Open AccessSynthesis and electrochemical properties of tube‐like nitrogen‐doped graphene/manganese oxide composite for supercapacitors
Author(s) -
Chen Chunnian,
Ma Ting
Publication year - 2015
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2014.0676
Subject(s) - graphene , materials science , supercapacitor , cyclic voltammetry , x ray photoelectron spectroscopy , raman spectroscopy , composite number , manganese , electrochemistry , oxide , transmission electron microscopy , scanning electron microscope , chemical engineering , composite material , nanotechnology , electrode , chemistry , metallurgy , physics , optics , engineering
A facile and simple method to prepare tube‐like nitrogen‐doped graphene (NG)/manganese oxide (Mn 3 O 4 ) composite is introduced. The transmission electron microscopy patterns show that the Mn 3 O 4 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/Mn 3 O 4 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/Mn 3 O 4 composites.