Cathodes with compound coating modified with metal oxides

• Autorzy: Nawrat G. , Gonet M. , Szczepanik R.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with investigations on the influence of the chemical composition of alloyed compound coatings modified with metal oxides. The effect of different additives on the physico-chemical properties of nickel electrodes covered with a coating of the alloy nickel-cobalt-phosphorus subjected to a test analysis in an alkaline solution with an addition of iron(III) salt as a substance poisoning the surface of the electrodes has been determined. As additives the following binary oxides were applied: RuO2-TiO2, TiO2-CeO2, Co3O4-CeO2, Co3O4-MnO2, Co3O4-Pt, Co3O4-RuO2. The highest electrochemical activity was achieved in the case of Co3O4-MnO2 coating.

Słowa kluczowe

EN

amorphous coatings; transition elements oxides; composite electrodes; hydrogen evolution; overpotential of hydrogen evolution

PL

powłoki amorficzne; elementy przemiany tlenków; elektrody złożone; wydzielanie wodoru; nadpotencjał z wydzielania wodoru

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2003
• Tom: Vol. 5, nr 3
• Strony: 61--64
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Nawrat G.

autor

Gonet M.

autor

Szczepanik R.

• Institute of Chemistry, Inorganic Technology and Electrochemistry, Silesian University of Technology, Bolesława Krzywoustego 6, 44-100 Gliwice,

Bibliografia

• (1) Thomas V. H., Rudd E. J., Energy Saving Advances in the Chlor-Alkali Industry, Modern Chlor-Alkali Technology, Ed. C.Jackson, ElIis Horwood Limited, Chichester, 1983, vol. 2, ch. 10, p. 159.
• (2) Nawrat G., Małachowski A., Gonet M., Korczyński A., Powłoki stopowe o obniżonym nadpotencjale wydzielania wodóru. Problemy Eksploatacji, 1996, 23, z. 4, p. 213.
• (3) Isfort H., Uhde's Membrane Celi Technology, Modern Chlor-Alkali Technology, Ed. Jackson C., ElIis Horwood Limited, Chichester, 1983, vol. 2, ch. 9, p. 132.
• (4) Nawrat G., Gonet M., Buczek-Karczewska T., Małachowski A., Korczyński A., The Influence of Diaphragm Structure and Activated Cathodes on the Performance of the Chlorine Electrolyser, Modern Chlor-Alkali Technology, Ed. Sealey S., SCI, 1998, vol. 7, ch. 10, p. 75.
• (5) Tavares A. B., Trasatti S., Co-Deposited Composite Layers of Ni+Ru02 Electrocatalysis of Hydrogen Evolution, Modern Chlor-Alkali Technology, Ed. Sealey S., SCI, 1998, vol. 7, ch. 9, p. 65.
• (6) Gonet M., Nawrat G., Interpreting of the Polarization Curves in Terms of Varying Transfer Coefficient, Annais of the PoIish Chemical Society 2001, Zjazd Nauk. PTChem i SITPChem, Katowice 2001, p. 30.