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Journals / Hacettepe Journal of Biology and Chemistry / 2019 / Cilt: 47 - Sayı: 3

Sunflower Stalk Based Activated Carbon for Supercapacitors

Alp YÜRÜM
Pages
235–247
Publication Date
2019-10-23
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results show that the high surface area of sunflower activated carbon resulted in significantly high specific capacitance of 207 F/g at 0.05 A/g current density.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, a combination of physical and chemical activation was used to produce activated carbon from sunflower stalks.
📊
Key Findings & Data:The NaOH activated carbon possess a high specific surface area of 2658 m2/g.
💡
Conclusion & Impact:The results show that the high surface area of sunflower activated carbon resulted in significantly high specific capacitance of 207 F/g at 0.05 A/g current density.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:sunflower stalk · activated carbon · supercapacitor

Abstract

In this study, a combination of physical and chemical activation was used to produce activated carbon from sunflower stalks. The NaOH activated carbon possess a high specific surface area of 2658 m2/g. The micropore fraction and surface area obtained is much higher than a commercial activated carbon. The electrodes from the activated carbons were electrochemically analyzed in a two-electrode supercapacitor cell with 1 M H2SO4 electrolyte. The results show that the high surface area of sunflower activated carbon resulted in significantly high specific capacitance of 207 F/g at 0.05 A/g current density. Moreover, a high energy density of 18.4 Wh/kg was obtained at the power density of 80 W/kg. The results also showed the importance of pore structure on the supercapacitor performance.

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Cite This Article

YÜRÜM, A. (2019). Sunflower Stalk Based Activated Carbon for Supercapacitors. Hacettepe Journal of Biology and Chemistry, Cilt: 47 - Sayı: 3, 235–247. https://ajindex.com/articles/255817

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