以金属Cu基板上脉冲电沉积Ni纳米晶薄膜作为催化剂,在乙醇火焰中制备了直立、无缠绕阵列碳纳米管.利用原子力显微镜(AFM)、扫描电子显微镜(SEM)、透射电镜(TEM)和激光拉曼谱仪(Raman)对不同工艺制备的Ni纳米晶薄膜和阵列碳纳米管的形貌进行了表征.结果表明:通过综合控制脉冲电沉积参数、电沉积时间和火焰中的合成时间,可以获得大面积、密集、均匀、直立、无缠绕、形态良好、重复性高的阵列碳纳米管.脉冲电沉积Ni纳米晶和合成无缠绕阵列碳纳米管的最佳工艺条件是:脉冲电沉积正、负脉冲的工作频率为154Hz、占空比为38.5%、电沉积时间为1min、基板预热至600℃、火焰中停留1min.通过对生长机理的研究发现:当电沉积时间较短时,获得的Ni纳米晶薄膜较薄,具有较高的局域粗糙程度和催化活性,有利于碳纳米管的同时大面积"拥挤生长"形成阵列结构;另外,通过调整脉冲电沉积参数,可以控制Ni纳米晶的大小,从而控制碳纳米管的长径比,当长径比较小时即可获得无缠绕的阵列碳纳米管.
参考文献
| [1] | 李峰,白朔,成会明.纳米碳管[J].新型炭材料,2000(03):79-80. |
| [2] | 戴贵平,刘敏,王茂章,成会明.纳米碳管电化学储氢的研究进展[J].新型炭材料,2002(03):70-74. |
| [3] | 王敏炜,李凤仪,彭年才.碳纳米管--新型的催化剂载体[J].新型炭材料,2002(03):75-79. |
| [4] | 张滨,刘畅,成会明,才庆魁.纳米碳管内包覆外来物质的研究进展[J].新型炭材料,2003(03):174-180. |
| [5] | 李莉香,李峰,英哲,杨全红,成会明.纳米碳管/聚合物功能复合材料[J].新型炭材料,2003(01):69-74. |
| [6] | 佟钰,任文才,赵志刚,刘畅,成会明.真空度对纳米碳管场发射性能的影响[J].新型炭材料,2003(02):101-105. |
| [7] | 魏飞,张强,骞伟中,徐光辉,项荣,温倩,王垚,罗国华.碳纳米管阵列研究进展[J].新型炭材料,2007(03):271-282. |
| [8] | 曹宗良,王健农,丁冬雁,戴杰华,余帆.化学气相沉积法快速生长定向纳米碳管[J].新型炭材料,2003(01):48-52. |
| [9] | 朱宏伟,慈立杰,梁吉,魏秉庆,徐才录,吴德海.浮游催化法半连续制取碳纳米管的研究[J].新型炭材料,2000(01):48-51. |
| [10] | Ren Z F;Huang Z P;Xu J W et al.Synthesis of large arrays of well-aligned carbon nanotubes on glass[J].Science,1998,282:1105-1107. |
| [11] | Cheol Jin Lee;Dae Woon Kim;Tae Jae Lee;Young Chul Choi;Young Soo Park;Young Hee Lee;Won bong Choi;Nae Sung Lee;Gyeong-Su Park;Jong Min Kim .Synthesis of aligned carbon nanotubes using thermal chemical vapor deposition[J].Chemical Physics Letters,1999(5/6):461-468. |
| [12] | Lee CJ.;Kang SY.;Lee JH.;Park J. .Growth and field electron emission of vertically aligned multiwalled carbon nanotubes[J].Chemical Physics Letters,2000(1/2):175-180. |
| [13] | Qiaoliang Bao;Chunxu Pan .Electric field induced growth of well aligned carbon nanotubes from ethanol flames[J].Nanotechnology,2006(4):1016-1021. |
| [14] | Bao Q;Zhang H;Pan C .Electric-field-induced microstructural transformation of carbon nanotubes[J].Applied Physics Letters,2006,89:063124. |
| [15] | 潘春旭,Liming Yuan,Kozo Saito.扩散火焰合成碳纳米管研究[J].新型炭材料,2001(03):24-27. |
| [16] | Yuan LM.;Hu WC.;Chen Z.;Saito K. .Ethylene flame synthesis of well-aligned multi-walled carbon nanotubes[J].Chemical Physics Letters,2001(1/2):23-28. |
| [17] | Wenchong Hu;Dawei Gong;Zhi Chen;Liming Yuan;Kozo Saito;Craig A. Grimes;Padmakar Kichambare .Growth of well-aligned carbon nanotube arrays on silicon substrates using porous alumina film as a nanotemplate[J].Applied physics letters,2001(19):3083-3085. |
| [18] | Lee G W;Jurng J;Hwang J .Synthesis of carbon nanotubes on a catalytic metal substrate by using an ethylene inverse diffusion flame[J].CARBON,2004,42:667-691. |
| [19] | Gyo Woo Lee;Jongsoo Jurng;Jungho Hwang .Formation of Ni-catalyzed multiwalled carbon nanotubes and nanofibers on a substrate using an ethylene inverse diffusion flame[J].Combustion and Flame,2004(1/2):167-175. |
| [20] | Wilson Merchan-Merchan;Alexei V. Saveliev;Lawrence A. Kennedy .High-rate flame synthesis of vertically aligned carbon nanotubes using electric field control[J].Carbon: An International Journal Sponsored by the American Carbon Society,2004(3):599-608. |
| [21] | Pan C;Bao Q .Well-aligned carbon nanotubes from ethanol flame[J].Journal of Materials Science Letters,2002,21(24):1927-1929. |
| [22] | Liu YL;Fu Q;Pan CX .Synthesis of carbon nanotubes on pulse plated Ni nanocrystalline substrate in ethanol flames[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(11):2264-2271. |
| [23] | Chunxu Pan;Yueli Liu;Feng Cao;Jianbo Wang;Yaoyao Ren .Synthesis and growth mechanism of carbon nanotubes and nanofibers from ethanol flames[J].Micron: The international research and review journal for microscopy,2004(6):461-468. |
| [24] | Aus M J;Szpunar B;Erb U et al.Electrical resistivity of bulk nanocrystalline nickel[J].Journal of Applied Physics,1994,75(07):3632-3634. |
| [25] | Yin K M;Jan S L .Current pulse plating of nickel-iron alloys on rotating disk electrodes[J].Surface and Coatings Technology,1996,79(1-3):252-262. |
| [26] | Qu NS.;Zhu D.;Chan KC.;Lei WN. .Pulse electrodeposition of nanocrystalline nickel using ultra narrow pulse width and high peak current density[J].Surface & Coatings Technology,2003(2/3):123-128. |
| [27] | Yoon H J;Kang H S;Shin J S et al.External-grid induced well-aligned carbon nanotubes grown on corning glass at extremely low temperature of about 400℃[J].PHYSICA B,2002,323:344-346. |
| [28] | G. W. Ho;A. T. S. Wee;J. Lin;W. C. Tjiu .Synthesis of well-aligned multiwalled carbon nanotubes on Ni catalyst using radio frequency plasma-enhanced chemical vapor deposition[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2001(1/2):73-77. |
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%