Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials

Manganese Ferrite Oxides were synthesis in a bid to ascertain their specific capacitance for the use as supercapacitor electrodes. 5 samples of varying composition in the form of MnxFe3-xO4 were synthesised via chemical co-precipitation and post-annealing. Said 5 samples had x values of 0.5, 1, 1.5,...

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Main Author: Quah, Ivan Tian Min
Other Authors: Jason Xu Zhichuan
Format: Final Year Project
Language:English
Published: 2016
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Online Access:http://hdl.handle.net/10356/66347
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-663472023-03-04T15:30:31Z Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials Quah, Ivan Tian Min Jason Xu Zhichuan School of Materials Science and Engineering DRNTU::Engineering Manganese Ferrite Oxides were synthesis in a bid to ascertain their specific capacitance for the use as supercapacitor electrodes. 5 samples of varying composition in the form of MnxFe3-xO4 were synthesised via chemical co-precipitation and post-annealing. Said 5 samples had x values of 0.5, 1, 1.5, 2 and 2.5 and were put under electrochemical and materials characterisation using techniques such as cyclic voltammetry, TEM and XRD. The cyclic voltammetry was conducted using a 3 electrode system with 1M of KOH as the electrolyte. The highest specific capacitance measured was from Mn1.5Fe1.5O4 of 114.35 F/g and an increasing trend was observed for the first 3 samples, namely Mn0.5Fe2.5O4, MnFe2O4 and Mn1.5Fe1.5O4. A decrease in Cs was subsequently observed for the next sample followed by an increase for the last sample. Said phenomena of decrease/increase could not be adequately explained however, to explain the phenomena; several reasons were put forward such as, insufficient amount of Mn3+ and Fe3+ ions and the presence of an unidentified phase. Bachelor of Engineering (Materials Engineering) 2016-03-30T01:59:05Z 2016-03-30T01:59:05Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/66347 en Nanyang Technological University 41 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Quah, Ivan Tian Min
Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
description Manganese Ferrite Oxides were synthesis in a bid to ascertain their specific capacitance for the use as supercapacitor electrodes. 5 samples of varying composition in the form of MnxFe3-xO4 were synthesised via chemical co-precipitation and post-annealing. Said 5 samples had x values of 0.5, 1, 1.5, 2 and 2.5 and were put under electrochemical and materials characterisation using techniques such as cyclic voltammetry, TEM and XRD. The cyclic voltammetry was conducted using a 3 electrode system with 1M of KOH as the electrolyte. The highest specific capacitance measured was from Mn1.5Fe1.5O4 of 114.35 F/g and an increasing trend was observed for the first 3 samples, namely Mn0.5Fe2.5O4, MnFe2O4 and Mn1.5Fe1.5O4. A decrease in Cs was subsequently observed for the next sample followed by an increase for the last sample. Said phenomena of decrease/increase could not be adequately explained however, to explain the phenomena; several reasons were put forward such as, insufficient amount of Mn3+ and Fe3+ ions and the presence of an unidentified phase.
author2 Jason Xu Zhichuan
author_facet Jason Xu Zhichuan
Quah, Ivan Tian Min
format Final Year Project
author Quah, Ivan Tian Min
author_sort Quah, Ivan Tian Min
title Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
title_short Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
title_full Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
title_fullStr Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
title_full_unstemmed Synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
title_sort synthesis and characterisation of manganese ferrite oxides for use in pseudocapacitive super capacitors as electrode materials
publishDate 2016
url http://hdl.handle.net/10356/66347
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