A New Approach towards Improving the Specific Energy and Specific Power of a Carbon-Based Supercapacitor using Platinum-Nanoparticles on Etched Stainless Steel Current Collector

Rakhmawati FARMA; Mohamad DERAMAN; Sepideh SOLTANINEJAD; AWITDRUS; Erman TAER; Maria Muhammad ISHAK; Najah Syahirah Mohd. NOR; Nur Hamizah BASRI; Besek Nurdiana Mohd. DOLAH; Norinsan Kamil OTHMAN; Mohd. Amir Radhi OTHMAN; Rusli DAIK; Mohd SULEMAN; Gurumurthy HEGDE

doi:10.5796/electrochemistry.83.1053

Articles

A New Approach towards Improving the Specific Energy and Specific Power of a Carbon-Based Supercapacitor using Platinum-Nanoparticles on Etched Stainless Steel Current Collector

Rakhmawati FARMA, Mohamad DERAMAN, Sepideh SOLTANINEJAD, AWITDRUS, Erman TAER, Maria Muhammad ISHAK, Najah Syahirah Mohd. NOR, Nur Hamizah BASRI, Besek Nurdiana Mohd. DOLAH, Norinsan Kamil OTHMAN, Mohd. Amir Radhi OTHMAN, Rusli DAIK, Mohd SULEMAN, Gurumurthy HEGDE

Author information

Rakhmawati FARMA
Department of Physics, University of Riau
Mohamad DERAMAN
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Sepideh SOLTANINEJAD
School of Chemical Science and Food Technology, Faculty of Science and Technology, University Kebangsaan Malaysia
AWITDRUS
Department of Physics, University of Riau
Erman TAER
Department of Physics, University of Riau
Maria Muhammad ISHAK
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Najah Syahirah Mohd. NOR
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Nur Hamizah BASRI
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Besek Nurdiana Mohd. DOLAH
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Norinsan Kamil OTHMAN
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Mohd. Amir Radhi OTHMAN
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Rusli DAIK
School of Chemical Science and Food Technology, Faculty of Science and Technology, University Kebangsaan Malaysia
Mohd SULEMAN
School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia
Gurumurthy HEGDE
BMS R and D Centre, BMS College of Engineering, Basavanagudi

Keywords: Supercapacitor Performance, Platinum Nanoparticles, Activated Carbon Electrodes, Current Collector

JOURNAL FREE ACCESS

2015 Volume 83 Issue 12 Pages 1053-1060

DOI https://doi.org/10.5796/electrochemistry.83.1053

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Abstract

We report an improved performance of a carbon-based supercapacitor using etched stainless steel (SS) current collector deposited with platinum nanoparticles (PtNs) over bare SS current collector/un-etched SS current collector deposited with PtNs. The PtNs grown on the etched surface of the current collectors provides a better contact with the surface of activated carbon monoliths electrode prepared from pre-carbonized fibres of oil palm empty fruit bunches. X-ray diffraction, field-emission scanning electron microscopy, the energy dispersive X-ray analysis, and X-ray photoelectron spectroscopy were employed to investigate the different properties of bare SS current collector and the modified current collector. Electrochemical impedance spectroscopy, cyclic voltammetry and galvanostatic charge–discharge results consistently suggest that the deposition of PtNs on the etched surface of the current collector causes an increase in specific capacitance of 10% (from 105 to 115 F g⁻¹), 4% (from 141 to 146 F g⁻¹) and 6% (from 142 to 150 F g⁻¹) respectively. Correspondingly, the specific energy increases from 4.12 to 4.51 Wh kg⁻¹ and specific power from 173 to 196 W kg⁻¹. Also EIS and GCD results respectively show a decrease of 47% (from 1.332 to 0.710 Ω) and 44% (from 1.75 to 0.974 Ω) in equivalent series resistance.

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