Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions
Pulse ionized titania 3D-nanonetworks (T3DN) are emerging materials for fabricating binder-free and carbon-free electrodes for electrochemical energy storage devices. In this article, we investigate the effect of the one of the most important fabrication parameters, pulse frequency, for optimizing s...
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MDPI AG
2021-04-01
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Online Access: | https://www.mdpi.com/2079-4991/11/5/1062 |
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doaj-8e14b75aef6a4898a6fdc7fb04dd733f2021-04-21T23:02:09ZengMDPI AGNanomaterials2079-49912021-04-01111062106210.3390/nano11051062Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse RepetitionsAmirhossein Gholami0Chae-Ho Yim1Amirkianoosh Kiani2Silicon Hall, Micro/Nano Manufacturing Facility, Faculty of Engineering and Applied Science, Ontario Tech University, 2000 Simcoe St N, Oshawa, ON L1G 0C5, CanadaNational Research Council Canada, Energy, Mining, and Environment Research Centre, 1200 Montreal Road, Ottawa, ON K1V 0R6, CanadaSilicon Hall, Micro/Nano Manufacturing Facility, Faculty of Engineering and Applied Science, Ontario Tech University, 2000 Simcoe St N, Oshawa, ON L1G 0C5, CanadaPulse ionized titania 3D-nanonetworks (T3DN) are emerging materials for fabricating binder-free and carbon-free electrodes for electrochemical energy storage devices. In this article, we investigate the effect of the one of the most important fabrication parameters, pulse frequency, for optimizing supercapacitor efficiency. A series of coin cell batteries with laser-induced electrodes was fabricated; the effect of pulse frequency on oxidation levels and material properties was studied using both experimental and theoretical analysis. Also, detailed electrochemical tests including cyclic voltammetry (CV), charge/discharge, and electrochemical impedance spectroscopy (EIS) were conducted to better understand the effect of pulse frequency on the electrochemical performance of the fabricated devices. The results show that at a frequency of 600 kHz, more T3DN were observed due to the higher temperature and stabler formation of the plasma plume, which resulted in better performance of the fabricated supercapacitors; specific capacitances of samples fabricated at 600 kHz and 1200 kHz were calculated to be 59.85 and 54.39 mF/g at 500 mV/s, respectively.https://www.mdpi.com/2079-4991/11/5/1062nanomaterialselectrodestitania nanonetworkpulse ionizationelectrochemical |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Amirhossein Gholami Chae-Ho Yim Amirkianoosh Kiani |
spellingShingle |
Amirhossein Gholami Chae-Ho Yim Amirkianoosh Kiani Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions Nanomaterials nanomaterials electrodes titania nanonetwork pulse ionization electrochemical |
author_facet |
Amirhossein Gholami Chae-Ho Yim Amirkianoosh Kiani |
author_sort |
Amirhossein Gholami |
title |
Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions |
title_short |
Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions |
title_full |
Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions |
title_fullStr |
Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions |
title_full_unstemmed |
Electrochemical Performance of Titania 3D Nanonetwork Electrodes Induced by Pulse Ionization at Varied Pulse Repetitions |
title_sort |
electrochemical performance of titania 3d nanonetwork electrodes induced by pulse ionization at varied pulse repetitions |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2021-04-01 |
description |
Pulse ionized titania 3D-nanonetworks (T3DN) are emerging materials for fabricating binder-free and carbon-free electrodes for electrochemical energy storage devices. In this article, we investigate the effect of the one of the most important fabrication parameters, pulse frequency, for optimizing supercapacitor efficiency. A series of coin cell batteries with laser-induced electrodes was fabricated; the effect of pulse frequency on oxidation levels and material properties was studied using both experimental and theoretical analysis. Also, detailed electrochemical tests including cyclic voltammetry (CV), charge/discharge, and electrochemical impedance spectroscopy (EIS) were conducted to better understand the effect of pulse frequency on the electrochemical performance of the fabricated devices. The results show that at a frequency of 600 kHz, more T3DN were observed due to the higher temperature and stabler formation of the plasma plume, which resulted in better performance of the fabricated supercapacitors; specific capacitances of samples fabricated at 600 kHz and 1200 kHz were calculated to be 59.85 and 54.39 mF/g at 500 mV/s, respectively. |
topic |
nanomaterials electrodes titania nanonetwork pulse ionization electrochemical |
url |
https://www.mdpi.com/2079-4991/11/5/1062 |
work_keys_str_mv |
AT amirhosseingholami electrochemicalperformanceoftitania3dnanonetworkelectrodesinducedbypulseionizationatvariedpulserepetitions AT chaehoyim electrochemicalperformanceoftitania3dnanonetworkelectrodesinducedbypulseionizationatvariedpulserepetitions AT amirkianooshkiani electrochemicalperformanceoftitania3dnanonetworkelectrodesinducedbypulseionizationatvariedpulserepetitions |
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1721515451548172288 |