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电化学沉积金属铜的分形枝晶生长控制与性能
引用本文:段涛,罗江山,唐永建,唐朝江.电化学沉积金属铜的分形枝晶生长控制与性能[J].强激光与粒子束,2011,23(1).
作者姓名:段涛  罗江山  唐永建  唐朝江
作者单位:1. 中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900; 2. 西南科技大学 极端条件物质特性实验室, 四川 绵阳 621010
基金项目:国家重点基础研究发展计划项目,四川省科技厅应用基础项目
摘    要: 以CuSO4/sub>为前驱体,HCl为添加剂,采用电化学沉积方法,在室温条件下制得了μm级、面心立方结构分形铜的枝状晶体,研究了铜离子浓度、硫酸浓度、电流密度、沉积时间、氯离子浓度等实验参数对分形枝状铜晶体尺寸、结构的影响。结果表明:硫酸的浓度对铜沉积物结构无明显影响;随着Cu2+/sup>浓度的不断增大,铜沉积物的分形效果越来越明显;增大电流密度(0.4~1.6 A·cm-2/sup>),铜沉积物由致密向多分枝的开放型转变;延长沉积时间(大于等于5 min),可获得含大量次级分枝铜的晶体;适当增加盐酸用量(0.05~0.20 mol/L),铜沉积物枝晶尺寸显著减小。最后讨论了分形枝晶铜在碱性条件下氧化甲醇的电化学性能。

关 键 词:分形结构  枝状晶体  多孔铜  电沉积
收稿时间:1900-01-01;

Growth control and properties of dendrite-like copper crystal synthesized by electrochemical deposition
Duan Tao,Luo Jiangshan,Tang Yongjian,Tang Chaojiang.Growth control and properties of dendrite-like copper crystal synthesized by electrochemical deposition[J].High Power Laser and Particle Beams,2011,23(1).
Authors:Duan Tao  Luo Jiangshan  Tang Yongjian  Tang Chaojiang
Institution:1. Research Center of Laser Fusion, CAEP, P. O. Box 919-987, Mianyang 621900, China; 2. Laboratory of Matter Characteristic Research under Extreme Conditions, Southwest University of Science and Technology, Mianyang 621010, China
Abstract:Using copper sulfate as the precursor and hydrochloric acid as the additive,dendrite-like copper crystals(DLCCs)with micrometer size and face-cubic structure were successfully fabricated by electrochemical deposition at room temperature.Effects of experimental parameters,such as concentrations of sulfate acid,copper sulfate,and hydrochloric acid,current density and deposition time,on size and structure of the DLCCs were investigated.It is indicated that the concentration of sulfate acid does not affect the ...
Keywords:fractal structure  dendrite-like crystals  porous metallic copper  electro-deposition  
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