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Visits: 85842018 AMS now reading: 1
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Popczyk M., Budniok A., Scholl H., Blaszczyk T. |
ELECTROLYTIC PRODUCTION AND CHARACTERIZATION OF NI-CO-P AND NI-W-P LAYERS |
Abstract
Ni-P, Ni-Co-P and Ni-W-P layers were obtained in galvanostatic conditions, at the current density jdep= 0.200 A·cm-2. The X-ray diffraction method was used to determine phase composition of the layers and the atomic absorption spectrometry was applied to specify their chemical composition. A metallographic, stereoscopic and tunneling microscope and also form Talysurf-type profilograph were used for cross-section and surface morphology characterization of the layers. The behaviour of obtained layers was investigated in the processes of hydrogen and oxygen evolution from 5 mol·dm-3 KOH solution, using voltammetry method. It was ascertained that, introduction of cobalt or tungsten into Ni-P matrix, lead to obtain the layers about very developed surface. Thus obtained layers may be useful in application as electrode materials in electrochemistry.
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Keywords: Amorphous Ni-P matrix|cobalt|tungsten|electrolytic layers| |
No 2 (2005), p. 161-165 |
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