1997
DOI: 10.1590/s0100-40421997000600009
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Desenvolvimento e caracterização de recobrimentos de Ni-Co e de seus óxidos mistos para a produção de oxigênio por eletrólise alcalina da água

Abstract: WATER ELECTROLYSIS. This paper describes the development and characterisation of Ni-Co coatings to be used as anodes in water electrolysis. Chemical oxidation of the surface was performed through thermal treatment at 400 o C for 10 h. The resulting surfaces were analysed by X-ray diffraction, EDX, SEM, cyclic voltammetry and constant current electrolysis. The electrochemical oxidation occurring on bare surfaces during electrolysis promotes the formation of thick oxide layers resulting in loss of activity. In o… Show more

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