Study of the electro-oxidation of CoO and Co(OH)2 at 90 °C in alkaline medium
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | TRONEL, Frédéric | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GUERLOU-DEMOURGUES, Liliane | |
| hal.structure.identifier | Direction de la recherche | |
| dc.contributor.author | GOUBAULT, Lionel | |
| hal.structure.identifier | Direction de la recherche | |
| dc.contributor.author | BERNARD, Patrick | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DELMAS, Claude | |
| dc.date.issued | 2008 | |
| dc.identifier.issn | 0378-7753 | |
| dc.description.abstractEn | Cobalt is usually post-added as CoO or Co(OH)2 to nickel hydroxide at the positive electrode (nickel oxide electrode) of alkaline batteries, to form a conductive network. In the present work, we focus on the transformation of CoO and Co(OH)2 phases when oxidized at 90 °C. The Co3O4 phase is the majority product of such a reaction, with CoOOH as a secondary product. It is shown that the Co3O4 phase results from the reaction of the CoOOH phase, formed by electrochemical oxidation of Co(OH)2, with Co2+ species in the electrolyte, which is made possible by temperature. This process requires a global migration of the cobalt phases towards the current collector. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Alkaline batteries | |
| dc.subject.en | Cobalt oxide | |
| dc.subject.en | Electro-oxidation | |
| dc.title.en | Study of the electro-oxidation of CoO and Co(OH)2 at 90 °C in alkaline medium | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jpowsour.2008.01.005 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Power Sources | |
| bordeaux.page | 837-847 | |
| bordeaux.volume | 179 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00270303 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00270303v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Power%20Sources&rft.date=2008&rft.volume=179&rft.issue=2&rft.spage=837-847&rft.epage=837-847&rft.eissn=0378-7753&rft.issn=0378-7753&rft.au=TRONEL,%20Fr%C3%A9d%C3%A9ric&GUERLOU-DEMOURGUES,%20Liliane&GOUBAULT,%20Lionel&BERNARD,%20Patrick&DELMAS,%20Claude&rft.genre=article |
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