Novel graphene-based materials for capacitive deionization and supercapacitors /
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(Published version)
Date
2015
Authors
Wimalasiri, Kathaththage Yasodinee Dilrukshi,
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thesis
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Abstract
Capacitive deionization (CDI) is an emerging environmentally benign electrochemical brackish water desalination technique. To be efficient, CDI requires electrode materials with characteristics including high electrical conductivity and specific capacitance to achieve high electrosorption capacity. One 2D nanomaterial which has this potential is graphene. A well-established method to synthesize bulk graphene is chemical reduction of graphene oxide (GO) which causes irreversible aggregation of nanosheets. However, to date, the properties of synthesized graphene are below its theoretically anticipated characteristics such as electrical conductivity ~ 7200 S/m and specific capacitance 550 F/g. This research aims to improve the quality of graphene synthesized by the chemical reduction method by improving the synthesis process and developing graphene-based advanced composites with controlled structure. The graphene was applied as electrode materials in CDI and extended to energy storage by supercapacitors.
School/Discipline
University of South Australia. SA Water Centre for Water Management and Reuse.
SA Water Centre for Water Management and Reuse.
SA Water Centre for Water Management and Reuse.
Dissertation Note
Thesis (PhD(Environmental Science))--University of South Australia, 2015.
Provenance
Copyright 2015 Kanaththage Wimalasiri.
Description
1 ethesis (xviii, 199 pages) :
illustrations (some colour)
Includes bibliographical references.
illustrations (some colour)
Includes bibliographical references.
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