Synthesis of a Very High Specific Surface Area Active Carbon and Its Electrical Double-Layer Capacitor Properties in Organic Electrolytes

ChemEngineering

BrajaK. Mandal¹  Zheng Yue¹  Hamza Dunya¹  Maziar Ashuri²  Bader Alabbad²  Stoichko Antonov²  CarloU. Segre³  Shankar Aryal³  Kamil Kucuk³ 

[1] Department of Chemistry, Illinois Institute of Technology, Chicago, IL 60616, USA;Department of Mechanical, Material and Aerospace Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA;Department of Physics & CSRRI, Illinois Institute of Technology, Chicago, IL 60616, USA;

关键词: electrical double-layer capacitor;    porous activated carbon;    specific surface area;    maximum operating voltage;    specific capacitance;    energy density;   

DOI  :  10.3390/chemengineering4030043

来源: DOAJ

【 摘 要 】

A new porous activated carbon (AC) material with very high specific surface area (3193 m² g⁻¹) was prepared by the carbonization of a colloidal silica-templated melamine–formaldehyde (MF) polymer composite followed by KOH-activation. Several electrical double-layer capacitor (EDLC) cells were fabricated using this AC as the electrode material. A number of organic solvent-based electrolyte formulations were examined to optimize the EDLC performance. Both high specific discharge capacitance of 130.5 F g⁻¹ and energy density 47.9 Wh kg⁻¹ were achieved for the initial cycling. The long-term cycling performance was also measured.

【 授权许可】

Unknown