添加剂的吸附行为及其对锌镍合金镀层结构的影响  

Adsorption Behaviour of Additives and their EHect on the Structure of Zn-Ni Alloy Electrodeposits

作　　者：杨防祖 许书楷 周绍民 

机构地区：[1]化学系物理化学研究所

出　　处：《厦门大学学报（自然科学版）》1995年第4期572-576,共5页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金

摘　　要：采用电化学法研究锌镍镀液中有机添加剂ＡＡ－１和ＤＩＥ的吸附行为及其对电沉积过程的阻化作用，并用ｘ射线衍射法研究所获得Ｚｎ－Ｎｉ合金沉积层的相组成和织构，结果表明，ＡＡ－１和ＤＩＥ在电极表面吸附并阻化Ｚｎ－Ｎｉ合金共沉积；它们单独存在或共存时，均造成合金沉积物的Ｎｉ含量较无添加剂的为低，合金沉积物的相组成由单独存在时的η相转变为共存时的η＋ｒ相；由于ＡＡ－１和ＤＩＥ的协同作用而强烈地促进沉积物（１００）晶面的形成。The adsorption behaviour of the organic add itives AA-1 and DIE in Zn-Niplating solution and their blocking effects during electrodeposition are studied by means of electrochemistry,and the phase and structure of the alloy deposits are also determined by x-ray diffrac-tion。The resuIts show that AA-1 and DIE are adsorbed on the surface of the electrode and obstruct the codeposition of Zn-Ni alloy;the Ni content of the aIloy deposited from the bath withAA-1 and DIE both or alone,is lower than that without additive;the phase of the alloy depositschanges from η phase with additive existance alone to(η+γ)phase coexistance;the formation(100)face of the deposits is strongly promoted for the coeffection of AA-1 and DIE。

关 键 词：添加剂 协同作用 吸附 锌镍合金 镀层 

分 类 号：TQ153.2[化学工程—电化学工业] O647.314[理学—物理化学]