Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode

In this work, we report on the structural and electrochemical properties of aminopyrene functionalized reduced graphene oxide (Ap-rGO) for its suitability as a supercapacitor electrode. The Ap-rGO is prepared by sonicating a suspension of rGO with aminopyrene and the filtered sediment is subjected t...

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Main Authors:	Ellie Yi, Lih Teo, Hong, Ngee Lim, Rajan, Jose, K. F., Chong
Format:	Article
Language:	English
Published:	Royal Society of Chemistry 2015
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/9091/ http://umpir.ump.edu.my/id/eprint/9091/ http://umpir.ump.edu.my/id/eprint/9091/1/fist-2015-rajan-Aminopyrene%20Functionalized.pdf

id	ump-9091
recordtype	eprints
spelling	ump-90912018-02-08T01:57:11Z http://umpir.ump.edu.my/id/eprint/9091/ Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode Ellie Yi, Lih Teo Hong, Ngee Lim Rajan, Jose K. F., Chong Q Science (General) In this work, we report on the structural and electrochemical properties of aminopyrene functionalized reduced graphene oxide (Ap-rGO) for its suitability as a supercapacitor electrode. The Ap-rGO is prepared by sonicating a suspension of rGO with aminopyrene and the filtered sediment is subjected to spectroscopy studies and electrochemical studies. Spectroscopy studies reveal the successful functionalization of aminopyrene onto Ap-rGO through π–π interactions. Electrochemical analyses of Ap-rGO show a substantial increase in the specific capacitance for Ap-rGO (160 F g−1 at 5 mV s−1) compared to the non-functionalized rGO (118 F g−1 at 5 mV s−1). The enhancement is shown to be the pseudocapacitance arising from the electron donating effect of the amine group and the electron accepting effect of rGO, which enable facile electron transfer between the surface-bound amine group and rGO. The Ap-rGO has desirable charge storage properties such as low series resistance (0.4 Ω) and superior cycling stability (85% after 5000 cycles). Furthermore, the Ap-rGO has 1.5 fold higher energy density than the non-functionalized rGO electrode, thereby making it suitable as a deployable supercapacitor electrode. Royal Society of Chemistry 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9091/1/fist-2015-rajan-Aminopyrene%20Functionalized.pdf Ellie Yi, Lih Teo and Hong, Ngee Lim and Rajan, Jose and K. F., Chong (2015) Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode. RSC Advances, 5 (48). pp. 38111-38116. ISSN 2046-2069 http://dx.doi.org/10.1039/C5RA02578H
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Ellie Yi, Lih Teo Hong, Ngee Lim Rajan, Jose K. F., Chong Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
description	In this work, we report on the structural and electrochemical properties of aminopyrene functionalized reduced graphene oxide (Ap-rGO) for its suitability as a supercapacitor electrode. The Ap-rGO is prepared by sonicating a suspension of rGO with aminopyrene and the filtered sediment is subjected to spectroscopy studies and electrochemical studies. Spectroscopy studies reveal the successful functionalization of aminopyrene onto Ap-rGO through π–π interactions. Electrochemical analyses of Ap-rGO show a substantial increase in the specific capacitance for Ap-rGO (160 F g−1 at 5 mV s−1) compared to the non-functionalized rGO (118 F g−1 at 5 mV s−1). The enhancement is shown to be the pseudocapacitance arising from the electron donating effect of the amine group and the electron accepting effect of rGO, which enable facile electron transfer between the surface-bound amine group and rGO. The Ap-rGO has desirable charge storage properties such as low series resistance (0.4 Ω) and superior cycling stability (85% after 5000 cycles). Furthermore, the Ap-rGO has 1.5 fold higher energy density than the non-functionalized rGO electrode, thereby making it suitable as a deployable supercapacitor electrode.
format	Article
author	Ellie Yi, Lih Teo Hong, Ngee Lim Rajan, Jose K. F., Chong
author_facet	Ellie Yi, Lih Teo Hong, Ngee Lim Rajan, Jose K. F., Chong
author_sort	Ellie Yi, Lih Teo
title	Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
title_short	Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
title_full	Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
title_fullStr	Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
title_full_unstemmed	Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode
title_sort	aminopyrene functionalized reduced graphene oxide as a supercapacitor electrode
publisher	Royal Society of Chemistry
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9091/ http://umpir.ump.edu.my/id/eprint/9091/ http://umpir.ump.edu.my/id/eprint/9091/1/fist-2015-rajan-Aminopyrene%20Functionalized.pdf
first_indexed	2023-09-18T22:07:17Z
last_indexed	2023-09-18T22:07:17Z
_version_	1777414792887140352

Aminopyrene Functionalized Reduced Graphene Oxide as a Supercapacitor Electrode

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