Design and synthesis of hierarchical MnO2 nanospheres/carbon nanotubes/conducting polymer ternary composite for high performance electrochemical electrodes.

dc.contributor.author

Hou, Ye

dc.contributor.author

Cheng, Yingwen

dc.contributor.author

Hobson, Tyler

dc.contributor.author

Liu, Jie

dc.coverage.spatial

United States

dc.date.accessioned

2011-06-21T17:27:00Z

dc.date.issued

2010-07-14

dc.description.abstract

For efficient use of metal oxides, such as MnO(2) and RuO(2), in pseudocapacitors and other electrochemical applications, the poor conductivity of the metal oxide is a major problem. To tackle the problem, we have designed a ternary nanocomposite film composed of metal oxide (MnO(2)), carbon nanotube (CNT), and conducting polymer (CP). Each component in the MnO(2)/CNT/CP film provides unique and critical function to achieve optimized electrochemical properties. The electrochemical performance of the film is evaluated by cyclic voltammetry, and constant-current charge/discharge cycling techniques. Specific capacitance (SC) of the ternary composite electrode can reach 427 F/g. Even at high mass loading and high concentration of MnO(2) (60%), the film still showed SC value as high as 200 F/g. The electrode also exhibited excellent charge/discharge rate and good cycling stability, retaining over 99% of its initial charge after 1000 cycles. The results demonstrated that MnO(2) is effectively utilized with assistance of other components (fFWNTs and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) in the electrode. Such ternary composite is very promising for the next generation high performance electrochemical supercapacitors.

dc.description.version

Version of Record

dc.identifier

http://www.ncbi.nlm.nih.gov/pubmed/20586479

dc.identifier.eissn

1530-6992

dc.identifier.uri

https://hdl.handle.net/10161/4093

dc.language

eng

dc.language.iso

en_US

dc.publisher

American Chemical Society (ACS)

dc.relation.ispartof

Nano Lett

dc.relation.isversionof

10.1021/nl101723g

dc.relation.journal

Nano Letters

dc.title

Design and synthesis of hierarchical MnO2 nanospheres/carbon nanotubes/conducting polymer ternary composite for high performance electrochemical electrodes.

dc.title.alternative
dc.type

Journal article

duke.contributor.orcid

Liu, Jie|0000-0003-0451-6111

duke.date.pubdate

2010-7-0

duke.description.issue

7

duke.description.volume

10

pubs.author-url

http://www.ncbi.nlm.nih.gov/pubmed/20586479

pubs.begin-page

2727

pubs.end-page

2733

pubs.issue

7

pubs.organisational-group

Chemistry

pubs.organisational-group

Duke

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.publication-status

Published

pubs.volume

10

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
280416200072.pdf
Size:
4.43 MB
Format:
Adobe Portable Document Format