES; FERRITES; GRAPHENE; IRON IONS; IRON OXIDES; LITHIUM IONS; NANOPARTICLES; NANOSTRUCTURES; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats

Dong, Yu Cheng, Center of Super-Diamond and Advanced Films, Ma, Ru Guang, Jun Hu, Ming, Cheng, Hua, Tsang, Chun Kwan, Yang, Qing Dan, Yang Li, Yang, Zapien, Juan Antonio, E-mail: apjazs@cityu.edu.hk, and Center of Super-Diamond and Advanced Films. Scalable synthesis of Fe₃O₄ nanoparticles anchored on graphene as a high-performance anode for lithium ion batteries. United States: N. p., 2013. Web. doi:10.1016/J.JSSC.2012.12.021.
Dong, Yu Cheng, Center of Super-Diamond and Advanced Films, Ma, Ru Guang, Jun Hu, Ming, Cheng, Hua, Tsang, Chun Kwan, Yang, Qing Dan, Yang Li, Yang, Zapien, Juan Antonio, E-mail: apjazs@cityu.edu.hk, & Center of Super-Diamond and Advanced Films. Scalable synthesis of Fe₃O₄ nanoparticles anchored on graphene as a high-performance anode for lithium ion batteries. United States. doi:10.1016/J.JSSC.2012.12.021.
Dong, Yu Cheng, Center of Super-Diamond and Advanced Films, Ma, Ru Guang, Jun Hu, Ming, Cheng, Hua, Tsang, Chun Kwan, Yang, Qing Dan, Yang Li, Yang, Zapien, Juan Antonio, E-mail: apjazs@cityu.edu.hk, and Center of Super-Diamond and Advanced Films. 2013. "Scalable synthesis of Fe₃O₄ nanoparticles anchored on graphene as a high-performance anode for lithium ion batteries". United States. doi:10.1016/J.JSSC.2012.12.021.
@article{osti_22306304,
title = {Scalable synthesis of Fe₃O₄ nanoparticles anchored on graphene as a high-performance anode for lithium ion batteries},
author = {Dong, Yu Cheng and Center of Super-Diamond and Advanced Films and Ma, Ru Guang and Jun Hu, Ming and Cheng, Hua and Tsang, Chun Kwan and Yang, Qing Dan and Yang Li, Yang and Zapien, Juan Antonio, E-mail: apjazs@cityu.edu.hk and Center of Super-Diamond and Advanced Films},
abstractNote = {We report a scalable strategy to synthesize Fe₃O₄/graphene nanocomposites as a high-performance anode material for lithium ion batteries. In this study, ferric citrate is used as precursor to prepare Fe₃O₄ nanoparticles without introducing additional reducing agent; furthermore and show that such Fe₃O₄ nanoparticles can be anchored on graphene sheets which attributed to multifunctional group effect of citrate. Electrochemical characterization of the Fe₃O₄/graphene nanocomposites exhibit large reversible capacity (~1347 mA h g⁻¹ at a current density of 0.2 C up to 100 cycles, and subsequent capacity of ~619 mA h g⁻¹ at a current density of 2 C up to 200 cycles), as well as high coulombic efficiency (~97%), excellent rate capability, and good cyclic stability. High resolution transmission electron microscopy confirms that Fe₃O₄ nanoparticles, with a size of ~4–16 nm are densely anchored on thin graphene sheets, resulting in large synergetic effects between Fe₃O₄ nanoparticles and graphene sheets with high electrochemical performance. - Graphical abstract: The reduction of Fe³⁺ to Fe²⁺ and the deposition of Fe₃O₄ on graphene sheets occur simultaneously using citrate function as reductant and anchor agent in this reaction process. Highlights: • Fe₃O₄/graphene composites are synthesized directly from graphene and C₆H₅FeO₇. • The citrate function as reductant and anchor agent in this reaction process. • The resulting Fe₃O₄ particles (~4–16 nm) are densely anchored on graphene sheets. • The prepared Fe₃O₄/graphene composites exhibit excellent electrochemical performance.},
doi = {10.1016/J.JSSC.2012.12.021},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 201,
place = {United States},
year = 2013,
month = 5
}
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