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Functionalized Graphene as Energy Storage Supercapacitor

Supercapacitor is an energy storage device that store energy via accumulation of electrical charges at the electrode double layer. It received much attention in scientific community due to its high power density (higher than battery and fuel cell) and high energy density (higher than conventional ca...

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Main Authors: Puteri Emme Marina, Mohamad, Ling, Tanling, K. F., Chong
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
Q Science (General)
Online Access:http://umpir.ump.edu.my/id/eprint/5783/1/SCI-012.pdf
http://umpir.ump.edu.my/id/eprint/5783/
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spelling my.ump.umpir.57832018-07-25T03:09:47Z http://umpir.ump.edu.my/id/eprint/5783/ Functionalized Graphene as Energy Storage Supercapacitor Puteri Emme Marina, Mohamad Ling, Tanling K. F., Chong Q Science (General) Supercapacitor is an energy storage device that store energy via accumulation of electrical charges at the electrode double layer. It received much attention in scientific community due to its high power density (higher than battery and fuel cell) and high energy density (higher than conventional capacitor). Commercial available supercapacitors mostly focus on activated carbon as the electrode material due to its cost efficient and large surface area with good conductivity. The booming of graphene in research community has drawn the attention of supercapacitor manufacturers to look into this Nobel Prize winning nanomaterials, as it possesses superb conductivity and enhanced surface area. Numerous works on the graphene as supercapacitor electrode had been published. However, graphene itself could not store much energy as it solely relies on double layer capacitance. The incorporation of pseudocapacitance material to make the hybrid supercapacitor is a solution to increase the charge storage ability. The synergetic effect of double layer capacitance and pseudocapacitance could provide the enhancement of capacitance whilst maintaining the long term cyclability. In this work, we report a simple co-precipitation method to produce graphene/Ni3(Fe(CN)6)2 composite as hydrid supercapacitor electrode. Ni3(Fe(CN) is a good candidate to replace costly ruthenium in enhancing pseudocapacitance. With sonication and coprecipitation,Ni3(Fe(CN)6) nanoparticles were intercalated between graphene interlayer sheets, as confirmed by microscopic and spectroscopic analysis. The electrode was tested electrochemically and results show that graphene extended the operating voltage of Ni23(Fe(CN)6) and the specific capacitance was enhanced by Ni3(Fe(CN)6)2. The energy density of graphene/Ni was found to be increased by at least 2 folds as compared to Ni3(Fe(CN)6)alone. The works suggest that the graphene/Ni 3(Fe(CN)6)22 is a good electrode material for high energy supercapacitor. 2013 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5783/1/SCI-012.pdf Puteri Emme Marina, Mohamad and Ling, Tanling and K. F., Chong (2013) Functionalized Graphene as Energy Storage Supercapacitor. In: Malaysian Technical Universities Conference on Engineering & Technology (MUCET 2013), 3-4 December 2013 , Kuantan, Pahang. p. 1..
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Puteri Emme Marina, Mohamad
Ling, Tanling
K. F., Chong
Functionalized Graphene as Energy Storage Supercapacitor
description Supercapacitor is an energy storage device that store energy via accumulation of electrical charges at the electrode double layer. It received much attention in scientific community due to its high power density (higher than battery and fuel cell) and high energy density (higher than conventional capacitor). Commercial available supercapacitors mostly focus on activated carbon as the electrode material due to its cost efficient and large surface area with good conductivity. The booming of graphene in research community has drawn the attention of supercapacitor manufacturers to look into this Nobel Prize winning nanomaterials, as it possesses superb conductivity and enhanced surface area. Numerous works on the graphene as supercapacitor electrode had been published. However, graphene itself could not store much energy as it solely relies on double layer capacitance. The incorporation of pseudocapacitance material to make the hybrid supercapacitor is a solution to increase the charge storage ability. The synergetic effect of double layer capacitance and pseudocapacitance could provide the enhancement of capacitance whilst maintaining the long term cyclability. In this work, we report a simple co-precipitation method to produce graphene/Ni3(Fe(CN)6)2 composite as hydrid supercapacitor electrode. Ni3(Fe(CN) is a good candidate to replace costly ruthenium in enhancing pseudocapacitance. With sonication and coprecipitation,Ni3(Fe(CN)6) nanoparticles were intercalated between graphene interlayer sheets, as confirmed by microscopic and spectroscopic analysis. The electrode was tested electrochemically and results show that graphene extended the operating voltage of Ni23(Fe(CN)6) and the specific capacitance was enhanced by Ni3(Fe(CN)6)2. The energy density of graphene/Ni was found to be increased by at least 2 folds as compared to Ni3(Fe(CN)6)alone. The works suggest that the graphene/Ni 3(Fe(CN)6)22 is a good electrode material for high energy supercapacitor.
format Conference or Workshop Item
author Puteri Emme Marina, Mohamad
Ling, Tanling
K. F., Chong
author_facet Puteri Emme Marina, Mohamad
Ling, Tanling
K. F., Chong
author_sort Puteri Emme Marina, Mohamad
title Functionalized Graphene as Energy Storage Supercapacitor
title_short Functionalized Graphene as Energy Storage Supercapacitor
title_full Functionalized Graphene as Energy Storage Supercapacitor
title_fullStr Functionalized Graphene as Energy Storage Supercapacitor
title_full_unstemmed Functionalized Graphene as Energy Storage Supercapacitor
title_sort functionalized graphene as energy storage supercapacitor
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/5783/1/SCI-012.pdf
http://umpir.ump.edu.my/id/eprint/5783/
_version_ 1643665247918096384
score 13.211869

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