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Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode

In this paper the synthesis of self-organized Titania nanotubes (TNTs) by a facile potentiostatic anodization in a glycerol-based electrolyte is reported. The optimized TNTs were subsequently reduced through a cathodic reduction process to enhance its capacitive performance. FESEM and XRD were used...

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Main Authors: Muhammad Muzakir, Muhammad, Zainal, Zulkarnain, Hong, Ngee Lim, Abdullah, Abdul Halim, Baharudin, Noor Nazihah, Sarif @ Mohd Ali, Mahanim
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute 2020
Online Access:http://psasir.upm.edu.my/id/eprint/88775/1/ABSTRACT.pdf
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spelling oai:psasir.upm.edu.my:88775 http://psasir.upm.edu.my/id/eprint/88775/ Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode Muhammad Muzakir, Muhammad Zainal, Zulkarnain Hong, Ngee Lim Abdullah, Abdul Halim Baharudin, Noor Nazihah Sarif @ Mohd Ali, Mahanim In this paper the synthesis of self-organized Titania nanotubes (TNTs) by a facile potentiostatic anodization in a glycerol-based electrolyte is reported. The optimized TNTs were subsequently reduced through a cathodic reduction process to enhance its capacitive performance. FESEM and XRD were used to characterize the morphology and crystal structure of the synthesized samples. XPS analysis confirmed the reduction of Ti4+ to Ti3+ ions in the reduced Titania nanotubes (R-TNTs). The tube diameter and separation between the tubes were greatly influenced by the applied voltage. TNTs synthesized at voltage of 30 V for 60 min exhibited 86 nm and 1.1 µm of tube diameter and length, respectively and showed high specific capacitance of 0.33 mF cm−2 at current density of 0.02 mA cm−2. After reduction at 5 V for 30 s, the specific capacitance increased by about seven times (2.28 mF cm−2) at 0.5 mA cm−2 and recorded about 86% capacitance retention after 1000 continuous cycling at 0.2 mA cm−2, as compared to TNTs, retained about 61% at 0.01 mA cm−2. The charge transfer resistance drastically reduced from 6.2 Ω for TNTs to 0.55 Ω for R-TNTs, indicating an improvement in the transfer of electrons and ions across the electrode–electrolyte interface. Multidisciplinary Digital Publishing Institute 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88775/1/ABSTRACT.pdf Muhammad Muzakir, Muhammad and Zainal, Zulkarnain and Hong, Ngee Lim and Abdullah, Abdul Halim and Baharudin, Noor Nazihah and Sarif @ Mohd Ali, Mahanim (2020) Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode. Energies, 13 (11). pp. 1-15. ISSN 1996-1073 https://www.mdpi.com/1996-1073/13/11/2767 10.3390/en13112767
institution UPM IR
collection UPM IR
language English
description In this paper the synthesis of self-organized Titania nanotubes (TNTs) by a facile potentiostatic anodization in a glycerol-based electrolyte is reported. The optimized TNTs were subsequently reduced through a cathodic reduction process to enhance its capacitive performance. FESEM and XRD were used to characterize the morphology and crystal structure of the synthesized samples. XPS analysis confirmed the reduction of Ti4+ to Ti3+ ions in the reduced Titania nanotubes (R-TNTs). The tube diameter and separation between the tubes were greatly influenced by the applied voltage. TNTs synthesized at voltage of 30 V for 60 min exhibited 86 nm and 1.1 µm of tube diameter and length, respectively and showed high specific capacitance of 0.33 mF cm−2 at current density of 0.02 mA cm−2. After reduction at 5 V for 30 s, the specific capacitance increased by about seven times (2.28 mF cm−2) at 0.5 mA cm−2 and recorded about 86% capacitance retention after 1000 continuous cycling at 0.2 mA cm−2, as compared to TNTs, retained about 61% at 0.01 mA cm−2. The charge transfer resistance drastically reduced from 6.2 Ω for TNTs to 0.55 Ω for R-TNTs, indicating an improvement in the transfer of electrons and ions across the electrode–electrolyte interface.
format Article
author Muhammad Muzakir, Muhammad
Zainal, Zulkarnain
Hong, Ngee Lim
Abdullah, Abdul Halim
Baharudin, Noor Nazihah
Sarif @ Mohd Ali, Mahanim
spellingShingle Muhammad Muzakir, Muhammad
Zainal, Zulkarnain
Hong, Ngee Lim
Abdullah, Abdul Halim
Baharudin, Noor Nazihah
Sarif @ Mohd Ali, Mahanim
Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
author_facet Muhammad Muzakir, Muhammad
Zainal, Zulkarnain
Hong, Ngee Lim
Abdullah, Abdul Halim
Baharudin, Noor Nazihah
Sarif @ Mohd Ali, Mahanim
author_sort Muhammad Muzakir, Muhammad
title Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
title_short Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
title_full Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
title_fullStr Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
title_full_unstemmed Electrochemically reduced Titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
title_sort electrochemically reduced titania nanotube synthesized from glycerol-based electrolyte as supercapacitor electrode
publisher Multidisciplinary Digital Publishing Institute
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/88775/1/ABSTRACT.pdf
_version_ 1819300281990512640
score 13.4562235

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