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Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors
Published on: November 30, 2021
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High-performance supercapacitors based on hierarchically porous carbons with a three-dimensional conductive network
Jizhao Zou1, Wenxuan Tu, Shao-Zhong Zeng
1Shenzhen Key Laboratory of Special Functional Materials & Shenzhen Engineering Laboratory for Advance Technology of Ceramics, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, P. R. China. zengxier@szu.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|March 30, 2019
Summary
Novel carbon nanobelts (CsCNBs) were synthesized from polymer nanobelts for advanced energy storage. These CsCNBs exhibit high surface area and a unique 3D conductive network, enhancing supercapacitor performance.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Polymer nanobelts (CsPNBs) offer cost-effective and scalable precursors.
- Developing advanced carbon materials is crucial for high-performance energy storage devices.
Purpose of the Study:
- To synthesize novel clews of carbon nanobelts (CsCNBs) from CsPNBs.
- To investigate the structural properties and electrochemical performance of CsCNBs for supercapacitors.
Main Methods:
- Carbonization of CsPNBs followed by KOH activation.
- Characterization of specific surface area, pore volume, and structural features.
- Electrochemical testing in a three-electrode system and supercapacitor device.
Main Results:
- Optimized CsCNBs*4 achieved a surface area of 2291 m2 g-1 and pore volume of 1.29 cm3 g-1.
- CsCNBs demonstrated a 3D conductive network, hierarchical porosity, and hydrophilicity.
- High specific capacitance (327.5 F g-1 at 0.5 A g-1), rate capability (72.2% retention at 500 mV s-1), and cycling stability (95% after 15,000 cycles).
Conclusions:
- The synthesized CsCNBs possess excellent properties for supercapacitor applications.
- The 3D conductive network and porous structure facilitate efficient ion diffusion and adsorption.
- CsCNBs show significant potential as advanced electrode materials for high-performance energy storage.
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