- Title
- Optimized electrolytic carbon and electrolyte systems for electrochemical capacitors
- Creator
- Hughes, Matthew A.; Allen, Jessica A.; Donne, Scott W.
- Relation
- ChemElectroChem Vol. 7, Issue 1, p. 266-282
- Publisher Link
- http://dx.doi.org/10.1002/celc.201901202
- Publisher
- Wiley-Blackwell Publishing
- Resource Type
- journal article
- Date
- 2020
- Description
- Electrochemical reduction of a molten Li2CO3-Na2CO3-K2CO3 eutectic is used to produce highly amorphous carbon with considerable oxygen functionalization in a process focusing on the conversion of CO2 to value-added carbon. Electrochemical characterization of materials using multiple techniques in different electrolytes allowed for the optimization of these materials as electrochemical capacitor electrodes. Variation in capacitive performance of the investigated materials has been provided based on their physical characteristics. The synthesized carbons are hybrid materials, showing both pseudocapacitive and electric double layer contributions to the total performance. Annealing under nitrogen at 800 °C is shown to widen pores in the carbon material, resulting in an increase in medium scan rate (5-10 mV.s-1) capacitance. A stable specific capacitance of 425 F.g-1 is obtained at 5 mV s-1 in 0.5 M Na2SO4 after 1000 cycles.
- Subject
- ternary alkali metal carbonate eutectic; molten salt electrolysis; electrodeposition; carbon; electrochemical capacitors
- Identifier
- http://hdl.handle.net/1959.13/1415031
- Identifier
- uon:36848
- Identifier
- ISSN:2196-0216
- Rights
- This is the peer reviewed version of the following article: Hughes, Matthew A.; Allen, Jessica A.; Donne, Scott W. “Optimized electrolytic carbon and electrolyte systems for electrochemical capacitors.” ChemElectroChem Vol. 7, Issue 1, p. 266-282, which has been published in final form at http://dx.doi.org/10.1002/celc.201901202. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
- Language
- eng
- Full Text
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