Porous MnO2 for use in a high performance supercapacitor: replication of a 3D graphene network as a reactive template

Xiaoying Xie; Chen Zhang; Ming-Bo Wu; Ying Tao; Wei Lv; Quan-Hong Yang

doi:10.1039/C3CC46867D

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Porous MnO₂ for use in a high performance supercapacitor: replication of a 3D graphene network as a reactive template†

Xiaoying Xie,^a Chen Zhang,^a Ming-Bo Wu,^b Ying Tao,^a Wei Lv^ac and Quan-Hong Yang*^ac

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* Corresponding authors

^a Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
E-mail: qhyangcn@tju.edu.cn
Fax: +86-22-2740-1097
Tel: +86-22-2740-1097

^b State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao, China

^c Engineering Laboratory for Functionalized Carbon Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
E-mail: yang.quanhong@sz.tsinghua.edu.cn
Fax: +86-755-2603-6133
Tel: +86-755-2603-6133

Abstract

Graphene oxide hydrogel is used as a reactive template to prepare nanoporous materials with a 3D microstructure. The as-prepared porous MnO₂ shows a capacitance retention of ∼70.6% at a current density as high as 15 A g⁻¹, resulting from the 3D interconnected ion transport channel replicated from the graphene oxide hydrogel.

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Article information

DOI: https://doi.org/10.1039/C3CC46867D
Article type: Communication
Submitted: 08 Sep 2013
Accepted: 08 Oct 2013
First published: 08 Oct 2013

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Chem. Commun., 2013,49, 11092-11094

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Porous MnO₂ for use in a high performance supercapacitor: replication of a 3D graphene network as a reactive template

X. Xie, C. Zhang, M. Wu, Y. Tao, W. Lv and Q. Yang, Chem. Commun., 2013, 49, 11092 DOI: 10.1039/C3CC46867D

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Chemical Communications