Electrocatalytical Properties of Palladium-Decorated Cobalt Coatings Obtained by Electrodeposition and Galvanic Displacment

• Autorzy: Skibińska K. , Kutyła D. , Kołczyk K. , Kwiecińska A. , Kowalik R. , Żabiński P.

Identyfikatory

DOI

10.24425/123842

• Języki publikacji: EN

Abstrakty

EN

This work presents the studies on the electrochemical process of thin palladium layers formation onto electrodeposited cobalt coatings. The suggested methodology consists of the preparation of thick and smooth cobalt substrate via galvanostatic electrodeposition. Cobalt coatings were prepared under different cathodic current density conditions from acidic bath containing cobalt sulphate and addition of boric acid. Obtained cobalt layers were analyzed by x-ray diffraction to determine their phase composition. Freshly prepared cobalt coatings were modificated by the galvanic displacement method in PdCl₂ solution, to obtain smooth and compact Pd layer. The comparison of electrocatalytic properties of Co coatings with Co/Pd ones enabled to determine the influence of Palladium presence in cathodic deposits on the hydrogen evolution process.

Słowa kluczowe

EN

linear voltammetry; electrodeposition; palladium; cobalt; galvanic displacement reaction; catalytic activity

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1517--1521
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr., wzory

Twórcy

autor

Skibińska K.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

autor

Kutyła D.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

autor

Kołczyk K.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

autor

Kwiecińska A.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

autor

Kowalik R.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

autor

Żabiński P.

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Al. A. Mickiewicza 30, Krakow, Poland

Bibliografia

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• [6] P. Żabiński, K. Mech, R. Kowalik, Co-Mo and Co-Mo-C Alloys Deposited in a Magnetic Field of High Intensity and their Electrocatalytic Properties, Arch. Metall. Mater. 57, 127-133 (2012). doi:10.2478/v10172-012-0001-z.
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• [10] P. Żabiński, K. Mech, R. Kowalik, Electrocatalytically active Co-W and Co-W-C alloys electrodeposited in a magnetic field, Electrochim. Acta. 104, 542-548 (2013). doi:10.1016/j.electacta.2012.11.047.
• [11] K. Mech, G. Boczkal, P. Pałka, P. Żabiński, R. Kowalik, Synthesis of Co-Pd alloys by co-electroreduction of aquachloro-cobalt (II) and palladium (II) complexes, J. Solid State Electrochem. 18, 3121-3127 (2014). doi:10.1007/s10008-013-2363-1.
• [12] K. Mech, P. Żabiński, R. Kowalik, T. Tokarski, K. Fitzner, Electrodeposition of Co-Pd alloys from ammonia solutions and their catalytic activity for hydrogen evolution reaction, J. Appl. Electrochem. 44, 97-103 (2013). doi:10.1007/s10800-013-0605-7.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).