采用化学气相沉积法(CVD),以正己烷为碳源制备单壁碳纳米管(SWNTs),研究了纯化后的单壁碳纳米管在空气中的稳定性,分别对刚纯化后和在空气中放置5d、10d和15d后的样品进行了SEM、HRTEM和TG表征,结果发现单壁碳纳米管的氧化程度随在空气中放置时间的延长而增加,15d后几乎完全转化为无定形碳.表明单壁碳管在空气中不稳定,很容易氧化,需要密闭保存.
参考文献
| [1] | Iijima S.Helical Microtubules of Graphitic Carbon[J].Nature,1991:354,56. |
| [2] | Thess A;Lee R et al.Crystalline Ropes of Metallic Carbon Nanotubes[J].Science,1996,273:483. |
| [3] | Journet C;Maser W K et al.Large-scale Production of Single-walled Carbon Nanotubes by the Electric-arctechnique[J].Nature,1997,388:756. |
| [4] | Ren Z F;Huang Z P et al.Electronic Properties of Nanotubes[J].Science,1999,282:1105. |
| [5] | Rao A M .Diameter-selective Raman Scattering from Vibrational Modes in Carbon Nanotubes[J].Science,1997,275:187. |
| [6] | Amelinckx S;Bernaerts D;Zhang XB;Vantendeloo G;Vanlanduyt J .A STRUCTURE MODEL AND GROWTH MECHANISM FOR MULTISHELL CARBON NANOTUBES[J].Science,1995(5202):1334-1338. |
| [7] | Pan Z;Xie SS et al.Very Long Carbon Nanotubes[J].Nature,1998,394:631. |
| [8] | Terrones M.Controlled Production of Aligned-nanotubes Bundles[J].Nature,1997:388. |
| [9] | Dresselhaus M S;Ekulund P C .Phonon in Carbon Nanotubes[J].Advances in Physics,2000,49:748. |
| [10] | Huang HJ.;Kajiura H.;Yamada A.;Ata M. .Purification and alignment of arc-synthesis single-walled carbon nanotube bundles[J].Chemical Physics Letters,2002(5-6):567-572. |
| [11] | Shelimov KB.;Rinzler AG.;Huffman CB.;Smalley RE.;Esenaliev RO. .Purification of single-wall carbon nanotubes by ultrasonically assisted filtration[J].Chemical Physics Letters,1998(5-6):429-434. |
| [12] | L.Vaccarini;C.Goze .purification procedure of carbon nanotubes[J].Synthetic Metals,1999(1/3):2492-2493. |
| [13] | Colomer J F;Piedigrosso P;Fonseca A et al.Different Purification Method of Carbon Nanotubes Produced by Catalytic Synthesis[J].Synthetic Metals,1999,103:2482-2483. |
| [14] | Kitiyanan B.;Harwell JH.;Resasco DE.;Alvarez WE. .Controlled production of single-wall carbon nanotubes by catalytic decomposition of CO on bimetallic Co-Mo catalysts[J].Chemical Physics Letters,2000(3-5):497-503. |
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%