AC impedance study of a synthetic hydrotalcite-like compound modified electrode in aqueous solution
作者： E Scavetta , D Tonelli , M Giorgetti , F Nobili , R Marassi
DOI: 10.1016/S0013-4686(02)00847-2
关键词: Inorganic chemistry 、 Hydrotalcite 、 Electrochemistry 、 Ion 、 Aqueous solution 、 Electrode 、 Dielectric spectroscopy 、 Ionic bonding 、 Ionic conductivity 、 Chemistry
摘要: Abstract This paper deals with the electrochemical characterisation of Ni/Al–Cl hydrotalcite modified electrodes. The impedance spectroscopy technique has been used in order to study electronic and ionic conduction, both inside on surface material. contributions have separated behaviour respective parameters studied as a function potential. In determine kinetic limiting step overall process we performed experiments at different temperatures, calculated activation energies electron hopping ion transport process. addition system OH− concentrations (pH 9.7–12.8) aim clarifying role ions
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