Roughness factor evaluation of thermal arc sprayed skeleton nickel electrodes |
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| Authors: | Andrea Kellenberger Nicolae Vaszilcsin Waltraut Brandl |
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| Institution: | (1) Faculty of Industrial Chemistry and Environmental Engineering, University “Politehnica” of Timisoara, Piata Victoriei nr. 2, 300006 Timisoara, Romania;(2) Material Science Department, University of Applied Sciences Gelsenkirchen, Neidenburger Str. 10, 45877 Gelsenkirchen, Germany |
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| Abstract: | Skeleton nickel electrodes obtained by thermal arc spraying technique were characterized by different methods including scanning
electron microscopy, energy dispersive X-ray analysis, X-ray diffraction, and electrochemical impedance spectroscopy. The
skeleton electrodes reveal a highly porous structure with a surface roughness of about 270, determined from double layer capacitances
obtained from impedance spectra. |
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| Keywords: | Roughness factor Electrochemical impedance spectroscopy Skeleton nickel electrode |
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