Fabrication of porous carbon nanosheets via urea-promoted activation of potassium citrate for enhanced supercapacitor performance
Taiyuan University of Technology · Tsinghua University
Abstract
• This study presents a sustainable method for synthesizing sodium humate-based porous carbon materials. • Pyridine-N acts as a key pore promoter, enhancing surface area and nanosheet formation. • Varying potassium citrate and activation temperature modulates C=O and pyrrole-N concentrations. • NHPC-750-3 achieves a surface area of 1749.96 m 2 /g and a specific capacitance of 310.1 F/g. • The NHPC-750-3//NHPC-750-3 supercapacitor delivers an energy density of 12.91 Wh/kg at 150 W/kg. Porous carbon materials, characterized by a high specific surface area and adjustable pore structure, serve as excellent electrode materials for supercapacitors. However, conventional production processes typically rely on large…
Citation impact
- FWCI
- 14.62
- Percentile
- 100%
- References
- 90
Authors
6Topics & keywords
- Supercapacitor
- Fabrication
- Urea
- Potassium
- Porosity
- Chemical engineering
- Chemistry
- Materials science