Anomalous codeposition of cobalt and ruthenium from chloride-sulfate baths
  • Metaadatok
Tartalom: http://www.springerlink.com/content/a7277h41405015vv/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
Anomalous codeposition of cobalt and ruthenium from chloride-sulfate baths
Létrehozó:
Jafari Fesharaki, Marjaneh
Nabiyouni, Gholam Reza
Dégi, Júlia
Pogány, Lajos
Révész, Ádám
Bakonyi, Imre
Péter, László
Kiadó:
Springer
Dátum:
2012
Téma:
QC06 Physics of condensed matter / szilárdtestfizika
QD02 Physical chemistry / fizikai kémia
Tartalmi leírás:
Codeposition of Ru and Co was studied at room temperature and at 50oC with various Ru3+ and Co2+ concentrations in the electrolyte. The codeposition of Co and Ru proved to be anomalous since no pure Ru could be obtained in the presence of Co2+ in the electrolyte, but a significant Co incorporation into the deposit was detected at potentials where the deposition of pure Co was not possible. The composition of the deposits varied monotonously with the change of the concentration ratio of Co2+ and Ru3+. The deposition of Ru was much hindered and the current efficiency was a few percent only when the molar fraction of Co in the deposit was low. Continuous deposits could be obtained only when the molar fraction of Co in the deposit was at least 40 at.%. The deposit morphology was related to the molar fraction of Co in the deposit. The X-ray diffractograms are in conformity with a hexagonal close-packed alloy and indicate the formation of nanocrystalline deposits. Two-pulse plating did not lead to a multilayer but to a Co-rich alloy. Magnetoresistance of the samples decreased with increasing Ru content.
Típus:
Article
PeerReviewed
Formátum:
application/pdf
Azonosító:
Jafari Fesharaki, Marjaneh and Nabiyouni, Gholam Reza and Dégi, Júlia and Pogány, Lajos and Révész, Ádám and Bakonyi, Imre and Péter, László (2012) Anomalous codeposition of cobalt and ruthenium from chloride-sulfate baths. Journal of Solid State Electrochemistry, 16 (2). pp. 715-722. ISSN 1432-8488 (print version), 1433-0768 (electronic version)
Kapcsolat: