研究了水平阴极方式复合电沉积Ni-MWCNTs(Ni-多壁碳纳米管).采用硫酸镍基础电解液,添加适当表面活性剂和光亮剂,MWCNTs为2～2.5 g/L,电流密度为2.5 A/dm2时,获得的Ni-MWCNTs沉积层结构致密,复合沉积层中MWCNTs含量达22.45%.复合电沉积层表面微观形貌照片显示,MWCNTs在复合电沉积层中占主要体积,镍的电结晶形态呈球形,结晶点位置位于MWCNTs管壁缺陷处及部分管端处,MWCNTs的管端和管壁缺陷处的Ni晶粒相互连接,形成牢固的复合沉积层.复合电沉积层中MWCNTs含量受电解液中MWCNTs浓度、电流密度以及光亮剂影响,在MWCNTs上的Ni沉积层连续性直接受MWCNTs管壁上缺陷的数量和连续性影响,形成晶核的缺陷尺度至少在1 nm以上.
参考文献
| [1] | Chen XH.;Cheng FQ.;Li SL.;Zhou LP.;Li DY. .Electrodepo sited nickel composites containing carbon nanotubes[J].Surface & Coatings Technology,2002(2/3):274-278. |
| [2] | Arai S;Endo M .[J].Electrochemistry Communications,2003,5(09):797. |
| [3] | Arai S;Endo M;Hashizume S;Shimojima Y .Nickel-coated carbon nanofibers prepared by electroless deposition[J].Electrochemistry communications,2004(10):1029-1031. |
| [4] | Arai S;Endo M;Kaneko N .[J].CARBON,2004,42(03):641. |
| [5] | Surender M;Balasubramaniam R;Basu B .Electrochemical behavior of electrodeposited Ni-WC composite coatings[J].Surface & Coatings Technology,2004(1):93-97. |
| [6] | Sombatsompop N;Sukeemith K;Markpin T et al.[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2004,381(1-2):175. |
| [7] | Baughman R H;Zakhidov A A;Walt A .[J].Science,2002,297(02):787. |
| [8] | Lee S. M.;Park K. S. .Hydrogen adsorption and storage in carbon nanotubes[J].Synthetic Metals,2000(3):209-216. |
| [9] | Fazle Kibria A K M;Mo Y H;Park K S et al.[J].International Journal of Hydrogen Energy,2001,26(08):823. |
| [10] | Prosini P P;Pozio A;Botti S et al.[J].Journal of Power Sources,2003,118(1-2):265. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%