mirage

Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites

Show full item record

Title: Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites
Author: Yang, Huanping; Jiang, Jian; Zhou, Weiwei; Lai, Linfei; Xi, Lifei; Lam, Yeng Ming; Shen, Zexiang; Khezri, Bahareh; Yu, Ting
Copyright year: 2011
Abstract: MnO2 supported on graphene oxide (GO) made from different graphite materials has been synthesized and further investigated as electrode materials for supercapacitors. The structure and morphology of MnO2-GO nanocomposites are characterized by X-ray diffraction, X-ray photoemission spectroscopy, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and Nitrogen adsorption-desorption. As demonstrated, the GO fabricated from commercial expanded graphite (denoted as GO(1)) possesses more functional groups and larger interplane gap compared to the GO from commercial graphite powder (denoted as GO(2)). The surface area and functionalities of GO have significant effects on the morphology and electrochemical activity of MnO2, which lead to the fact that the loading amount of MnO2 on GO(1) is much higher than that on GO(2). Elemental analysis performed via inductively coupled plasma optical emission spectroscopy confirmed higher amounts of MnO2 loading on GO(1). As the electrode of supercapacitor, MnO2-GO(1) nanocomposites show larger capacitance (307.7 F g-1) and better electrochemical activity than MnO2-GO(2) possibly due to the high loading, good uniformity, and homogeneous distribution of MnO2 on GO(1) support.
Subject: DRNTU::Engineering::Materials::Nanostructured materials.
Type: Journal Article
Series/ Journal Title: Nanoscale research letters
School: School of Materials Science and Engineering
Rights: © 2011 Yang et al; licensee Springer.
Version: Published version

Files in this item

Files Size Format View
influence of gr ... ces of grapherne oxide.pdf 1.280Mb PDF View/Open
   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Influences of graphene oxide support on the electrochemical performances of graphene oxide-MnO2 nanocomposites 387

Total downloads

All Bitstreams Views
influence of graphene oxide support on the electrochemical performances of grapherne oxide.pdf 224
Influences of graphene oxide support on the electrochemical performances of grapheme oxid1.pdf 5

Top country downloads

Country Code Views
China 86
United States of America 55
Singapore 29
Taiwan 23
India 6

Top city downloads

city Views
Beijing 49
Mountain View 45
Singapore 29
Taipei 13
Tainan 5