|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||2018 Symposium on Functional Nanomaterials: Discovery and Integration of Nanomaterials
||Soybean-derived Activated Carbon for Supercapacitors
||Wenxin Cao, Fuqian Yang
|On-Site Speaker (Planned)
Activated carbon is prepared from soybean residue via hydrothermal (HTC) processing and physical activation. The temperature for the hydrothermal carbonization is 200±2 șC, and the physical activation in nitrogen gas is performed at high temperature and a pressure of 1 atm. The pH effect on the morphology of the carbonized materials formed from the HTC processing is investigated. The optimal conditions of the physical activation are determined. Both the microstructure and adsorption behavior of the activated carbon are characterized as a function of pH. Electrodes for electrical double layer capacitors (EDLCs) with 6 M KOH aqueous electrolyte are prepared from the activated carbon. The electrochemical performance of the EDLCs is examined with the focus on the effect of porous structures on the specific gravimetric capacitance and electrical impedance. The effect of the charging and discharging rates on the electrochemical performance of the EDLCs is also studied.
||Planned: Supplemental Proceedings volume