Hierarchical ultrathin rolled-up Co(OH)(CO3)0.5 films assembled on Ni0.25Co0.75Sx nanosheets for enhanced supercapacitive performance

Lu Bai; Fang Fang; Hongyu Sun; Xingxu Yan; Xiaoming Sun; Jun Luo; Jing Zhu

doi:10.1039/C4RA09248A

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Hierarchical ultrathin rolled-up Co(OH)(CO₃)_0.5 films assembled on Ni_0.25Co_0.75S_x nanosheets for enhanced supercapacitive performance†

Lu Bai,‡^a Fang Fang,‡^a Hongyu Sun,

^a Xingxu Yan,^a Xiaoming Sun,*^b Jun Luo*^a and Jing Zhu*^a

Author affiliations

* Corresponding authors

^a Beijing National Center for Electron Microscopy, School of Materials Science and Engineering, The State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, People's Republic of China
E-mail: jluo@mail.tsinghua.edu.cn, jzhu@mail.tsinghua.edu.cn

^b State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
E-mail: sunxm@mail.buct.edu.cn

Abstract

A hierarchical nano-array of ultrathin rolled-up Co(OH)(CO₃)_0.5 films assembled on Ni_0.25Co_0.75S_x nanosheet arrays has been prepared for the construction of a supercapacitive electrode. This hierarchical arrayed structure has a high specific capacitance of 1710 F g⁻¹ at 5 mA cm⁻² and good rate capability.

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Article information

DOI: https://doi.org/10.1039/C4RA09248A
Article type: Communication
Submitted: 25 Aug 2014
Accepted: 16 Oct 2014
First published: 16 Oct 2014

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RSC Adv., 2014,4, 57458-57462

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Hierarchical ultrathin rolled-up Co(OH)(CO₃)_0.5 films assembled on Ni_0.25Co_0.75S_x nanosheets for enhanced supercapacitive performance

L. Bai, F. Fang, H. Sun, X. Yan, X. Sun, J. Luo and J. Zhu, RSC Adv., 2014, 4, 57458 DOI: 10.1039/C4RA09248A

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