Mesoporous Carbon Materials as Electrodes for Electrochemical Double-Layer Capacitor
- ORNL
Nanostructured carbon materials with a regular array and narrow size distribution of mesopores have been synthesized at Oak Ridge National Laboratory via the self-assembly of block copolymers as soft templates. One promising application for these materials is as electrodes for electrochemical double-layer capacitors. To evaluate the performance, electrodes were prepared by coating the precursor onto fibrous carbon paper, followed by curing and pyrolysis at 850 C. The resulting mesoporous carbon has a surface area of 310 m{sup 2}/g and an average pore size of 8.5 nm. Results from cyclic voltammetry and impedance spectroscopy experiments using a sulfuric acid electrolyte showed high specific capacitance values of up to 300 F/g. For comparison, a commercially available aerogel carbon coated paper was also examined.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 931099
- Resource Relation:
- Journal Volume: 973; Conference: 2006 MRS Fall Meeting, Boston, ME, USA, 20061127, 20061201
- Country of Publication:
- United States
- Language:
- English
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