Presentation Type
Panel Discussion
Start Date
12-3-2022 1:00 PM
End Date
12-3-2022 2:30 PM
Abstract
Supercapacitors are one of today’s growing means of alternative energy. They are portable, produce much higher capacitance than traditional capacitors, and operate under lower voltages than that of batteries. Herein, we have synthesized a series of supercapacitor materials from sodium lignosulfonate, otherwise known as lignosol, which are co-doped with phosphorus and nitrogen. The materials are synthesized utilizing a green and time-efficient microwave irradiation process. Subsequently, these materials have been optimized by utilizing a novel process by which surface area and electrochemical properties is enhanced by freezing of their porous surface. Materials undergoing this method have shown significant increase in BET surface area, as well as up to 2-fold increase in specific capacitance. Further characterization is performed on materials to explore changes in topographical morphology and functionality between pre-freeze and post-freeze materials.
Keywords
iris denmark
Included in
Surface area enhancement of doped carbon materials via novel freeze-pore methodology
Supercapacitors are one of today’s growing means of alternative energy. They are portable, produce much higher capacitance than traditional capacitors, and operate under lower voltages than that of batteries. Herein, we have synthesized a series of supercapacitor materials from sodium lignosulfonate, otherwise known as lignosol, which are co-doped with phosphorus and nitrogen. The materials are synthesized utilizing a green and time-efficient microwave irradiation process. Subsequently, these materials have been optimized by utilizing a novel process by which surface area and electrochemical properties is enhanced by freezing of their porous surface. Materials undergoing this method have shown significant increase in BET surface area, as well as up to 2-fold increase in specific capacitance. Further characterization is performed on materials to explore changes in topographical morphology and functionality between pre-freeze and post-freeze materials.