Binder-free Co 3 O 4 @NiCoAl-layered double hydroxide core-shell hybrid architectural nanowire arrays with enhanced electrochemical performance

被引：59

作者：

Li X. ^{[1
]}

Yang Z. ^{[2
]}

Qi W. ^{[3
]}

Li Y. ^{[4
]}

Wu Y. ^{[3
]}

Zhou S. ^{[3
]}

Huang S. ^{[5
]}

Wei J. ^{[6
]}

Li H. ^{[7
]}

Yao P. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Center for Analysis and Tests, Tianjin University, Tianjin

[2] Tianjin Key Laboratory of Film Electronic and Communication Devices, Advanced Materials and Printed Electronics Center, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin

[3] Beijing Key Laboratory of Energy Nanomaterials, Advance Technology and Materials Co., Ltd, China Iron and Steel Research Institute Group, Beijing

[4] Texas Materials Institute, University of Texas at Austin, Austin, 78712, TX

[5] Tianjin Key Laboratory of Film Electronic and Communication Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin

[6] Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research (A-STAR), 71 Nanyang Drive, Singapore

[7] Faculty of Engineering, University of Wollongong, Northfields Avenue, Wollongong, 2522, NSW

来源：

Applied Surface Science | 2016年 / 363卷

关键词：

Binder free; Co [!sub]3[!/sub] O [!sub]4[!/sub; Hybrid architectural; Layered double hydroxide; Supercapacitors;

D O I：

10.1016/j.apsusc.2015.12.039

中图分类号：

学科分类号：

摘要：

Herein, binder-free Co 3 O 4 @NiCoAl-layered double hydroxide (Co 3 O 4 @LDH) core-shell hybrid architectural nanowire arrays were prepared via a two-step hydrothermal synthesis route. LDH nanosheets possessing a large electroactive surface area uniformly dispersed on the surface of Co 3 O 4 nanowires were successfully fabricated allowing for fast electron transport that enhances the electrochemical performance of LDH nanosheets. Co 3 O 4 @LDH nanowire arrays of 2 to 1.5 molar ratio (Co 3 O 4 :LDH) exhibit high specific capacitance (1104 F g -1 at 1 A g -1 ), adequate rate capability and cycling stability (87.3% after 5000 cycles), attributed to the synergistic effect between the robust Co 3 O 4 nanowire arrays and LDH nanosheets. © 2015 Elsevier B.V. All rights reserved.

引用

页码：381 / 388

页数：7

共 40 条

[1]

Simon P., Gogotsi Y., Materials for electrochemical capacitors, Nat. Mater., 7, pp. 845-854, (2008)

[2]

Liu C., Li F., Ma L.P., Cheng H.M., Advanced materials for energy storage, Adv. Mater., 22, pp. E28-E62, (2010)

[3]

Wang G., Zhang L., Zhang J., A review of electrode materials for electrochemical supercapacitors, Chem. Soc. Rev., 41, pp. 797-828, (2012)

[4]

Yang Q., Lu Z.Y., Sun X.M., Liu J.F., Ultrathin Co 3 O 4 nanosheet arrays with high supercapacitive performance , Sci. Rep., 3, (2013)

[5]

Shim H.W., Lim A.H., Kim J.C., Jang E., Seo S.D., Lee G.H., Kim T.D., Kim D.W., Scalable one-pot bacteria-templating synthesis route toward hierarchical, porous-Co 3 O 4 superstructures for supercapacitor electrodes , Sci. Rep., 3, (2013)

[6]

Yuan C.Z., Zhang X.G., Su L.H., Gao B., Shen L.F., Facile synthesis and self-assembly of hierarchical porous NiO nano/micro spherical superstructures for high performance supercapacitors, J. Mater. Chem., 19, pp. 5772-5777, (2009)

[7]

Ryu K.S., Kim K.M., Park N.G., Park Y.J., Chang S.H., Symmetric redox supercapacitor with conducting polyaniline electrodes, J. Power Sources, 103, pp. 305-309, (2002)

[8]

Xu J.J., Wang K., Zu S.Z., Han B.H., Wei Z.X., Hierarchical nanocomposites of polyaniline nanowire arrays on graphene oxide sheets with synergistic effect for energy storage, ACS Nano, 4, pp. 5019-5026, (2010)

[9]

Wu Q., Xu Y.X., Yao Z.Y., Liu A.R., Shi G.Q., Supercapacitors based on flexible graphene/polyaniline nanofiber composite films, ACS Nano, 4, pp. 1963-1970, (2010)

[10]

Ul Haq A., Lim J., Yun J.M., Lee W.J., Han T.H., Kim S.O., Direct growth of polyaniline chains from N-doped sites of carbon nanotubes, Small, 9, pp. 3829-3833, (2013)

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