A preliminary study of a novel and simple redox battery for load levelling
A preliminary study of a novel and simple redox battery for load levelling
The electrochemical deposition of lead and lead dioxide from solutions of Pb(II) and methanesulfonic acid solution have been studied using cyclic voltammetry, rotating disc electrode and plating techniques together with the SEM. Vitreous carbon and nickel have been used as base materials for the deposition of lead. The latter was found to be more suitable in all conditions. Thick, compact and smooth deposits have been obtained from solution containing 0.4 M Pb(II) in 2 M methanesulfonic acid. Lignin sulfonate has been used in low concentrations as an additive to improve the characteristics of the deposit and good quality deposits can be achieved with current densities as high as 256 mA cm"^ and the current efficiency for deposition and dissolution is close to 100 %. Lead dioxide has been plated onto gold and vitreous carbon electrodes from the same solutions. The conditions for deposition must be carefully controlled in order to minimise interference from oxygen evolution and adhesion to the substrate is always a problem. However, it is possible to deposit layers ofPbOi at high rate with a good current efficiency. The thesis considers how the two electrode processes can be combined to give a novel rechargeable battery.
University of Southampton
Hazza, Ahmed A
29422804-fa67-4aca-8eb6-e1dc57c130fc
2001
Hazza, Ahmed A
29422804-fa67-4aca-8eb6-e1dc57c130fc
Hazza, Ahmed A
(2001)
A preliminary study of a novel and simple redox battery for load levelling.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
The electrochemical deposition of lead and lead dioxide from solutions of Pb(II) and methanesulfonic acid solution have been studied using cyclic voltammetry, rotating disc electrode and plating techniques together with the SEM. Vitreous carbon and nickel have been used as base materials for the deposition of lead. The latter was found to be more suitable in all conditions. Thick, compact and smooth deposits have been obtained from solution containing 0.4 M Pb(II) in 2 M methanesulfonic acid. Lignin sulfonate has been used in low concentrations as an additive to improve the characteristics of the deposit and good quality deposits can be achieved with current densities as high as 256 mA cm"^ and the current efficiency for deposition and dissolution is close to 100 %. Lead dioxide has been plated onto gold and vitreous carbon electrodes from the same solutions. The conditions for deposition must be carefully controlled in order to minimise interference from oxygen evolution and adhesion to the substrate is always a problem. However, it is possible to deposit layers ofPbOi at high rate with a good current efficiency. The thesis considers how the two electrode processes can be combined to give a novel rechargeable battery.
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Published date: 2001
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Local EPrints ID: 464438
URI: http://eprints.soton.ac.uk/id/eprint/464438
PURE UUID: 65ddd2bd-ae2f-48e2-9c27-2c57a01267d4
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Date deposited: 04 Jul 2022 23:38
Last modified: 16 Mar 2024 19:31
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Author:
Ahmed A Hazza
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