Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes

The effects of electrolyte on the electrochemical performance of nickel cobaltite – titania nanotubes composite electrochemical capacitors were evaluated. Four types of electrolyte were selected, namely aqueous electrolytes, 1.0 M KCl, 1.0 M HCl, 1.0 M KOH; and organic 0.27 M tetra-n-butylammonium t...

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Main Authors: Chua, Chi Wing, Zainal, Zulkarnain, Lim, Hong Ngee
Format: Conference or Workshop Item
Language:English
Published: 2017
Online Access:http://psasir.upm.edu.my/id/eprint/64409/1/MST%20oral%20111117%2018.pdf
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author Chua, Chi Wing
Zainal, Zulkarnain
Lim, Hong Ngee
author_facet Chua, Chi Wing
Zainal, Zulkarnain
Lim, Hong Ngee
author_sort Chua, Chi Wing
collection UPM
description The effects of electrolyte on the electrochemical performance of nickel cobaltite – titania nanotubes composite electrochemical capacitors were evaluated. Four types of electrolyte were selected, namely aqueous electrolytes, 1.0 M KCl, 1.0 M HCl, 1.0 M KOH; and organic 0.27 M tetra-n-butylammonium tetrafluoroborate (TBATFB) in acetonitrile. Results have shown optimal performance in 1.0 M KOH, which endowed the composite with excellent rate capability up to 200 mV s-1. Charge – discharge analyses has shown that the composite possessed specific areal capacitance of up to 214 μF cm-2 when evaluated at a current density of 350 μA cm-2. The composite retained up to 97.79 % of its capacitance when current density was increased to 400 μA cm-2. The composite has demonstrated a promising application for electrochemical capacitors through its facile fabrication technique.
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spelling upm.eprints-644092018-07-05T09:29:32Z http://psasir.upm.edu.my/id/eprint/64409/ Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes Chua, Chi Wing Zainal, Zulkarnain Lim, Hong Ngee The effects of electrolyte on the electrochemical performance of nickel cobaltite – titania nanotubes composite electrochemical capacitors were evaluated. Four types of electrolyte were selected, namely aqueous electrolytes, 1.0 M KCl, 1.0 M HCl, 1.0 M KOH; and organic 0.27 M tetra-n-butylammonium tetrafluoroborate (TBATFB) in acetonitrile. Results have shown optimal performance in 1.0 M KOH, which endowed the composite with excellent rate capability up to 200 mV s-1. Charge – discharge analyses has shown that the composite possessed specific areal capacitance of up to 214 μF cm-2 when evaluated at a current density of 350 μA cm-2. The composite retained up to 97.79 % of its capacitance when current density was increased to 400 μA cm-2. The composite has demonstrated a promising application for electrochemical capacitors through its facile fabrication technique. 2017 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/64409/1/MST%20oral%20111117%2018.pdf Chua, Chi Wing and Zainal, Zulkarnain and Lim, Hong Ngee (2017) Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes. In: 5th International Symposium on Applied Engineering and Sciences (SAES2017), 14-15 Nov. 2017, Universiti Putra Malaysia. (p. 18).
spellingShingle Chua, Chi Wing
Zainal, Zulkarnain
Lim, Hong Ngee
Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title_full Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title_fullStr Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title_full_unstemmed Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title_short Performance of nickel cobaltite - anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
title_sort performance of nickel cobaltite anodised titania nanotubes composite electrochemical capacitor electrodes in different electrolytes
url http://psasir.upm.edu.my/id/eprint/64409/1/MST%20oral%20111117%2018.pdf
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AT limhongngee performanceofnickelcobaltiteanodisedtitaniananotubescompositeelectrochemicalcapacitorelectrodesindifferentelectrolytes