1994
DOI: 10.1016/0013-4686(94)00262-2
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Voltammetric studies of tantalum electrodeposition baths

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Cited by 60 publications
(39 citation statements)
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“…The study showed that Nd(III) and Gd(III) could be reduced by alloying with the cathodic material (Cu or Ni) at far more anodic potentials than on an inert cathode; this so-called 'depolarization effect'allows the theoretical extraction efficiency of these lanthanides to be enhanced up to 100%. Concerning the titration of Ln ions during electrolysis, previous studies in our laboratory, showed that square wave voltammetry (SWV) is a suitable technique to monitor the electroactive species content of molten fluoride media [16,17]. Consequently, as the lanthanide ion concentration decreases during extraction runs, SWV can be used to check the Nd(III) and Gd(III) contents without sampling the molten solution.…”
Section: Previous Results Obtained On the Electrochemical Behaviour Omentioning
confidence: 98%
“…The study showed that Nd(III) and Gd(III) could be reduced by alloying with the cathodic material (Cu or Ni) at far more anodic potentials than on an inert cathode; this so-called 'depolarization effect'allows the theoretical extraction efficiency of these lanthanides to be enhanced up to 100%. Concerning the titration of Ln ions during electrolysis, previous studies in our laboratory, showed that square wave voltammetry (SWV) is a suitable technique to monitor the electroactive species content of molten fluoride media [16,17]. Consequently, as the lanthanide ion concentration decreases during extraction runs, SWV can be used to check the Nd(III) and Gd(III) contents without sampling the molten solution.…”
Section: Previous Results Obtained On the Electrochemical Behaviour Omentioning
confidence: 98%
“…The cell was heated using a programmable furnace and the temperature was measured using a chromel-alumel thermocouple. A more detailed description of the device can be found in previous papers of our laboratory such as the one referred in [9]. …”
Section: Methodsmentioning
confidence: 99%
“…The cell was placed under argon atmosphere (U grade, less than 5 ppm O 2 ). A more detailed description of the device is given in refs [8,9]. The solvent used in the electrolytic bath was the eutectic LiF/CaF 2 (Merck 99.99%) (79.5/20.5 molar percent), with a melting point of 762°C.…”
Section: Methodsmentioning
confidence: 99%