Post-synthetic functionalization of mesoporous carbon electrodes with copper oxide nanoparticles for supercapacitor application

K P S Prasad; D S Dhawale; S Joseph; C Anand; Mohammad A Wahab; A Mano; C I Sathish; V V Balasubramanian; T Sivakumar; A Vinu

doi:10.1016/j.micromeso.2013.01.023

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Post-synthetic functionalization of mesoporous carbon electrodes with copper oxide nanoparticles for supercapacitor application

Journal article

Peer reviewed

Post-synthetic functionalization of mesoporous carbon electrodes with copper oxide nanoparticles for supercapacitor application

K P S Prasad, D S Dhawale, S Joseph, C Anand, Mohammad A Wahab, A Mano, C I Sathish, V V Balasubramanian, T Sivakumar and A Vinu

Microporous and Mesoporous Materials, Vol.172, pp.77-86

2013

DOI: https://doi.org/10.1016/j.micromeso.2013.01.023

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Abstract

supercapacitor

mesoporous carbon

copper oxide

physico-chemical properties

Mesoporous carbon electrodes have been decorated with different contents of Cu/Cu2O nanoparticles via post-synthetic approach and successfully used for supercapacitor application. The N2 adsorption results reveal that all the functionalized materials exhibit a well-ordered mesoporous structure with excellent textural characteristics whereas the XRD results demonstrate that the structure of the mesoporous carbon support is retained even after the functionalization process. The HRSEM and HRTEM images display that the copper oxides are highly dispersed along the nanochannels of the mesoporous carbon support which are critical for the supercapacitor application. The electrochemical performance of Cu/Cu2O nanoparticles functionalized mesoporous carbon with tunable etc. pore structures is investigated by cyclic voltammetry, charge/discharge test and electrochemical impedance spectroscopy. Interestingly, as the pore diameter of the support increases, electrochemical performance is also increased and a maximum specific capacitance of 380 F g -1 at a current density of 1 mA cm-2 is achieved for CMK-3-150 loaded with 20 wt% of the Cu/Cu2O nanoparticles. The excellent electrochemical performance of the functionalized mesoporous carbon electrodes are attributed to the combined effect of electrical double layer and pseudo capacitance generated by the support with excellent textural parameters and the Cu/Cu2O nanoparticles, respectively. Crown Copyright © 2013 Published by Elsevier Inc. All rights reserved.

Details

Title: Post-synthetic functionalization of mesoporous carbon electrodes with copper oxide nanoparticles for supercapacitor application
Authors: K P S Prasad (Author) - University of Queensland
D S Dhawale (Author) - University of Queensland
S Joseph (Author) - University of Queensland
C Anand (Author) - University of Queensland
Mohammad A Wahab (Author) - University of Queensland
A Mano (Author) - International Center for Materials Nanoarchitectonics (MANA), Japan
C I Sathish (Author) - International Center for Materials Nanoarchitectonics (MANA), Japan
V V Balasubramanian (Author) - International Center for Materials Nanoarchitectonics (MANA), Japan
T Sivakumar (Author) - Anna University, India
A Vinu (Author) - University of Queensland
Publication details: Microporous and Mesoporous Materials, Vol.172, pp.77-86
Publisher: Elsevier BV
Date published: 2013
DOI: 10.1016/j.micromeso.2013.01.023
ISSN: 1387-1811
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99450590902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Applied; Chemistry, Physical; Materials Science, Multidisciplinary; Nanoscience & Nanotechnology