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Article: Electrochemical generation of ozone in a membrane electrode assembly cell with convective flow

TitleElectrochemical generation of ozone in a membrane electrode assembly cell with convective flow
Authors
Issue Date2009
PublisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JES
Citation
Journal Of The Electrochemical Society, 2009, v. 156 n. 4, p. E75-E80 How to Cite?
AbstractHighly efficient electrochemical generation of ozone on doped tin dioxide anodes was reported recently. Here, we report the scale up of such ozone generation on a membrane electrode assembly (MEA) made with 8×13 cm -doped tin dioxide anode. The effects of water flow rate, operating voltage, and current on dissolved ozone concentration, ozone production, current efficiency, and energy efficiency are reported. Ozone production and current efficiency increased with water flow. Operating with a single MEA, 218 mgh of dissolved ozone was produced at an applied current of 6 A (current density=57.6 mA cm2). With four MEAs operated in a stack, the dissolved ozone production increased to 1.1 gh at a total current of 20.6 A (current density=49.5 mA cm2) and individual cell voltage of 3.3 V. For the multiple MEA operation, the highest current efficiency was 21.7% based alone on dissolved ozone generation. The lowest energy consumption achieved was 42 kWhkg (O3) at 643 mg ozone per hour at current of 10.1 A (current density=24.3 mA cm2) and water flow of 5.4 Lmin (linear velocity=7.03 cms). © 2009 The Electrochemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/58389
ISSN
2014 Impact Factor: 3.266
2013 SCImago Journal Rankings: 1.243
ISI Accession Number ID
Funding AgencyGrant Number
General Research Fund of Hong KongHKU2006/E
HKU700507P
Innovation Technology Seed FundITS/088/06
Funding Information:

This work has been financially supported by the General Research Fund of Hong Kong (grants no. HKU2006/E and no. HKU 700507P), and an Innovation Technology Seed Fund of Hong Kong (grant no. ITS/088/06). The support of Clarizon Ltd. U. K. is also acknowledged.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorCui, Yen_HK
dc.contributor.authorWang, Yen_HK
dc.contributor.authorWang, Ben_HK
dc.contributor.authorZhou, Hen_HK
dc.contributor.authorChan, KYen_HK
dc.contributor.authorLi, XYen_HK
dc.date.accessioned2010-05-31T03:29:26Z-
dc.date.available2010-05-31T03:29:26Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of The Electrochemical Society, 2009, v. 156 n. 4, p. E75-E80en_HK
dc.identifier.issn0013-4651en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58389-
dc.description.abstractHighly efficient electrochemical generation of ozone on doped tin dioxide anodes was reported recently. Here, we report the scale up of such ozone generation on a membrane electrode assembly (MEA) made with 8×13 cm -doped tin dioxide anode. The effects of water flow rate, operating voltage, and current on dissolved ozone concentration, ozone production, current efficiency, and energy efficiency are reported. Ozone production and current efficiency increased with water flow. Operating with a single MEA, 218 mgh of dissolved ozone was produced at an applied current of 6 A (current density=57.6 mA cm2). With four MEAs operated in a stack, the dissolved ozone production increased to 1.1 gh at a total current of 20.6 A (current density=49.5 mA cm2) and individual cell voltage of 3.3 V. For the multiple MEA operation, the highest current efficiency was 21.7% based alone on dissolved ozone generation. The lowest energy consumption achieved was 42 kWhkg (O3) at 643 mg ozone per hour at current of 10.1 A (current density=24.3 mA cm2) and water flow of 5.4 Lmin (linear velocity=7.03 cms). © 2009 The Electrochemical Society.en_HK
dc.languageengen_HK
dc.publisherElectrochemical Society, Inc. The Journal's web site is located at http://ojps.aip.org/JESen_HK
dc.relation.ispartofJournal of the Electrochemical Societyen_HK
dc.titleElectrochemical generation of ozone in a membrane electrode assembly cell with convective flowen_HK
dc.typeArticleen_HK
dc.identifier.emailChan, KY:hrsccky@hku.hken_HK
dc.identifier.emailLi, XY:xlia@hkucc.hku.hken_HK
dc.identifier.authorityChan, KY=rp00662en_HK
dc.identifier.authorityLi, XY=rp00222en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1149/1.3072686en_HK
dc.identifier.scopuseid_2-s2.0-61349170664en_HK
dc.identifier.hkuros164560en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-61349170664&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume156en_HK
dc.identifier.issue4en_HK
dc.identifier.spageE75en_HK
dc.identifier.epageE80en_HK
dc.identifier.isiWOS:000263717900044-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectGeneration of ozone in water via novel electrode materials-
dc.identifier.scopusauthoridCui, Y=8963567900en_HK
dc.identifier.scopusauthoridWang, Y=15021615600en_HK
dc.identifier.scopusauthoridWang, B=8922803000en_HK
dc.identifier.scopusauthoridZhou, H=7404742194en_HK
dc.identifier.scopusauthoridChan, KY=7406034142en_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK

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