A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste

Porous zinc anodes have been fabricated from a mixture of zinc and graphite powder using gelatinized agar solution as the binding agent. Agar is a biodegradable polysaccharide polymer extracted from marine algae. The graphite content and the agar solution concentration were varied to find the best...

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Main Authors:	Othman, Raihan, Abdul Hamid, Yahaya, Arof, Abdul Kariem
Format:	Article
Language:	English
Published:	Kluwer Academic Publishers, Netherlands 2002
Subjects:	TJ807 Renewable energy sources TK2896 Production of electricity by direct energy conversion TP250 Industrial electrochemistry
Online Access:	http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/1/JAE_2002.pdf

id	iium-3767
recordtype	eprints
spelling	iium-37672011-09-12T08:34:23Z http://irep.iium.edu.my/3767/ A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste Othman, Raihan Abdul Hamid, Yahaya Arof, Abdul Kariem TJ807 Renewable energy sources TK2896 Production of electricity by direct energy conversion TP250 Industrial electrochemistry Porous zinc anodes have been fabricated from a mixture of zinc and graphite powder using gelatinized agar solution as the binding agent. Agar is a biodegradable polysaccharide polymer extracted from marine algae. The graphite content and the agar solution concentration were varied to find the best electrode composition. Zinc–air cells were fabricated using the porous zinc anode, a commercially available air cathode sheet and KOH electrolyte in the form of elastic jelly granules. The electrode performance was evaluated from the zinc–air cell galvanostatic discharge capability. In the cell design, a thin agar layer was introduced between the electrode-gelled electrolyte interfaces, resulting in substantially improved cell discharge performance. The inclusion of particulate graphite into the electrode did not enhance the electrode performance due to the formation of a graphite-rich layer, which obscured the electrode porosity. A zinc–air cell employing the optimized porous zinc electrode demonstrated a capacity of 2066 mA h and specific energy density of 443 Wh/kg. Kluwer Academic Publishers, Netherlands 2002-12 Article PeerReviewed application/pdf en cc_by_nc http://irep.iium.edu.my/3767/1/JAE_2002.pdf Othman, Raihan and Abdul Hamid, Yahaya and Arof, Abdul Kariem (2002) A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste. Journal of Applied Electrochemistry, 32 (12). pp. 1347-1353. ISSN 1572-8838 (O), 0021-891X (P) http://www.springerlink.com/content/r220l78m33061w85/fulltext.pdf doi:10.1023/A:1022619414787
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ807 Renewable energy sources TK2896 Production of electricity by direct energy conversion TP250 Industrial electrochemistry
spellingShingle	TJ807 Renewable energy sources TK2896 Production of electricity by direct energy conversion TP250 Industrial electrochemistry Othman, Raihan Abdul Hamid, Yahaya Arof, Abdul Kariem A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
description	Porous zinc anodes have been fabricated from a mixture of zinc and graphite powder using gelatinized agar solution as the binding agent. Agar is a biodegradable polysaccharide polymer extracted from marine algae. The graphite content and the agar solution concentration were varied to find the best electrode composition. Zinc–air cells were fabricated using the porous zinc anode, a commercially available air cathode sheet and KOH electrolyte in the form of elastic jelly granules. The electrode performance was evaluated from the zinc–air cell galvanostatic discharge capability. In the cell design, a thin agar layer was introduced between the electrode-gelled electrolyte interfaces, resulting in substantially improved cell discharge performance. The inclusion of particulate graphite into the electrode did not enhance the electrode performance due to the formation of a graphite-rich layer, which obscured the electrode porosity. A zinc–air cell employing the optimized porous zinc electrode demonstrated a capacity of 2066 mA h and specific energy density of 443 Wh/kg.
format	Article
author	Othman, Raihan Abdul Hamid, Yahaya Arof, Abdul Kariem
author_facet	Othman, Raihan Abdul Hamid, Yahaya Arof, Abdul Kariem
author_sort	Othman, Raihan
title	A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
title_short	A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
title_full	A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
title_fullStr	A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
title_full_unstemmed	A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
title_sort	zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste
publisher	Kluwer Academic Publishers, Netherlands
publishDate	2002
url	http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/ http://irep.iium.edu.my/3767/1/JAE_2002.pdf
first_indexed	2023-09-18T20:11:43Z
last_indexed	2023-09-18T20:11:43Z
_version_	1777407522290794496

A zinc–air cell employing a porous zinc electrode fabricated from zinc–graphite-natural biodegradable polymer paste

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