研究电流密度、温度、浓度和表面活性剂对电沉积微纳米晶铁电沉积过程的影响,SEM和XRD测试结果表明:于小电流密度、低温和高浓度下电流积,可得到片状α-Fe,而在大电流密度、高温和低浓度下电沉积则得到枝晶-αFe,表面活性剂对产物的形貌和组成没有影响.并讨论电沉积过程中产物的形成机制.
Effects of current density,reaction temperature,electrolyte concentration and surfactant on the electrochemical deposition of micro-nanocrystalline iron were studied.Morphologies and structures of the samples were characterized by SEM and XRD,the results showed that the electrodeposits is slice α-Fe under little current and the density,lower temperature and higher concentration,and the dentritic α-Fe is under opposite conditions,but the influence from surfactant is unconsicously.Moreover,the growth mechanism of the electrodeposits was also analysed here.
[1]Li Xin-yong(李新勇),Li Shu-ben(李树本).Progressin nanometer semiconductor materials[J].Progress inChemistry(in Chinese),1996,8(3):231-235.
[2]Klabunde K J.Nanoscale materials in chemistry[M].Beijing:Chemical Industry Press,2004.239-244.
[3]Rao C N R,M櫣ller A,Cheetham A K.The chemistryof nanomaterials:synthesis,properties and applications[M].Wiley-VCH,Weinheim,2004.740.
[4]Rao C N R.Chemical routes to nanocrystals,nanowires,and nanotubes[J].International Journal of Nano-science,2005,4(5-6):811-826.
[5]Xia X H,Schuster R,Kirchner V,et al.The growth ofsize-determined Cu clusters in nanometer holes on Au(111)due to a balance between surface and electro-chemical energy[J].Journal of Electroanal Chemistry,1999,461:102-109.
[6]Erb U,Elsherik A M,Palumbo G,et al.Synthesis,structure and properties of electroplated nanocrystallinematerials[J].Nanostructured Materials,1993,2(4):383-390.
[7]Zhao Yang-pei(赵阳培),Huang Yin-hui(黄因慧).Review of preparing nanocrystalline materials by electro-deposition[J].Materials Science and Engineering(inChinese),2003,21(1):126-129.
[8]Klabunde K J.Nanoscale materials in chemistry[M].Beijing:Chemical Industry Press,2004.41-50.
