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TMPACAlCl3离子液体中恒电流电沉积铝

第64卷第3期 化工学报 V01.64No.3 2013年3月 CIESC Journal March 2013

尹小梅1,徐联宾1’2,单南南1,崔节振1,陈建峰h2

(1北京化工大学教育部超重力工程研究中心;

2北京化工大学有机无机复合材料国家重点实验室,北京100029)

摘要:合成了不同TMPAC和A1C1。摩尔比的TMPAC—A1C1。离子液体,并测定了其在不同温度下的电导率。在 摩尔比为1:2的TMPAC A1C1。离子液体中进行了恒电流电沉积实验,研究了温度、电流密度、搅拌速度和添 加剂甲苯等对沉积层的影响。结果表明:在相同条件下摩尔比为1:2的TMPAC—A1C1s离子液体电导率最大,

当温度为80。C,电流密度为20mA・CITI~,搅拌速度为500r・min_1时,沉积层质量较好且电流效率较高;甲

苯的加入,增大了TMPAC一2A1CI。离子液体的电导率,降低了槽电压,当添加甲苯的体积分数为50%,电流密

度为23mA・cml时,可以得到较为致密、色泽良好、平整而均匀的沉积层。

关键词:铝;电沉积;离子液体;电导率;甲苯

DOI:10.3969/j.issn.0438—1157.2013.03.033

中图分类号:O 646.5文献标志码:A 文章编号:0438—1157(2013)03~1022—08

Constant current electrodeposition of aluminum from

TMPAC—AICl3ionic liquids

YIN Xiaomeil,XU Lianbinl.一,SHAN Nannanl,CUI Jiezhenl,CHEN Jianfen91・2

(1Research Center for High Gravity Engineering and Technology,Ministry of Education;2State Key

Laboratory of Organic—Inorganic Composites,Beijing University of Chemical Technology,Beijing 100029,China)

Abstract:TMPAC—A1C13ionic liquids with different molar ratios of TMPAC and A1C13were synthesized, and their conductivities were measured at different temperatures.The study was performed by means of constant current electrolysis,and the effects of temperature,current density,stirring speed and toluene additive amount on the deposited aluminum layers were investigated.Conductivity of TMPAC—A1C13ionic liquids reached a maximum with 1:2molar ratio of TMPAC to A1C13at 80℃.Better quality deposit and higher current efficiency could be achieved at the same temperature with current density of 20mA・cIn一2 and stirring speed of 500r・min~.Conductivity of the ionic liquid increased but voltage of the electrolytic cell decreased with the addition of toluene.A dense,bright,smooth and uniformly distributed deposit was

obtained at current density of 23mA・cm_2when volume

percent

of toluene was 50%.

Key words:aluminum;electrodeposition;ionic liquid;conductivity;toluene

2012—06—07收到初稿,2012—10—26收到修改稿。

联系人:徐联宾。第一作者:尹小梅(1986一),女,硕士研 究生。

基金项目:国家重点基础研究发展计划项目(2009CB219903); 国家自然科学基金项目(20971012,51172014);教育部留学回国 人员科研启动基金项目(LX200904)。

Received date:201206—07.

Corresponding author:Prof.XU Lianbin,xulb@mail.huct. http://www.sodocs.net/doc/6c19da8e16fc700abb68fcb5.html

Foundation item:supported by the National Basic Research Program of China(2009CB219903)。the National Natural Science Foundation of China(20971012,51172014)and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry(LX2009—04).

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