کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
188937 459670 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Description of the melt stoichiometry in the electrodeposition of boron from KCl–KF–KBF4 melts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Description of the melt stoichiometry in the electrodeposition of boron from KCl–KF–KBF4 melts
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 61, 1 February 2012, Pages 165–172
نویسندگان
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