Hydrogen Underpotential Adsorption Measured Chronocoulometrically on Platinum Deposited on Glassy Carbon and Polyaniline

• Autorzy: Wzorek B. , Kurek S. S. , Stokłosa A.
• Języki publikacji: EN

Abstrakty

EN

Hydrogen underpotential deposition was studied by chronocoulometry with the initial potentials fixed by saturating the acid solution with hydrogen of defined partial pressure. Adsorption charges obtained from Anson plots enabled plotting adsorption isotherms in the range 0–400 mV vs. RHE. Lateral interaction parameters, g, calculated from the isotherms point out very strong repulsive interactions at very low coverages, most probably due to structure changes occurring upon desorption of bisulfate and, but less pronounced, for perchlorate an ions. Since the g parameter is roughly constant for theta 0.3 through 0.7, Frumkin type adsorption may be assumed in that range.

Słowa kluczowe

EN

hydrogen underpotential deposition; hydrogen adsorption isotherm; platinum on glassy carbon; platinum on polyaniline

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2008
• Tom: Vol. 82, nr 8
• Strony: 1649--1649
• Opis fizyczny: –1664, Bibliogr. 44 poz., rys.

Twórcy

autor

Wzorek B.

autor

Kurek S. S.

autor

Stokłosa A.

• Faculty of Chemical Engineering and Technology, Cracow University of Technology,ul. Warszawska 24, 31-155 Kraków, Poland,

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