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Supercapacitor performance with activated carbon and graphene aerogel composite electrodes

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Main Authors: Nabilah, Ramli, Abdul Hakim, Ab. Rahim, Anis Nurashikin, Nordin, Mohd. Firdaus, Abd. Wahab
Other Authors: nabilah@iium.edu.my
Format: Article
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2022
Subjects:
Graphene aerogel
Activated carbon
Supercapacitor
Composite electrode
Self-discharge
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/76246
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spelling my.unimap-762462022-09-28T08:01:28Z Supercapacitor performance with activated carbon and graphene aerogel composite electrodes Nabilah, Ramli Abdul Hakim, Ab. Rahim Anis Nurashikin, Nordin Mohd. Firdaus, Abd. Wahab nabilah@iium.edu.my Department of Electrical and Computer Engineering, Kulliyyah of Engineering, International Islamic University Malaysia Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia Department of Biotechnology Engineering, Kulliyyah of Engineering, International Islamic University Malaysia Graphene aerogel Activated carbon Supercapacitor Composite electrode Self-discharge Link to publisher's homepage at http://ijneam.unimap.edu.my Thus far, activated carbon (AC) has been the material of choice as practical supercapacitor electrode material. However, graphene can be a better alternative material. This work presents a comprehensive ratio study of AC and Graphene Aerogel (GA) as the sole and composite electrodes. The material and facile-fabricated electrodes were characterized, and the electrochemical performances of the prototypes were correlated and discussed in terms of specific capacitance, internal resistances, cyclic performance, and self-discharge. It was found that 20% GA addition on the AC electrode (GA20 specimen) recorded the highest charge-discharge specific capacitance at 78.9 F/g, which was 4% higher than AC at 75.8 F/g, even though the estimated surface area for the electrode was 20% lower than the pure AC electrode. Further addition of GA wt% decreased the capacitance due to the lack of electrode surface area. The equivalent series resistance (ESR) increased with an increase in GA wt% due to the higher electronic resistance of GA material. AC electrode had the lowest self-discharge among all specimens, which was caused by the deeper ion storage inside the electrode’s pores. 2022-09-28T08:01:28Z 2022-09-28T08:01:28Z 2022-04 Article International Journal of Nanoelectronics and Materials, vol.15(2), 2022, pages 139-154 1985-5761 (Printed) 2232-1535 (online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/76246 http://ijneam.unimap.edu.my en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Graphene aerogel
Activated carbon
Supercapacitor
Composite electrode
Self-discharge
spellingShingle Graphene aerogel
Activated carbon
Supercapacitor
Composite electrode
Self-discharge
Nabilah, Ramli
Abdul Hakim, Ab. Rahim
Anis Nurashikin, Nordin
Mohd. Firdaus, Abd. Wahab
Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
description Link to publisher's homepage at http://ijneam.unimap.edu.my
author2 nabilah@iium.edu.my
author_facet nabilah@iium.edu.my
Nabilah, Ramli
Abdul Hakim, Ab. Rahim
Anis Nurashikin, Nordin
Mohd. Firdaus, Abd. Wahab
format Article
author Nabilah, Ramli
Abdul Hakim, Ab. Rahim
Anis Nurashikin, Nordin
Mohd. Firdaus, Abd. Wahab
author_sort Nabilah, Ramli
title Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
title_short Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
title_full Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
title_fullStr Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
title_full_unstemmed Supercapacitor performance with activated carbon and graphene aerogel composite electrodes
title_sort supercapacitor performance with activated carbon and graphene aerogel composite electrodes
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/76246
_version_ 1751537910550626304
score 13.222552

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