کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
180261 | 459374 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrolysis of solid metal sulfide to metal and sulfur in molten NaCl–KCl
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Electrochemical desulfidation of solid sulfide has been studied for the first time in the mixed NaCl–KCl melt. At 700 °C, the equimolar NaCl–KCl enabled highly efficient transport of the S2− ion and high speed electro-reduction of porous WS2 pellets to W nanonodules (50–100 nm). The graphite anode was experimentally confirmed to be an ideal non-consumable anode, on which the S2− ion was oxidised to gaseous sulfur. The current efficiency of the electrolysis of WS2 was higher than 90% and the energy consumption could be lower than 1.23 kWh/kg-W. These findings promise new green methods for the preparation of various transition metals and alloys by electro-desufidation of their solid sulfides.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 13, Issue 12, December 2011, Pages 1492–1495
Journal: Electrochemistry Communications - Volume 13, Issue 12, December 2011, Pages 1492–1495
نویسندگان
Tao Wang, Haiping Gao, Xianbo Jin, Hualin Chen, Junjun Peng, George Z. Chen,