Naslov
Nickel and nickel-tungsten alloys as catalysts for hydrogen evolution

Autori
Grubač, Zoran ; Metikoš-Huković, Mirjana ; Radić, Nikola

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
4th Croatian Symposium on Electrochemistry : Book of abstracts / Gojo, Miroslav ; Mandić, Zoran - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2006, 59-59

Skup
Croatian Symposium on Electrochemistry (4 ; 2006)

Mjesto i datum
Primošten, Hrvatska, 28.05.2006. - 01.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
nickel; nickel-alloys; hydrogen evolution; linear polarization; electrochemical impedance spectroscopy

Sažetak
Catalytic properties of sputter deposited nanocrystalline nickel (nc-Ni) and Ni-W alloys for the hydrogen evolution reaction have been investigated in an alkaline electrolyte solution by linear polarization and electrochemical impedance spectroscopy measurements. The best performance toward the hydrogen evolution reaction demonstrates the Ni90W10 alloy in accordance with the prediction based on the electronic structure calculations and the enhanced density of states at the Fermi level of the 3d Ni band. Improved catalytic activity for the hydrogen evolution reaction of nc-Ni in comparison with polycrystalline Ni was in accordance with an increase in the intercrystalline volume fraction at the very small grain size of the sputter deposited nickel.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA