Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution (Articolo in rivista) (literal)

Anno

• 2000-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/S0013-4686(00)00322-4 (literal)

Alternative label

• Cattarin S.; Frateur I.; Guerriero P.; Musiani M. (2000)
  Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution
  in Electrochimica acta; Pergamon Press, Oxford (Regno Unito)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Cattarin S.; Frateur I.; Guerriero P.; Musiani M. (literal)

Pagina inizio

• 2279 (literal)

Pagina fine

• 2288 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S0013468600003224 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 45 (literal)

Rivista

• Electrochimica acta (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 12 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 14 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1,2,4 : IPELP CNR, Corso Stati Uniti 4, 35127, Padova, Italy / 3 : ICTIMA CNR, Corso Stati Uniti 4, 35127, Padova, Italy (literal)

Titolo

• Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution (literal)

Abstract

• PbO2 + CoOx composites have been deposited by anodisation of sulphamate solutions containing Pb2+ and Co2+ ions. The effect of experimental variables, like total Co2+ + Pb2+ concentration, Co2+/(Co2+ + Pb2+) ratio, potential, pH and angular speed of the anode, on the deposit composition has been investigated. The results are discussed according to the theories developed for the cathodic deposition of alloys, concluding that the system conforms to the trends typical of irregular deposition. XRD and XPS analyses have shown that the deposits are amorphous, but have not allowed to fully elucidate the nature of the Co containing compound(s) codeposited with PbO2. When used as anodes for oxygen evolution in aqueous NaOH, the PbO2 + CoOx composites exhibit Tafel slopes of ca. 60 mV decade(-1) and a reaction order of 1 with respect to OH-. Their overpotential is similar to that of PbO2 + Co3O4 composites prepared by anodisation of suspensions. A marked activation of the PbO3 + CoOx electrodes, during ca. 3 days of continuous oxygen evolution, is explained as the result of an increase of the Co surface concentration, as shown by XPS and impedance data. (literal)

Editore

• Pergamon Press (Editore)

Prodotto di

• Istituto di chimica inorganica e delle superfici (ICIS) (Istituto)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)

Autore CNR

• SANDRO CATTARIN (Unità di personale interno)
• PAOLO GUERRIERO (Unità di personale interno)
• MARCO MUSIANI (Persona)

Insieme di parole chiave

• Keywords of "Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di chimica inorganica e delle superfici (ICIS) (Istituto)
• Institute of Condensed Matter Chemistry and Energy Technologies (ICMATE) (Istituto)

Autore CNR di

• PAOLO GUERRIERO (Unità di personale interno)
• MARCO MUSIANI (Persona)
• SANDRO CATTARIN (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Electrochimica acta (Rivista)

Editore di

• Pergamon Press (Editore)

Insieme di parole chiave di

• Keywords of "Electrodeposition of PbO2+CoOx composites by simultaneous oxidation of Pb2+ and Co2+ and their use as anodes for O2 evolution" (Insieme di parole chiave)