Electrochemical behavior of carbon aerogels derived from different precursors
- Lawrence Livermore National Lab., CA (United States). Chemistry and Materials Science Dept.
- Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Physics
The ability to tailor the structure and properties of porous carbons has led to their increased use as electrodes in energy storage devices. The research focuses on the synthesis and characterization of carbon aerogels for use in electrochemical double layer capacitors.Carbon aerogels are formed from the sol-gel polymerization of (1) resorcinol-formaldehyde or (2) phenolic-furfural, followed by supercritical drying from carbon dioxide, and subsequent pyrolysis in an inert atmosphere. These materials can be produced as monoliths, composites, thin films, powders, or microspheres. In all cases, the aerogels have an open-cell structure with an ultrafine pore size (< 100 nm), high surface area (400--1,100 m{sup 2}/g), and a solid matrix composed of interconnected particles, fibers, or platelets with characteristic dimensions of 10 nm. This paper examines the effects of the carbon precursor and processing conditions on electrochemical performance in aqueous and organic electrolytes.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 162942
- Report Number(s):
- CONF-950412-; ISBN 1-55899-296-0; TRN: IM9604%%46
- Resource Relation:
- Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 17-21 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Materials for electrochemical energy storage and conversion -- Batteries, capacitors and fuel cells; Doughty, D.H. [ed.] [Sandia National Labs., Albuquerque, NM (United States)]; Vyas, B. [ed.] [AT and T Bell Labs., Murray Hill, NJ (United States)]; Takamura, Tsutomu [ed.] [Rikkyo Univ., Tokyo (Japan)]; Huff, J.R. [ed.] [Ballard Power Corp., Albuquerque, NM (United States)]; PB: 463 p.; Materials Research Society symposium proceedings, Volume 393
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
40 CHEMISTRY
CARBON
SYNTHESIS
PORE STRUCTURE
ELECTROCHEMISTRY
POROUS MATERIALS
CAPACITORS
GELS
CARBONIZATION
PARTICLE SIZE
SURFACE AREA
TRANSMISSION ELECTRON MICROSCOPY
RAMAN SPECTROSCOPY
MAGNETIC SUSCEPTIBILITY
POTASSIUM HYDROXIDES
ORGANIC COMPOUNDS
AMMONIUM COMPOUNDS
FLUOROBORATES
CARBONIC ACID ESTERS
CAPACITANCE
BULK DENSITY
EXPERIMENTAL DATA