Journal article
Anomalous Increase in Carbon Capacitance at Pore Sizes Less Than 1 Nanometer
Science Magazine, v 313(5794), pp 1760-1763
22 Sep 2006
PMID: 16917025
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Carbon supercapacitors, which are energy storage devices that use ion adsorption on the surface of highly porous materials to store charge, have numerous advantages over other power-source technologies, but could realize further gains if their electrodes were properly optimized. Studying
the effect of the pore size on capacitance could potentially improve performance by maximizing the
electrode surface area accessible to electrolyte ions, but until recently, no studies had addressed the lower size limit of accessible pores. Using carbide-derived carbon, we generated pores with average sizes from 0.6 to 2.25 nanometer and studied double-layer capacitance in an organic
electrolyte. The results challenge the long-held axiom that pores smaller than the size of solvated electrolyte ions are incapable of contributing to charge storage.
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Details
- Title
- Anomalous Increase in Carbon Capacitance at Pore Sizes Less Than 1 Nanometer
- Creators
- John ChmiolaG YushinYury GogotsiCristelle PortetPatrice SimonPierre-Louis Taberna
- Publication Details
- Science Magazine, v 313(5794), pp 1760-1763
- Publisher
- American Association for the Advancement of Science
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000240655700040
- Scopus ID
- 2-s2.0-33749007675
- Other Identifier
- 991014878256704721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Electrochemistry