Binder-free Co3O4@NiCoAl-layered double hydroxide core-shell hybrid architectural nanowire arrays with enhanced electrochemical performance

Authors

Xuan Li, Tianjin University
Zhengchun Yang, Tianjin University of Technology
Wen Qi, China Iron And Steel Research Institute Group
Yutao Li, University of Texas at Austin
Ying Wu, Harbin Electric Machinery Company
Shaoxiong Zhou, China Iron And Steel Research Institute Group
Shengming Huang, Tianjin University of Technology
Jun Wei, Singapore Institute of Manufacturing Technology
Huijun Li, University of WollongongFollow
Pei Yao, Tianjin UniversityFollow

RIS ID

105591

Publication Details

Li, X., Yang, Z., Qi, W., Li, Y., Wu, Y., Zhou, S., Huang, S., Wei, J., Li, H. & Yao, P. (2016). Binder-free Co₃O₄@NiCoAl-layered double hydroxide core-shell hybrid architectural nanowire arrays with enhanced electrochemical performance. Applied Surface Science, 363 381-388.

Abstract

Herein, binder-free Co₃O₄@NiCoAl-layered double hydroxide (Co₃O₄@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 Co₃O₄ nanowires were successfully fabricated allowing for fast electron transport that enhances the electrochemical performance of LDH nanosheets. Co₃O₄@LDH nanowire arrays of 2 to 1.5 molar ratio (Co₃O₄:LDH) exhibit high specific capacitance (1104 Fg^-1 at 1 Ag^-1), adequate rate capability and cycling stability (87.3% after 5000 cycles), attributed to the synergistic effect between the robust Co₃O₄ nanowire arrays and LDH nanosheets.