Facile Spray Drying Route for the Three-Dimensional Graphene-Encapsulated Fe2O3Nanoparticles for Lithium Ion Battery Anodes | Zendy

Guan-Wei Zhou | Zendy; Jiulin Wang | Zendy; Pengfei Gao | Zendy; Xiaowei Yang | Zendy; YuShi He | Zendy; XiaoZhen Liao | Zendy; Jun Yang | Zendy; ZiFeng Ma | Zendy

Open Access

Facile Spray Drying Route for the Three-Dimensional Graphene-Encapsulated Fe₂O₃Nanoparticles for Lithium Ion Battery Anodes

Author(s) -

Guan-Wei Zhou,

Jiulin Wang,

Pengfei Gao,

Xiaowei Yang,

YuShi He,

XiaoZhen Liao,

Jun Yang,

ZiFeng Ma

Publication year - 2012

Publication title -

industrial and engineering chemistry research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.878

H-Index - 221

eISSN - 1520-5045

pISSN - 0888-5885

DOI - 10.1021/ie302469b

Subject(s) - graphene , materials science , anode , nanoparticle , lithium (medication) , electrochemistry , chemical engineering , spray drying , battery (electricity) , lithium ion battery , electrical conductor , ion , composite material , nanotechnology , electrode , chemistry , medicine , power (physics) , physics , organic chemistry , quantum mechanics , endocrinology , engineering

Crumbled graphene sheet-wrapped nano-Fe2O3 (Fe2O3@GS) composites with a three-dimension (3D) hierarchical structure have been made by a facile and efficient spray drying route with a following mild heat reduction in air. In the as-obtained composites, the crumpled GS around Fe2O3 particles could not only provide a 3D conductive matrix but also buffer the volume change of Fe2O3. Fe2O3 particles which evenly distribute in the crumpled GS could also act as spacers to avoid the close restacking of GS. Compared to the bare Fe2O3, the Fe2O3@GS composites as Li ion battery anodes show dramatically improved electrochemical performance including cyclic stability and rate capability owing to the special encapsulated structure and the excellent synergistic effect between the two components.

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