Electrocrystallization of Pb and Pb assisted Al on aluminum electrode from molten salt (AlCl3–NaCl–KCl)

Electrodeposition of metals from non-aqueous solutions

“…The electrochemical deposition of aluminum and lead from the basic molten AlCl 3 -NaCl-KCl mixture on an aluminum electrode at 180 • C was studied by voltammetry, as well as the potential and current transient and constant current deposition. In basic solutions the deposit morphology was dull grey, spongy and non-compact, while in the presence of PbCl 2 smoother and non-porous aluminum was formed [167].…”

The kinetics process of a Pb(ii)/Pb(0) couple and selective fabrication of Li–Pb alloys in LiCl–KCl melts

“…The reduction/oxidation peaks B/B′, detected at −0.40 V/−0.20 V, are related to the deposition and oxidation of metallic Pb. 28,31 It is obvious that a series of redox peaks between the peaks A/A′ and B/B′ correspond to the formation and re-dissolution of different Li–Pb intermetallics. The details are discussed in part of electrochemical co-reduction of Li( i ) and Pb( ii ) in LiCl–KCl melts.…”

“…So far, the electrochemical behavior of Pb( ii ) has been explored in molten chlorides by some investigators. 28–35 They reported that the reduction reaction of Pb( ii ) is limited by mass transport of Pb( ii ) in molten AlCl 3 –NaCl–KCl, 28 LiCl–KCl, 29–33 NaCl–KCl 34 and ZnCl 2 –2NaCl 35 melts. Meanwhile, the diffusion coefficients for Pb( ii ) ions were calculated at different temperatures by cyclic voltammetry (CV) and chronopotentiometry (CP).…”

“…However, there is sparse information about the electrochemical formation of Pb based alloys in molten salts. Only the preparation of Al–Pb alloys 28 and Mg–Li–Pb alloys 31 has been reported in molten AlCl 3 –NaCl–KCl and LiCl–KCl–PbCl 2 –MgCl 2 melts, respectively.…”