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II. Electrodeposition/removal of nickel in a spouted electrochemical reactor / Pengpeng Grimshaw in Industrial & engineering chemistry research, Vol. 50 N° 16 (Août 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 16 (Août 2011) . - pp. 9525-9531 Titre : II. Electrodeposition/removal of nickel in a spouted electrochemical reactor Type de document : texte imprimé Auteurs : Pengpeng Grimshaw, Auteur ; Joseph M. Calo, Auteur ; Pezhman A. Shirvanian, Auteur Année de publication : 2011 Article en page(s) : pp. 9525-9531 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Electrochemical  reactor  Electrodeposition Résumé : An investigation is presented of nickel electrodeposition from acidic solutions in a cylindrical spouted electrochemical reactor. The effects of solution pH, temperature, and applied current on nickel removal/recovery rate, current efficiency, and corrosion rate of deposited nickel on the cathodic particles were explored under galvanostatic operation. Nitrogen sparging was used to decrease the dissolved oxygen concentration in the electrolyte in order to reduce the nickel corrosion rate, thereby increasing the nickel electrowinning rate and current efficiency. A numerical model of electrodeposition, including corrosion and mass transfer in the particulate cathode moving bed, is presented that describes the behavior of the experimental net nickel electrodeposition data quite well. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24425193 [article] II. Electrodeposition/removal of nickel in a spouted electrochemical reactor [texte imprimé] / Pengpeng Grimshaw, Auteur ; Joseph M. Calo, Auteur ; Pezhman A. Shirvanian, Auteur . - 2011 . - pp. 9525-9531. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 16 (Août 2011) . - pp. 9525-9531 Mots-clés : Electrochemical  reactor  Electrodeposition Résumé : An investigation is presented of nickel electrodeposition from acidic solutions in a cylindrical spouted electrochemical reactor. The effects of solution pH, temperature, and applied current on nickel removal/recovery rate, current efficiency, and corrosion rate of deposited nickel on the cathodic particles were explored under galvanostatic operation. Nitrogen sparging was used to decrease the dissolved oxygen concentration in the electrolyte in order to reduce the nickel corrosion rate, thereby increasing the nickel electrowinning rate and current efficiency. A numerical model of electrodeposition, including corrosion and mass transfer in the particulate cathode moving bed, is presented that describes the behavior of the experimental net nickel electrodeposition data quite well. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24425193