Activated Carbon-Embedded Reduced Graphene Oxide Electrodes for Capacitive Desalination

Ahmed, T; Cha, JS; Park, CG; Shon, HK; Han, DS; Park, H

Activated Carbon-Embedded Reduced Graphene Oxide Electrodes for Capacitive Desalination

Ahmed, T Cha, JS Park, CG Shon, HK Han, DS Park, H

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Publisher:: KOREAN ELECTROCHEMISTRY SOC
Publication Type:: Journal Article
Citation:: Journal of Electrochemical Science and Technology, 2023, 14, (3), pp. 222-230
Issue Date:: 2023-08-01

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Field	Value	Language
dc.contributor.author	Ahmed, T
dc.contributor.author	Cha, JS
dc.contributor.author	Park, CG
dc.contributor.author	Shon, HK
dc.contributor.author	Han, DS
dc.contributor.author	Park, H
dc.date.accessioned	2024-04-30T03:12:14Z
dc.date.available	2024-04-30T03:12:14Z
dc.date.issued	2023-08-01
dc.identifier.citation	Journal of Electrochemical Science and Technology, 2023, 14, (3), pp. 222-230
dc.identifier.issn	2093-8551
dc.identifier.issn	2288-9221
dc.identifier.uri	http://hdl.handle.net/10453/178490
dc.description.abstract	Capacitive deionization of saline water is one of the most promising water purification technologies due to its high energy efficiency and cost-effectiveness. This study synthesizes porous carbon composites composed of reduced graphene oxide (rGO) and activated carbon (AC) with various rGO/AC ratios using a facile chemical method. Surface characterization of the rGO/AC composites shows a successful chemical reduction of GO to rGO and incorporation of AC into rGO. The optimized rGO/AC composite electrode exhibits a specific capacitance of ~243 F g in a 1 M NaCl solution. The galvanostatic charging-discharging test shows excellent reversible cycles, with a slight shortening in the cycle time from the ~260-1 to the 530thcycle. Various monovalent sodium salts (NaF, NaCl, NaBr, and NaI) and chloride salts (LiCl, NaCl, KCl, and CsCl) are deionized with the rGO/AC electrode pairs at a cell voltage of 1.3 V. Among them, NaI shows the highest specificth adsorption capacity of ~22.2 mg g. Detailed surface characterization and electrochemical analyses are conducted.-1.
dc.language	English
dc.publisher	KOREAN ELECTROCHEMISTRY SOC
dc.relation.ispartof	Journal of Electrochemical Science and Technology
dc.relation.isbasedon	10.33961/jecst.2023.00066
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Activated Carbon-Embedded Reduced Graphene Oxide Electrodes for Capacitive Desalination
dc.type	Journal Article
utslib.citation.volume	14
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
dc.date.updated	2024-04-30T03:12:12Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	14
utslib.citation.issue	3

Abstract:

Capacitive deionization of saline water is one of the most promising water purification technologies due to its high energy efficiency and cost-effectiveness. This study synthesizes porous carbon composites composed of reduced graphene oxide (rGO) and activated carbon (AC) with various rGO/AC ratios using a facile chemical method. Surface characterization of the rGO/AC composites shows a successful chemical reduction of GO to rGO and incorporation of AC into rGO. The optimized rGO/AC composite electrode exhibits a specific capacitance of ~243 F g in a 1 M NaCl solution. The galvanostatic charging-discharging test shows excellent reversible cycles, with a slight shortening in the cycle time from the ~260-1 to the 530thcycle. Various monovalent sodium salts (NaF, NaCl, NaBr, and NaI) and chloride salts (LiCl, NaCl, KCl, and CsCl) are deionized with the rGO/AC electrode pairs at a cell voltage of 1.3 V. Among them, NaI shows the highest specificth adsorption capacity of ~22.2 mg g. Detailed surface characterization and electrochemical analyses are conducted.-1.

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http://hdl.handle.net/10453/178490