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 | ||
dc.identifier.eissn | 1530-6992 | |
dc.identifier.uri | ||
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 | ||
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 |