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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.32013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TMPACA1C1。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

Constantcurrentelectrodepositionofaluminumfrom

TMPAC—AICl3ionicliquids

YINXiaomeil,XULianbinl.一,SHANNannanl,CUIJiezhenl,CHENJianfen91・2(1ResearchCenterforHighGravityEngineeringand

Technology,Ministryof

Education;2

StateKey

Laboratory

ofOrganic—InorganicComposites,BeijingUniversityofChemicalTechnology,Beijing100029,China)

Abstract:TMPAC—A1C13ionicliquidswithdifferentmolarratiosof

TMPACandA1C13

weresynthesized,

andtheirconductivitiesweremeasured

at

differenttemperatures.Thestudywasperformedbymeansof

constant

current

electrolysis,andtheeffectsoftemperature,currentdensity,stirringspeedandtoluene

additiveamounton

thedepositedaluminumlayerswereinvestigated.ConductivityofTMPAC—A1C13ionic

liquidsreacheda

maximumwith1:2molarratioofTMPAC

to

A1C13

at

80℃.Betterqualitydepositand

higher

current

efficiencycouldbeachieved

at

thesametemperaturewithcurrent

densityof20mA・cIn一2

andstirringspeedof500r・min~.Conductivityoftheionicliquidincreasedbutvoltageoftheelectrolyticcelldecreasedwiththeadditionoftoluene.Adense,bright,smoothanduniformlydistributeddepositwasobtained

at

current

densityof23mA・cm_2whenvolume

percent

oftoluenewas50%.

Keywords:aluminum;electrodeposition;ionicliquid;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)。

Receiveddate:201206—07.

Correspondingauthor:Prof.XULianbin,xulb@mail.huct.

edu.cn

Foundation

item:supported

by

theNationalBasic

Research

ProgramofChina(2009CB219903)。theNationalNaturalScienceFoundation

of

China(20971012,51172014)and

the

Scientific

ResearchFoundationfortheReturned

Overseas

ChineseScholars,

StateEducation

Ministry(LX2009—04).

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