Kinetics and thermodynamics of the electrodeposition of palladium, thallium, and tellurium from different baths

El-Khouly, A.; Hafez, M. A. H.; Kenawy, Ibrahim M.

doi:10.1134/s1023193506030037

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“…This film allows the metal cations to amalgamate. The solid electrode is generally glassy carbon (GCE) or carbon paste [12]. The processes involved are those of metallic electrodeposition on a foreign substrate.…”

Section: E E + >mentioning

confidence: 99%

Nucleation and Growth of Thallium on Thin Film Mercury Electrode: Voltammetric, Scanning Electron Microscopy, Chronoamperometric and Electrochemical Impedance Studies

Mahamane¹,

Guel²,

Fabre³

2022

AJAC

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Thallium is a heavy metal highly toxic to the biosphere. It can be determined by anodic stripping voltammetry after deposition on mercury film. The aim of this work is to study the conditions and mechanisms of deposition of Hg on glassy carbon electrode and Tl on Hg film by cyclic voltammetry, scanning electron microscopy, chronoamperometry and impedance techniques. The results showed a germination and growth of a 3D Hg phase on glassy carbon electrode. Similarly, the electrodeposition of Tl on Hg follows a 3D three-dimensional nucleation with diffusion controlled growth. The impedance measurements reveal an easier charge transfer on the Tl film.

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Section: E E + >mentioning

confidence: 99%