Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes
Three morphologies of magnesium cobaltite (MgCo2O4), viz. cuboidal microcrystals, nanoflowers, and nanospheres, were synthesized using hydrothermal and molten salt methods and evaluated their electrochemical energy storage properties. Among them cuboidal microcrystal and nanoflowers were obtained by...
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Elsevier
2017
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| Online Access: | http://umpir.ump.edu.my/id/eprint/18398/ http://umpir.ump.edu.my/id/eprint/18398/1/Ceramic%20International.pdf |
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| author | Krishnan, Syam G. Harilal, Midhun Izan Izwan, Misnon Reddy, M. Venkatashamy Adams, Stefan Rajan, Jose |
| author_facet | Krishnan, Syam G. Harilal, Midhun Izan Izwan, Misnon Reddy, M. Venkatashamy Adams, Stefan Rajan, Jose |
| author_sort | Krishnan, Syam G. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Three morphologies of magnesium cobaltite (MgCo2O4), viz. cuboidal microcrystals, nanoflowers, and nanospheres, were synthesized using hydrothermal and molten salt methods and evaluated their electrochemical energy storage properties. Among them cuboidal microcrystal and nanoflowers were obtained by a facile hydrothermal route – the former with ethylene glycol and the latter with hexadecyltrimethylammonium bromide as surfactants. The cuboidal microcrystals showed layered flake microstructure with an appreciable space between the layers (~ 100 nm), which would facilitate ion movement between the flakes. The electrochemical studies of the materials revealed the superiority of MgCo2O4 cuboidal microcrystals as a charge storage medium over the nanoflowers and nanospheres, the reasons for this is deeply investigated and reported herewith. The specific charge stored in the MgCo2O4 cuboidal microcrystal electrode was ~ 345 C g−1 at a specific current of 1 A g−1 which was superior to nanoflowers (~ 178 C g−1) and nanospheres (~ 139 C g−1) at the similar current density in 3 M LiOH electrolyte. The MgCo2O4 cuboidal microcrystals also demonstrated superior charge retention (~ 110%) after 3000 cycles over the other electrodes demonstrating its practical utility as a charge storage material. |
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| format | Article |
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| institution | Universiti Malaysia Pahang |
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| language | English |
| last_indexed | 2025-11-15T02:13:01Z |
| publishDate | 2017 |
| publisher | Elsevier |
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| spelling | ump-183982018-04-04T07:12:43Z http://umpir.ump.edu.my/id/eprint/18398/ Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes Krishnan, Syam G. Harilal, Midhun Izan Izwan, Misnon Reddy, M. Venkatashamy Adams, Stefan Rajan, Jose QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering Three morphologies of magnesium cobaltite (MgCo2O4), viz. cuboidal microcrystals, nanoflowers, and nanospheres, were synthesized using hydrothermal and molten salt methods and evaluated their electrochemical energy storage properties. Among them cuboidal microcrystal and nanoflowers were obtained by a facile hydrothermal route – the former with ethylene glycol and the latter with hexadecyltrimethylammonium bromide as surfactants. The cuboidal microcrystals showed layered flake microstructure with an appreciable space between the layers (~ 100 nm), which would facilitate ion movement between the flakes. The electrochemical studies of the materials revealed the superiority of MgCo2O4 cuboidal microcrystals as a charge storage medium over the nanoflowers and nanospheres, the reasons for this is deeply investigated and reported herewith. The specific charge stored in the MgCo2O4 cuboidal microcrystal electrode was ~ 345 C g−1 at a specific current of 1 A g−1 which was superior to nanoflowers (~ 178 C g−1) and nanospheres (~ 139 C g−1) at the similar current density in 3 M LiOH electrolyte. The MgCo2O4 cuboidal microcrystals also demonstrated superior charge retention (~ 110%) after 3000 cycles over the other electrodes demonstrating its practical utility as a charge storage material. Elsevier 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/18398/1/Ceramic%20International.pdf Krishnan, Syam G. and Harilal, Midhun and Izan Izwan, Misnon and Reddy, M. Venkatashamy and Adams, Stefan and Rajan, Jose (2017) Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes. Ceramics International, 43 (15). pp. 12270-12279. ISSN 0272-8842. (Published) https://www.journals.elsevier.com/ceramics-international/ DOI: 10.1016/j.ceramint.2017.06.089 |
| spellingShingle | QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering Krishnan, Syam G. Harilal, Midhun Izan Izwan, Misnon Reddy, M. Venkatashamy Adams, Stefan Rajan, Jose Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title | Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title_full | Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title_fullStr | Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title_full_unstemmed | Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title_short | Effect of processing parameters on the charge storage properties of MgCo2O4 electrodes |
| title_sort | effect of processing parameters on the charge storage properties of mgco2o4 electrodes |
| topic | QC Physics QD Chemistry TK Electrical engineering. Electronics Nuclear engineering |
| url | http://umpir.ump.edu.my/id/eprint/18398/ http://umpir.ump.edu.my/id/eprint/18398/ http://umpir.ump.edu.my/id/eprint/18398/ http://umpir.ump.edu.my/id/eprint/18398/1/Ceramic%20International.pdf |