Synthesis and electrochemical properties of tube-like nitrogen-doped graphene/manganese oxide composite for supercapacitors

Author

Chunnian Chen ; Ting Ma

Author_Institution

Anhui Key Lab. of Controllable Chem. Reaction & Mater. Chem. Eng., Hefei Univ. of Technol., Hefei, China

Volume

10

Issue

6

fYear

2015

fDate

6 2015

Firstpage

282

Lastpage

286

Abstract

A facile and simple method to prepare tube-like nitrogen-doped graphene (NG)/manganese oxide (Mn₃O₄) composite is introduced. The transmission electron microscopy patterns show that the Mn₃O₄ nanotubes were uniformly dispersed on the surface of the NGs. The composite was further investigated by Raman spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The electrochemical properties of NG/Mn₃O₄ composites were tested by cyclic voltammetry curves and galvanostatic charge-discharge curves. The results of the electrochemical measurement show the high capacitance and good long-term stability of NG/Mn₃O₄ composites.

Keywords

Raman spectra; X-ray diffraction; X-ray photoelectron spectra; electrochemistry; graphene; manganese compounds; nanocomposites; nanofabrication; nanotubes; nitrogen; supercapacitors; transmission electron microscopy; voltammetry (chemical analysis); C:N-Mn₃O₄; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; cyclic voltammetry curves; electrochemical measurement; electrochemical properties; galvanostatic charge-discharge curves; nanotubes; supercapacitors; transmission electron microscopy; tube-like nitrogen-doped graphene-manganese oxide composite;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2014.0676

Filename

7127159