title: Facile fabrication of Fe(3)O(4) octahedra/nanoporous copper network composite for high-performance anode in Li-Ion batteries.
abstract: Fe3O4octahedra embedded in conductive nanoporous copper (NPC) network are straightforwardly fabricated by means of alloy refining followed by facile electroless dealloying in mild condition. During selectively dissolving the Al from FeCuAl alloy, the residual Cu atoms assemble to form sponge-like nanostructure, meanwhile the Fe atoms undergo spontaneous oxidation and aggregation to grow into Fe3O4octahedra travelled through NPC network. Owing to the combination of conductive NPC network, Fe3O4octahedra exhibit dramatically enhanced lithium storage performances with excellent reversible capacity, enhanced rate performance, as well outstanding cyclability compared with pure Fe3O4octahedra. Especially, Fe3O4/Cu nanocomposite shows superior cycling stability with the excellent reversible capacity of 664.0 and 512.6mAhg-1retained over 500 cycles at the current densities of 300 and 1000mAg-1, respectively. Moreover, it shows good rate capability even when cycled at 1000mAg-1. With the advantages of exceptional performances and facile preparation, the as-made Fe3O4/Cu nanocomposite shows prospective application potential as an advanced anode material in lithium ion batteries.
authors.affiliation: Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Jiajia
authors.initials: J
authors.lastname: Ye
authors.affiliation: School of Basic Medical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Hao
authors.affiliation: Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
authors.forename: Binbin
authors.initials: B
authors.lastname: Liu
authors.affiliation: Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. Electronic address: chm_xucx@ujn.edu.cn.
authors.forename: Caixia
authors.initials: C
authors.lastname: Xu
keywords: Anode; Dealloying; Fe(3)O(4); Lithium ion batteries; Nanocomposite; Nanoporous