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Evaluation of porous electrode properties using metal-air electrochemical system

Nor Hairin, Assayidatul Laila and Othman, Raihan and Ani, Mohd Hanafi and Saputra, Hens and Yahya, Muhd Zu Azhan (2012) Evaluation of porous electrode properties using metal-air electrochemical system. In: 1st International Conference on Energy and Environmental Protection, ICEEP 2012, 23rd-24th June 2012, Hohhot, China.

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Abstract

This work explores the use of metal-air electrochemical system to evaluate porous electrode properties i.e. specific surface area and pore volume density. Porous zinc electrodes are prepared from an acidic, chloride electrolytic bath of varying supporting electrolyte (NH4Cl) formulation to produce electrodeposits of distinctive properties. Nitrogen physisorption at 77 K is utilized to evaluate the specific surface area and pore volume density of the electrodes. The zinc electrodeposits prepared from all electrolytic bath formulations are then assembled into zinc-air cells as the anodic electrode and characterized according to their limiting current density and discharge capacity. It is found that the variation in limiting current density matches that of BET surface area and the trend for discharge capacity follows that of pore volume density.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 2593/24230
Uncontrolled Keywords: zinc-air cell; metal-air electrochemical system; porous electrode; electrodeposited zinc electrode; nitrogen physisorption
Subjects: T Technology > TP Chemical technology > TP250 Industrial electrochemistry
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Science
Depositing User: Raihan Othman
Date Deposited: 11 Jun 2012 09:20
Last Modified: 01 Feb 2019 10:29
URI: http://irep.iium.edu.my/id/eprint/24230

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