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Enabling high surface and space utilization of activated carbon for supercapacitors by homogeneous activation
- Source :
- Carbon. 182:559-563
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Improving both surface and space utilization of active carbon is crucial for compact supercapacitors. Herein, two activated carbons are prepared through homogeneous activation (HAC) and traditional outside-in activation (OIAC). Compared with OIAC with deep and branched porous structure, HAC shows an interconnected porous structure, leading to higher density, better gravimetric and volumetric capacitances, and improved rate performance. The results demonstrate that interconnected porous structure by homogeneous activation promotes high surface and space utilization as well as robust ion transport kinetics of activated carbon for capacitive energy storage.
- Subjects :
- Supercapacitor
Materials science
Kinetics
02 engineering and technology
General Chemistry
010402 general chemistry
021001 nanoscience & nanotechnology
Space (mathematics)
01 natural sciences
0104 chemical sciences
Chemical engineering
Homogeneous
medicine
Gravimetric analysis
General Materials Science
0210 nano-technology
Porosity
Ion transporter
Activated carbon
medicine.drug
Subjects
Details
- ISSN :
- 00086223
- Volume :
- 182
- Database :
- OpenAIRE
- Journal :
- Carbon
- Accession number :
- edsair.doi...........6e83f258108d4921899ff7ad7acab7d5