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Tailoring capacitance of 3D-printed graphene electrodes by carbonisation temperature
Edurne Redondo1, Siowwoon Ng1, Jose Muñoz1
1Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkynova 123, Brno 61200, Brno CZ-616 00, Czech Republic. pumera.group@gmail.com.
Nanoscale
|September 23, 2020
Summary
Researchers explored thermal activation to enhance 3D-printed carbon electrodes for electrochemical capacitors. Carbonization temperature significantly improved conductivity and capacitive performance by removing insulating polymers.
Area of Science:
- Materials Science
- Electrochemistry
- Additive Manufacturing
Background:
- 3D-printing enables rapid prototyping and decentralized production of complex structures.
- Carbon-based 3D-printed electrodes show potential for electrochemical capacitors but often need post-treatment for electrical activity.
Purpose of the Study:
- To investigate the effect of carbonization temperature on the conductivity and capacitive performance of 3D-printed polylactic acid/nanocarbon electrodes.
- To optimize thermal treatment for improved electrical activity in 3D-printed carbon electrodes.
Main Methods:
- Fabrication of nanocomposite electrodes using a polylactic acid/nanocarbon filament via 3D-printing.
- Characterization of electrodes subjected to various carbonization temperatures.
- Evaluation of electrical conductivity and electrochemical capacitive behavior.
Main Results:
- Carbonization temperature was identified as a critical parameter influencing electrode conductivity.
- Optimized carbonization effectively removed the insulating polymer, significantly enhancing electrical conductivity.
- Tailored carbonization temperatures led to improved capacitive performance of the electrodes.
Conclusions:
- Thermal activation, specifically carbonization temperature, is a key factor in developing high-performance 3D-printed carbon electrodes.
- This study provides a pathway for creating advanced, electrically active 3D-printed carbon-based materials for energy storage applications.
