Fabrication of Co3O4-reduced graphene oxide scrolls for high-performance supercapacitor electrodes

Weiwei Zhou; Jinping Liu; Tao Chen; Kim Seng Tan; Xingtao Jia; Zhiqiang Luo; Chunxiao Cong; Huanping Yang; Chang Ming Li; Ting Yu

doi:10.1039/C1CP21917K

Fabrication of Co₃O₄-reduced graphene oxide scrolls for high-performance supercapacitor electrodes†

Weiwei Zhou,^a Jinping Liu,^ab Tao Chen,^c Kim Seng Tan,^a Xingtao Jia,^a Zhiqiang Luo,^a Chunxiao Cong,^a Huanping Yang,^a Chang Ming Li^c and Ting Yu*^ad

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* Corresponding authors

^a Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore
E-mail: yuting@ntu.edu.sg

^b Institute of Nanoscience and Nanotechnology, Department of Physics, Central China Normal University, Wuhan, P. R. China

^c School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore

^d Department of Physics, Faculty of Science, National University of Singapore, Singapore

Abstract

A new type of scrolled structure of Co₃O₄/reduced graphene oxide (r-GO) is facilely prepared through a two-step surfactant-assisted method. This assembly enables almost every single Co₃O₄ scroll to connect with the r-GO platelets, thus leading to remarkable electrochemical performances in terms of high specific capacitance and good rate capability.

Physical Chemistry Chemical Physics

Fabrication of Co₃O₄-reduced graphene oxide scrolls for high-performance supercapacitor electrodes†

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Physical Chemistry Chemical Physics