Sunflower Stalk Based Activated Carbon for Supercapacitors

Alp YÜRÜM

doi:https://doi.org/10.15671/hjbc.509201

Article Details

Sunflower Stalk Based Activated Carbon for Supercapacitors

Authors:

Alp YÜRÜM

Publisher:

Hacettepe University

Main Topics:

Applied physics

Journal:

Hacettepe Journal of Biology and Chemistry 2019 Vol.47 Issue 3, pp.235-247

Document Type:

Article

Publication Date:

10/2019

Document Language:

English

Document ID (Org No.):

2000448361

Frequency:

Quarterly

eISSN:

2687-475X

pISSN:

2687-475X

DOI:

https://doi.org/10.15671/hjbc.509201

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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Article Details

Sunflower Stalk Based Activated Carbon for Supercapacitors

Authors: Alp YÜRÜM

Publisher: Hacettepe University

Main Topics: Applied physics

Journal: Hacettepe Journal of Biology and Chemistry 2019 Vol.47 Issue 3, pp.235-247

Document Type: Article

Publication Date: 10/2019

Document Language: English

Document ID (Org No.): 2000448361

Frequency: Quarterly

eISSN: 2687-475X

pISSN: 2687-475X

DOI: https://doi.org/10.15671/hjbc.509201

Issues

Authors:

Alp YÜRÜM

Publisher:

Hacettepe University

Main Topics:

Applied physics

Journal:

Hacettepe Journal of Biology and Chemistry 2019 Vol.47 Issue 3, pp.235-247

Document Type:

Article

Publication Date:

10/2019

Document Language:

English

Document ID (Org No.):

2000448361

Frequency:

Quarterly

eISSN:

2687-475X

pISSN:

2687-475X

DOI:

https://doi.org/10.15671/hjbc.509201