Multifuncitonal porous carbon derived from areca nut for supercapacitor, CO2 capture and desalination

• Main Authors: Tzu-Min Chou, 周子民
• Other Authors: Jin-Long Hong
• Format: Others
• Language: en_US
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/rkghgj

碩士 === 國立中山大學 === 材料與光電科學學系研究所 === 107 === The preparation and application of biomass-derived carbons in supercapacitor and CO2 absorption have inspired increasing attention due to the ease of fabrication, cost-effectiveness, and sustainability of the meso/microporous carbon produced from various biological precursors. With this respect, areca nut (AN) was used to derive porous carbons, through carbonization, KOH-activation at various temperatures without or in the presence of N-doping agent of adenine. KOH-activation temperature and the N-doping agent are parameters influencing the surface area, porosity and the micro/mesoporous structure of the porous carbons. Appropriate adjustment of the preparation parameters resulted in porous carbons with extremely high Brunauer-Emmett-Teller surface area (SBET, up to 3723 m2/g), excellent CO2 absorption capacity (up to 4.8 mmol/g) at 25oC and outstanding capacitive performance with high specific capacitance (up to 419 F/g) and retention (> 91%) over 1000 cycles. Effect of preparation parameters on the micro/mesoporous structures and the resolved SBET values, CO2 absorption capacity and the capacitive performances of the porous carbons are the main focuses of this research.