|
Size: 1992
Comment:
|
Size: 2030
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 2: | Line 2: |
| *Co-PI [[https://www.physics.wisc.edu/garage/GarrettFrankson|Garrett Frankson]] and [[http://lmgtfy.com/?q=Austin+Jeffries|Austin Jeffries]] | Co-PI [[https://www.physics.wisc.edu/garage/GarrettFrankson|Garrett Frankson]] and [[http://lmgtfy.com/?q=Austin+Jeffries|Austin Jeffries]] Current Status: Building Project Page |
Graphene Micro-Supercapacitors
Co-PI Garrett Frankson and Austin Jeffries Current Status: Building Project Page
Project Overview
Relevant Publications
Maher F. El-Kady & Richard B. Kaner
El-Kady and Kaner demonstrate a scalable fabrication of graphene micro-supercapacitors over large areas by direct laser writing on graphite oxide films. More than 100 micro-supercapacitors can be produced on a single disc in 30 min or less. The devices are built on flexible substrates for flexible electronics and on-chip uses. Remarkably, miniaturizing the devices to the microscale results in enhanced charge-storage capacity and rate capability. These microsupercapacitors demonstrate a power density of ~200 W cm-3, which is among the highest values achieved for any supercapacitor.
Preparation of Graphitic Oxide
William S. Hummers & Richard E. Offema
- The conventional method for the preparation of graphitic oxide is time consuming and hazardous. Hummers and Offema have developed a rapid, relatively safe method for preparing graphitic oxide from graphite in what is essentially an anhydrous mixture of sulfuric acid, sodium nitrate and potassium permanganate.
- Nina I. Kovtyukhova et al.
- For the synthesis of graphitic oxide, El-Kady and Kaner used a modified Hummers' method developed by Nina I. Kovtyukhova et al.