کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
188937 | 459670 | 2012 | 8 صفحه PDF | دانلود رایگان |
This paper attempts to describe a plausible scheme of reaction(s) that governs the electrodeposition of boron from melts containing KCl, KF and KBF4 (at 1073 K). Four different stoichiometric equations were formulated based on the existence of various chloride–fluoride complexes derived from the fluoroborate anion. During the electrolysis all these chloride–fluoride complex anions of boron would undergo decomposition. The net variation in the ratio nCl−/nF−nCl−/nF− thus computed based on these four equations by assuming uniform depletion of boron from the melt due to electrodeposition was compared with the experimental values obtained during many electrowinning runs. These analyses describe the progress of the electrodeposition of boron from KCl, KF and KBF4 melt.
► The reaction(s) scheme of boron electrodeposition from KCl–KF–KBF4 melts is reported.
► Stoichiometric equations were considered based on formation of chloride-fluoride complex anions.
► Boron deposition followed the mechanism governed by two simultaneous reactions.
Journal: Electrochimica Acta - Volume 61, 1 February 2012, Pages 165–172