Relation between nickel crystalline structures and their electrocatalytic properties: Part I. Determination of structural characteristics of nickel electrodes obtained by vacuum deposition

Different nickel configurations need to be defined and characterized. These different structures are obtained by vacuum deposition on several substrates. Apart from the nature of substrate, the influence of deposit and annealing temperature have been studied. We observe that the variations of the nickel structure concern: unit cell, diameter and shape of the crystallites, crystallization facies, stacking faults, microvacancies, vacancies, etc. Four films are described in detail.