采用化学气相沉积(CVD)法 ,使溶有少量杂质的乙炔在自制的过渡金属催化剂和S/P助剂的作用下热分解,合成了结构类似于DNA的微旋管状炭纤维,且具有很好的再现性.微旋管状炭纤维是由两根炭纤维规则地二重旋卷匹合而成旋管,其直径约5 μm.乙炔和氢气的比例及温度对产量及微观形貌有很大的影响.
参考文献
| [1] | 成会明 .新型炭材料的发展趋势[J].材料导报,1998,12(01):5-9. |
| [2] | Davis W R;Slawson R J;Rigby G R .An unusual form of carbon[J].Nature,1953,171:756-757. |
| [3] | Hillert J M;Lange N .Decomposition of acetylene,the structure of graphite filaments[J].Zeitschrift für Kristallographie,1958,111:24-25. |
| [4] | Baker R T K;Waite R J .Formation of carbonaseous deposits from the platinum-iron catalyzed decomposition of acetylene[J].Journal of Catalysis,1975,37:101-105. |
| [5] | Addamiano A .Preparation and properties of 2H SiC crystals[J].Journal of Crystal Growth,1982,58:617-622. |
| [6] | Motojima S.;Kasemura T.;Takeuchi S.;Iwanaga H.;Asakura S. .CATALYTIC EFFECTS OF METAL CARBIDES, OXIDES AND NI SINGLE CRYSTAL ON THE VAPOR GROWTH OF MICRO-COILED CARBON FIBERS[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(3):289-296. |
| [7] | 元岛栖二;岩永浩;Varadan V K .コスモミメテイツクなカボソマイクロコイルの气相合成とその特性[J].表面(日本),1998,36:28-36. |
| [8] | Seiji Motojima;Xiuqin Chen .Three-dimensional growth mec-hanism of cosmo-mimetic carbon microcoils obtained by chemical vapor deposition[J].Journal of Applied Physiology,1999,85(07):3919-3921. |
| [9] | Alstrup I .A new model explaining carbon filament growth on nickel,iron,and Ni-Cu alloy catalysts[J].Journal of Catalysis,1988,109:241-251. |
| [10] | Amelinckx S;Zhang X B;Bermaerts D et al.A formation mechanims for catalytically grown helix-shaped graphite nanotubes[J].Science,265:635-637. |
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%