用氢气取代氦气作为缓冲气体,适当改进电弧反应装置并掺加一种生长促进剂可以有效地提高单壁纳米碳管的产量和质量.氢电弧法制备出的单壁纳米碳管堆积成膜状或网状,电镜下可见产物主要由相互缠绕的单壁纳米碳管束构成,纯度较高;激光拉曼分析结果表明制得的单壁纳米碳管直径较大.单壁纳米碳管产物在形貌和结构上的上述特征与氢气和生长促进剂的作用密切相关.
参考文献
| [1] | Iijima S;Ichihashi T .Single-shell carbon nanotubes of 1-nm diameter[J].Nature,1993,363:603-605. |
| [2] | Bethune D S;Kiang C H;de Vries M S et al.Colbalt-catalyzed growth of carbon nanotubes with single-atomic-layer walls[J].Nature,1993,363:605-607. |
| [3] | Treacy M M J;Ebbesen T W;Gibson J M .Exceptionally high Yong's modulus observed for individual carbon nanotubes[J].Nature,1996,381:678-680. |
| [4] | Tans S J;Devoret M H;Dai H et al.Individual single-wall carbon nanotubes as quantum wires[J].Nature,1997,386:474-477. |
| [5] | Deheer WA;Chatelain A;Ugarte D .A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE[J].Science,1995(5239):1179-1180. |
| [6] | Thess A;Lee R;Nikolaev P et al.Crystalline ropes of metallic carbon nanotubes[J].Science,1996,273:483-487. |
| [7] | Journet C;Master W K;Bernier P et al.Large-scale production of single-walled carbon nanotubes by the electric-arc technique[J].Nature,1997,388:756-758. |
| [8] | Cheng HM.;Su G.;Pan HY.;He LL.;Sun X.;Dresselhaus MS.;Li F. .Large-scale and low-cost synthesis of single-walled carbon nanotubes by the catalytic pyrolysis of hydrocarbons[J].Applied physics letters,1998(25):3282-3284. |
| [9] | Wang XK.;Mesleh M.;Jarrold MF.;Dravid VP.;Ketterson JB. Chang RPH.;Lin XW. .THE EFFECT OF HYDROGEN ON THE FORMATION OF CARBON NANOTUBES AND FULLERENES[J].Journal of Materials Research,1995(8):1977-1983. |
| [10] | Smalley R E .From dopyballs to nanowires[J].Materials Science and Engineering B,1993,19:1-7. |
| [11] | Maiti A;Brabel C J;Roland C et al.Theory of carbon nanotube growth[J].Physical Review B,1995,52:14850-14858. |
| [12] | Rao A M;Richter E;Bandow S et al.Diameter-selective Raman scattering from vibrational modes in carbon nanotubes[J].Science,1997,275:187-191. |
| [13] | Bandow S.;Saito Y.;Rao AM.;Grigorian L.;Richter E.;Eklund PC.;Asaka S. .Effect of the growth temperature on the diameter distribution and chirality of single-wall carbon nanotubes[J].Physical review letters,1998(17):3779-3782. |
| [14] | A. C. Dillon;K. M. Jones;T. A. Bekkedahl;C. H. Kiang;D. S. Bethune;M. J. Heben .STORAGE OF HYDROGEN IN SINGLE-WALLED CARBON NANOTUBES[J].Nature,1997(6623):377-379. |
| [15] | Liu C;Fan Y Y;Liu M et al.Hydrogen storage in single-walled carbon nanotubes at room temperature[J].Science,1999,286:1127-1129. |
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