In situ prepared reduced graphene oxide/CoO nanowires mutually-supporting porous structure with enhanced lithium storage performance

被引：55

作者：

Leng, Xuning ^{[1
,2
]}

Ding, Xiangdong ^{[2
]}

Hu, Jiangjiang ^{[1
]}

Wei, Sufeng ^{[3
]}

Jiang, Zhonghao ^{[1
]}

Lian, Jianshe ^{[1
]}

Wang, Guoyong ^{[1
,2
]}

Jiang, Qing ^{[1
]}

Liu, Jiaan ^{[1
]}

机构：

[1] Jilin Univ, Dept Mat Sci & Engn, Key Lab Automobile Mat, 5988 Renmin St, Changchun 130025, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[3] Changchun Univ Technol, Key Lab Adv Struct Mat, Changchun 130012, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 190卷

关键词：

In situ; Graphene; CoO nanowires; Lithium ion batteries; ATOMIC LAYER DEPOSITION; ANODE MATERIALS; ION BATTERIES; ELECTRODE PERFORMANCE; NANOSHEET COMPOSITES; CO3O4; NANOPARTICLES; ASSISTED SYNTHESIS; BINDER-FREE; CAPACITY; COO;

D O I：

10.1016/j.electacta.2015.12.190

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An efficient method is demonstrated to synthesize reduced graphene oxide/Co nanowires (rGO/CoO) mutually-supporting porous structure, which is in situ prepared by annealing self-assembled graphene oxide (GO)/Co(CO3)(0.5)(OH).0.11H(2)O nanowires composite in N-2 atmosphere. The CoO nanowires are uniformly and tightly anchored on the rGO sheet surface, preventing the aggregation of the CoO nanowires and the restacking of rGO sheets. As an anode material for lithium ion batteries (LIBs), rGO/CoO electrode displays excellent electrochemical performance including a high reversible capacity of 994 mA h g (1) even after 100 cycles with 96.3% capacity retention of the initial discharge capacity, super rate capability (718, 577, 504, 388 and 262 mA hg (1) 0.8, 3.2, 5, 7 and 10C, respectively,1C = 1 A g (1)) and extremely excellent cycling performance at high rates (621 mA h g I at 1C after 620 cycles; 520 mA h g (1) at 3C even after 750 cycles). (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：276 / 284

页数：9

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