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24-12-2014 дата публикации

Method for electrolyzing ferric oxide by using deep eutectic solvent to prepare ferroferric oxide

Номер: CN104233361A
Автор: HUA YIXIN, QI CANCAN, XU CUNYING, LI JIAN, LI YAN, ZHANG QIBO, JIE YAFEI, RU JUANJIAN, CHEN KONGHAO, GONG KAI, ZHOU ZHONGREN
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The invention relates to a method for electrolyzing ferric oxide by using a deep eutectic solvent to prepare ferroferric oxide and belongs to the technical fields of wet metallurgy and materials. The method comprises the following steps: preparing a cathode plate, namely mixing ferroferric oxide with PVA binder and a pore-forming agent; pressing and molding, and then roasting at 800 DEG for 3 hours to prepare the cathode plate; preparing a deep eutectic solvent, namely mixing choline chloride with ethylene glycol evenly to form the deep eutectic solvent; carrying out direct-current electrolysis on graphite serving as an anode and the prepared cathode plate serving as a cathode in the deep eutectic solvent so that ferric oxide on the cathode plate is reduced into ferroferric oxide; and carrying out ultrasonic washing and vacuum drying on the obtained ferroferric oxide by using ethanol and distilled water, so as to obtain ferroferric oxide. The method is short in technological process, simple ...

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Номер записи: 1
28-01-2015 дата публикации

Method for electroplating Ni-Fe alloy with ionic liquid

Номер: CN104313655A
Автор: HUA YIXIN, JIE YAFEI, XU CUNYING, LI JIAN, ZHANG QIBO, LI YAN, GONG KAI, RU JUANJIAN, ZHOU ZHONGREN, QI CANCAN, CHEN KONGHAO
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The invention relates to a method for electroplating Ni-Fe alloy with ionic liquid and belongs to the technical field of nonferrous materials. The method comprises the following steps: in an inert gas environment, firstly mixing choline chloride and carbamide to form the ionic liquid, then respectively adding nickel salt and iron salt to the ionic liquid, and uniformly mixing to obtain an ionic liquid electrolyte; placing an cathode and an anode into the ionic liquid electrolyte by using a pretreated matrix as the cathode and an iron plate, or a nickel plate or graphite as the anode, wherein the distance of the anode and the cathode is kept at 0.2-5cm; carrying out constant-current deposition at the temperature of 60-110 DEG C and control current density of 3.0-11.0mA/cm<-2> for 0.1-3 hours to obtain a cathode test piece; and sequentially washing the obtained cathode test piece with acetone and distilled water, and drying to obtain Ni-Fe alloy coating. The method aims to overcome the defects ...

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Номер записи: 2