Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials
The effects of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as electrochemical capacitors were evaluated. Four types of electrolytes were selected to assess their effects on the prepared composites, namely aqueous electrolytes of 1.0 M KCl, 1.0 M H...
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| Format: | Article |
| Language: | English |
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Springer
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72405/ http://psasir.upm.edu.my/id/eprint/72405/1/Effect%20of%20electrolytes%20on%20the%20electrochemical%20.pdf |
| _version_ | 1848857110245277696 |
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| author | Chua, Chi Wing Zainal, Zulkarnain Lim, Hong Ngee Chang, Sook Keng |
| author_facet | Chua, Chi Wing Zainal, Zulkarnain Lim, Hong Ngee Chang, Sook Keng |
| author_sort | Chua, Chi Wing |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effects of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as electrochemical capacitors were evaluated. Four types of electrolytes were selected to assess their effects on the prepared composites, namely aqueous electrolytes of 1.0 M KCl, 1.0 M HCl, 1.0 M KOH; and an organic electrolyte, 0.27 M tetra-n-butylammonium tetrafluoroborate (TBATFB) ionic liquid salt in acetonitrile. The composites performed better in 1.0 M HCl and 1.0 M KOH, than in 1.0 M KCl and 0.27 M TBATFB, which suggested that aqueous electrolytes with non-neutral pH would improve the specific areal capacitance values of the composites. Results have shown optimal performance in 1.0 KOH, which endowed the composite with excellent rate capability up to 200 mV s−1. Cyclic voltammogram of the composite analysed in 1.0 M KOH produced a leaf-shaped like profile, with higher current densities towards more positive potentials. Charge–discharge analyses in 1.0 M KOH has shown that the composite possessed specific areal capacitance of up to 214.76 µF cm−2 when it was evaluated at the current density of 350 µA cm−2. The composite also retained up to 97.79% of its specific areal capacitance when current density was increased to 400 µA cm−2. This material has demonstrated potential application for electrochemical capacitors through its facile fabrication technique. |
| first_indexed | 2025-11-15T11:52:20Z |
| format | Article |
| id | upm-72405 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:52:20Z |
| publishDate | 2018 |
| publisher | Springer |
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| spelling | upm-724052020-06-03T00:11:54Z http://psasir.upm.edu.my/id/eprint/72405/ Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials Chua, Chi Wing Zainal, Zulkarnain Lim, Hong Ngee Chang, Sook Keng The effects of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as electrochemical capacitors were evaluated. Four types of electrolytes were selected to assess their effects on the prepared composites, namely aqueous electrolytes of 1.0 M KCl, 1.0 M HCl, 1.0 M KOH; and an organic electrolyte, 0.27 M tetra-n-butylammonium tetrafluoroborate (TBATFB) ionic liquid salt in acetonitrile. The composites performed better in 1.0 M HCl and 1.0 M KOH, than in 1.0 M KCl and 0.27 M TBATFB, which suggested that aqueous electrolytes with non-neutral pH would improve the specific areal capacitance values of the composites. Results have shown optimal performance in 1.0 KOH, which endowed the composite with excellent rate capability up to 200 mV s−1. Cyclic voltammogram of the composite analysed in 1.0 M KOH produced a leaf-shaped like profile, with higher current densities towards more positive potentials. Charge–discharge analyses in 1.0 M KOH has shown that the composite possessed specific areal capacitance of up to 214.76 µF cm−2 when it was evaluated at the current density of 350 µA cm−2. The composite also retained up to 97.79% of its specific areal capacitance when current density was increased to 400 µA cm−2. This material has demonstrated potential application for electrochemical capacitors through its facile fabrication technique. Springer 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72405/1/Effect%20of%20electrolytes%20on%20the%20electrochemical%20.pdf Chua, Chi Wing and Zainal, Zulkarnain and Lim, Hong Ngee and Chang, Sook Keng (2018) Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials. Journal of Materials Science: Materials in Electronics, 29 (17). 14445 - 14454. ISSN 0957-4522; ESSN: 1573-482X https://link.springer.com/article/10.1007/s10854-018-9577-z 10.1007/s10854-018-9577-z |
| spellingShingle | Chua, Chi Wing Zainal, Zulkarnain Lim, Hong Ngee Chang, Sook Keng Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title | Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title_full | Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title_fullStr | Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title_full_unstemmed | Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title_short | Effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| title_sort | effect of electrolytes on the electrochemical performance of nickel cobaltite–titania nanotubes composites as supercapacitive materials |
| url | http://psasir.upm.edu.my/id/eprint/72405/ http://psasir.upm.edu.my/id/eprint/72405/ http://psasir.upm.edu.my/id/eprint/72405/ http://psasir.upm.edu.my/id/eprint/72405/1/Effect%20of%20electrolytes%20on%20the%20electrochemical%20.pdf |