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Ruthenium Dioxide as Cathode Material for Hydrogen Evolution in Hydroxide and Chlorate Solutions
KTH, Superseded Departments, Chemical Engineering and Technology.ORCID iD: 0000-0001-5816-2924
KTH, Superseded Departments, Chemical Engineering and Technology.
1993 (English)In: Journal of The Electrochemical Society, Vol. 140, no 11, 3123-3129 p.Article in journal (Refereed) Published
Abstract [en]

Ruthenium dioxide as electrocatalyst on an activated cathode for chlorate production was investigated with respect toits activity towards hydrogen evolution, hypochlorite reduction, and chlorate reduction, respectively. Investigations weremade in the presence, as well as in the absence, of a chromium hydroxide film in 1M NaOH and in typical chlorateelectrolyte. Low overvoltages for hydrogen evolution were found and, at technical current densities, an effect of catalystcoating thickness. Commercial DSA® electrodes with RuO2 as the active compound were tested as cathodes and were lessactive but more stable than the coatings produced by us. Hypochlorite and chlorate were reduced in the absence ofchromate, chlorate reduction being fast on ruthenium dioxide compared to the other electrode materials and by far thedominating cathodic reaction in chlorate electrolyte without chromate and hypochlorite at 70°C, 3 kA/m2

Place, publisher, year, edition, pages
1993. Vol. 140, no 11, 3123-3129 p.
Keyword [en]
catalysts; catalysis; ruthenium compounds; oxygen compounds; electrochemistry; electrochemical electrodes; reduction (chemical); reaction kinetics
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-13053DOI: 10.1149/1.2220996OAI: oai:DiVA.org:kth-13053DiVA: diva2:320383
Note
QC 20100525Available from: 2010-05-25 Created: 2010-05-25 Last updated: 2013-02-08Bibliographically approved
In thesis
1. Electrode reactions in the chlorate process
Open this publication in new window or tab >>Electrode reactions in the chlorate process
2002 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2002. 47 p.
Series
Trita-KET, ISSN 1104-3466 ; 163
National Category
Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-3442 (URN)
Public defence
2002-12-06, 00:00 (English)
Note
QC 20100525Available from: 2002-12-03 Created: 2002-12-03 Last updated: 2010-05-25Bibliographically approved
2. Activated Cathodes for the Hydrogen Evolution Reaction in Chlorate Manufacture
Open this publication in new window or tab >>Activated Cathodes for the Hydrogen Evolution Reaction in Chlorate Manufacture
1993 (English)Licentiate thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 1993. 33 p.
Series
TRITA-TEK, ISSN 0281-4110 ; 1993:01
Keyword
chlorate, cathode, ruthenium dioxide, chromate
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-107586 (URN)
Supervisors
Note

QC 20130208

Available from: 2013-02-08 Created: 2012-12-13 Last updated: 2013-02-08Bibliographically approved

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Publisher's full texthttp://link.aip.org/link/?JES/140/3123/1

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Cornell, Ann

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