Synthesis and electrochemical capacitance of binderless nanocomposite electrodes formed by dispersion of carbon nanotubes and carbon aerogels
| Autor: | Mohamed Mohamedi, Lê H. Dao, Tarik Bordjiba |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Nanocomposite
Materials science Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology chemistry.chemical_element Aerogel Carbon nanotube Capacitance Dielectric spectroscopy law.invention Adsorption Chemical engineering chemistry law Electrode Electrical and Electronic Engineering Physical and Theoretical Chemistry Carbon |
| Zdroj: | Journal of Power Sources. 172:991-998 |
| ISSN: | 0378-7753 |
| Popis: | Novel nanocomposite carbon aerogel (CAG)-multi-walled carbon nanotubes (MWNT) materials have been synthesized and studied in 5 M KOH for electrochemical capacitor applications. The amount of MWNT in the nanocomposite was varied from 3 to 10 wt%. High specific surface areas ranging between 670 and 710 m 2 g −1 were obtained as measured by nitrogen gas adsorption method, whereas the average pore diameter ranged between 1 and 4 nm. Adding MWNT to the pristine CAG greatly improved the electrical conductivity as measured by electrochemical impedance spectroscopy. Finally, capacitance as high as 218 F g −1 was obtained with a composite containing 3 wt% of MWNTs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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