| Abstract: | The structural and morphological characteristics of electroless nickel phosphorous films (P content from 4.0 to 13.8 at %)
are described. Different treatments such as heat (400°C, 1 h) or electrochemical (anodizing at 0.5 V vs. SCE followed by multi-cycle
polarization) are employed and their effect on the alloys properties is analyzed using x-ray diffraction and atomic force
microscopy. Information on the performance of the as-deposited and treated electroless Ni-P coatings as anodes for oxygen
evolution reaction, in alkaline media, is taken from the steady state polarization curves and the correspondent Tafel slopes.
The data shows the importance of the deposit crystalline nature and of the electrochemical treatment on the formation of β-Ni(OH)2 and subsequently β-Ni(OOH), crucial for obtaining Ni-P films with good electrocatalytic properties.
Published in Russian in Elektrokhimiya, 2006, Vol. 42, No. 12, pp. 1427–1434.
Based on the report delivered at the 8th International Frumkin Symposium “Kinetics of the Electrode Processes.” October 18–22,
2005, Moscow.
The text was submitted by the authors in English. |
