Abstract
In this work, carbon-carbon nanocomposites as transparent electrodes were prepared by a chemical reduction of graphite oxide (GO) and multi-walled carbon nanotubes (MWNTs). The electric, optical, and electrochemical properties of graphene-MWNT nanocomposites (G-MCs) were investigated as a function of the MWNT content. It was found that chemically bonded G-MCs were successfully formed with a reduction of the functional groups of the GO and acid-treated MWNTs, resulting in the conjugation of 1D MWNTs onto a 2D graphene surface. The electrical conductivity of the graphene was significantly enhanced by introducing the MWNTs. In addition, the G-MCs showed improved current density and high efficiency compared with graphene alone. This indicated that the improved electrochemical performance of the G-MCs can be attributed to the increase in the activity and electrical conductivity enhanced by π-π interaction between graphene and MWNTs.
| Original language | English |
|---|---|
| Pages (from-to) | 1301-1306 |
| Number of pages | 6 |
| Journal | Materials Research Bulletin |
| Volume | 46 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2011 |
Bibliographical note
Funding Information:This work was supported by the Material Source Technology Development Business of the Ministry of Knowledge Economy, Korea .
Keywords
- A. Interfaces
- A. Nanostructures
- D. Electrical properties
- D. Electrochemical properties
- D. Optical properties