Fabrication of 3-D Nanodimensioned Electric Double Layer Capacitor Structures Using Block Copolymer Templates
| Autor: | Dipu Borah, Michael A. Morris, Justin D. Holmes, Colm C. Faulkner, Sozaraj Rasappa, Ramsankar Senthamaraikannan |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Supercapacitor
Materials science Fabrication Capacitive sensing Biomedical Engineering Bioengineering Nanotechnology 02 engineering and technology General Chemistry Electric double-layer capacitor 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 7. Clean energy Capacitance 010309 optics Template Surface-area-to-volume ratio 0103 physical sciences General Materials Science 0210 nano-technology Current density |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 14:5221-5227 |
| ISSN: | 1533-4899 1533-4880 |
| DOI: | 10.1166/jnn.2014.8668 |
| Popis: | The need for materials for high energy storage has led to very significant research in supercapacitor systems. These can exhibit electrical double layer phenomena and capacitances up to hundreds of F/g. Here, we demonstrate a new supercapacitor fabrication methodology based around the microphase separation of PS-b-PMMA which has been used to prepare copper nanoelectrodes of dimension -13 nm. These structures provide excellent capacitive performance with a maximum specific capacitance of -836 F/g for a current density of 8.06 A/g at a discharge current as high as 75 mA. The excellent performance is due to a high surface area: volume ratio. We suggest that this highly novel, easily fabricated structure might have a number of important applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|