請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43546
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 蔡曜陽 | |
dc.contributor.author | Jia-Shiang Su | en |
dc.contributor.author | 蘇嘉祥 | zh_TW |
dc.date.accessioned | 2021-06-15T02:23:11Z | - |
dc.date.available | 2015-08-15 | |
dc.date.copyright | 2009-08-19 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-08-18 | |
dc.identifier.citation | [1] P. W. Fowler, “Carbon cylinders: a class of closed-shell clusters“, Journal of The Chemical Society Faraday Transactions., 86 (1990), pp.2073.
[2] J. A. E. Gibson, “Early nanotubes”, Nature, 359 (1992), pp.369-369. [3] A. Oberlin and M. Endo, “Filamentous growth of carbon through benzene decomposition”, Journal of Crystal Growth, 32 (1976), pp.335-349. [4] S. Iijima, “Helical microtubules of graphitics carbon”, Nature, 354 (1991), pp.56-58 [5] K. Suenaga, M. Tence, C. Mory, C. Colliex, H. Kato, T. Okazaki, H. Shinohara, K. Hirahara, S. Bandow and S. Iijima, , “Element-selective single atom imaging”, Science, 290 (2000), pp.2880-2882. [6] S. Iijima and T. Ichihashi, “Single-shell carbon nanotubes of 1-nm diameter”, Nature, 363 (1993), pp.603-605. [7] D. S. Bethune, C. H. Klang, M. S.de Vries, G. Gorman, R. Savoy, J. Vazquez and R. Beyers, “Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls”, Nature, 363 (1993), pp.605-607. [8] S. Banerjee and I. K. Puri, Enhancement in hydrogen storage in carbon nanotubes under modified conditions”, Nanotechnology, 19 (2008), pp.155702. [9] A. C. Dillon, K. M. Jones, T. A. Bekkedahl, C. H. Klang, D. S. Bethune and M. J. Heben, “Storage of hydrogen in single–walled carbon nanotubes”, Nature, 386 (1997) pp.377-379. [10] 朱宏佛, 吳德海, 徐才錄,”碳納米管”, 北京:機械工業出版社, 2003 [11] H. Dai, “Carbon nanotubes: opportunities and challenges”, Science, 500 (2002), pp.218-241. [12] S. Iijima, “Growth of carbon nanotubes”, Materials Science and Engineering B, 19 (1993), pp.172-180. [13] M. Endo and H. W. Kroto, “Formation of carbon nanofibers”, Journal of Physical Chemistry , 96 (1992), pp.6941-6944. [14] M. Ishigami, J. Cumings, A. Zettl and S. Chen, “A simple method for the continuous production of carbon nanotubes”, Chemical Physics Letters, 319 (2000), pp.457–459. [15] Y. Liu, X. Song , T. Zhao, J. Zhu, M. Hirscher and F.Philipp, “Amorphous carbon nanotubes produced by a temperature controlled DC arc discharge”, Carbon, 42 (2004), pp.1852–1855. [16] J. Qiu, Y. Li, Y. Wang, T. Wang, Z. Zhao Y. Zhou , F. Li and H. Cheng, ” High-purity single-wall carbon nanotubes synthesized from coal by arc discharge”, Carbon 41 (2003), pp.2170-2173. [17] R. Brukh and S. Mitra, “Mechanism of carbon nanotube growth by CVD”, Chemical Physics Letters, 424 (2006), pp.126–132. [18] V. I. Merkulov, D. H. Lowndes, Y. Y. Wei, and G. Eres, “Patterned growth of individual and multiple vertically aligned carbon nanofibers”, Applied Physics Letters, 76 ( 2000), pp.3555-3557. [19] N. Zhao, C. He, J. Li, Z. Jiang and Y. Li, “Study on purification and tip-opening of CNTs fabricated by CVD”, Materials Research Bulletin, 41 (2006), pp. 2204–2209. [20] Z.Y. Juang, J.F. Lai, C.H. Weng, J.H. Lee, H.J. Lai, T.S. Lai, C.H. Tsai, “On the kinetics of carbon nanotube growth by thermal CVD method”, Diamond & Related Materials, 13 (2004), pp.2140– 2146. [21] A. Thess, R. Lee, P. Nikolaev, H. Dai, P. Petit, J. Robert, C. Xu, Y. H. Lee, S. G. Kim, A. G. Rinzler, D. T. Colbert, G. E. Scuseria, D. Tomanek, J. E. Fischer and R. E. Smalley, “Crystalline ropes of metallic carbon nanotubes”, Science, 273 (1996), pp.483-487. [22] T. Guo, P. Nikolaev,A. G. Rinzler, D. Tomanek, D. T. Colbert and R. E. Smalley, “Self-assembly of tubular fullerenes”, Journal of Physical Chemistry, , 99(1995), pp. 10694-10697. [23] M. Yudasaka, R. Yamada, N. Sensui, T. Wilkins, T. Ichihashi and S. Iijima, “Mechanism of the effect of NiCo, Ni and Co catalysts on the yield of Single-wall carbon nanotubes formed by pulsed Nd:YAG laser ablation”, Journal of Physical Chemistry B , 103 (1999), pp. 6224-6229. [24] H. Takikawa, M. Ikeda, K. Hirahara, Y. Hibi, Y. Tao, P.A. Ruiz Jr., T. Sakakibara, S. Itohc and S. Iijima, “Fabrication of single-walled carbon nanotubes and nanohorns by means of a torch arc in open air”, Physica B, 323 (2002), pp.277–279. [25] H. H. Kim and H. J. Kim, “Preparation of carbon nanotubes by DC arc discharge process under reduced pressure in an air atmosphere”, Materials Science and Engineering B, 133 (2006), pp. 241–244. [26] N. Parkansky, R. L. Boxman, B. Alterkop, I. Zontag, Y. Lereah and Z. Barkay, “Single-pulse arc production of carbon nanotubes in ambient air”, Journal of Physics D, 37 (2004), pp.2715–2719. [27] Z. Chen, Y. Wei, C. Luo, K. Jiang, L. Zhang, Q. Li, and S. Fan, “Laser direct writing carbon nanotube arrays on transparent substrates”, Applied Physics Letters, 90 (2007), pp.133108 [28] R. B. Mathur, C. Lal and D. K. Sharma, “Catalyst-free carbon nanotubes from coal-based material”, Energy Sources, Part A, 29 (2007), pp.21–27. [29] J. Hahn, S. B. Heo, J. S. Suh, ” Catalyst free synthesis of high-purity carbon nanotubes by thermal plasma jet”, Carbon, 43 (2005), pp.2618–2641. [30] T. Uchino, K. N. Bourdakos, C. H. de Groot, P. Ashburn, M. E. Kiziroglou, G. D. Dilliway, and D. C. Smith, “Metal catalyst-free low-temperature carbon nanotube growth on SiGe islands”, Applied Physics Letters, 86 (2005) , pp.233110. [31] Y. Saito and Y. Tani, “Diameter of single-wall carbon nanotubes depending on helium gas pressure in an arc discharge”, Journal of Physical Chemistry B, 104 (2000), pp.2495-2499. [32] Y. Makita, S. Suzuki, H. Kataura and Y. Achiba, “Synthesis of single wall carbon nanotubes by using arc discharge in nitrogen atmosphere”, The European Physical Journal D, 34 (2005), pp.287-289. [33] S. Cui, P. Scharff, C. Siegmund, D. Schneider, K. Risch, S. Klotzer, L. Spiess, H. Romanus and J. Schawohl, “Investigation on preparation of multiwalled carbon nanotubes by DC arc discharge under N2 atmosphere”, Carbon, 42 (2004), pp.931–939. [34] S. Suzuki, H. Yamaguchi, T. Ishigaki, R. Sen, H. Katarua, W. Kratschmer, and Y. Achiba. “Time evolution of emission by carbon nanoparticles generated with a laser furnace technigue”, The Eurpean. Physical Journal D,16 (2001)pp.369-372. [35] H. Kataura, A. Kimura, Y. Ohtsuka, Sh. Suzuki, Y.Maniwa, T. Hanyu, Y. Achiba, “Formation of thin single-wall carbon nanotubes by laser vaporization of Rh/Pd-graphite composite rod”, Japanese Journal of Applied physics, Part 2: letters, 37 (1998), pp. 616-618. [36] C. Journet, W. K. Maser, P. Bernier, A. Loiseau, M. Lamy de la Chapelle, S. Lefrant, P. Deniard, R. Lee and J. E. Fischer, “Large-scale production of single-walled carbon nanotubes by the electric-arc technique”, Nature, 388 (1997), pp.756-758 [37] Y. H. Lee, S. G. Kim and D. Tomanek, “Catalytic growth of single-wall carbon nanotubes”, Physical Review Letters, 78 (1997), pp2393-2396. [38] Y. K. Kwon, Y. H. Lee, S. G. Kim, P. Jund, David Tománek, and R. E. Smalley, “Morphology and stability of growing multiwall carbon nanotubes”, Physical Review Letters, 79 (1997), pp.2065-2068. [39] Y. Y. Tsai, C. H. Tseng, C. K. Chang, “Development of a combined machining method using electrorheological fluids for EDM”, Journal of Materials Processing Technology, 201 (2008), pp.565–569. [40] D. Y. Sheu, “Micro-spherical probes machining by EDM”, Journal of Micromechanics and Microengineering, 15 (2005), pp.185–189. [41] D. Y. Sheu, “Multi-spherical probe machining by EDM combining WEDG technology with one-pulse electro-discharge”, Journal of Materials Processing Technology, 149 (2004), pp.597–603. [42] 董光雄 著, “放電加工”, 復文書局, (1989) [43] 郭正次, 朝春光 著,”奈米結構材料科學”, 全華出版社, (2004) [44] D. H. Kuo, M. Y. Su and W. R. Chen, “Fast rate growth of organized carbon nanotubes by CVD using iron pentacarbonyl as gas-phase catalyst”, Chemical Vapor Deposition, 12 (2006), pp 395-402. [45] T. W. Ebbesen, “Carbon nanotubes”, CRC press, Boca Raton (1997) | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43546 | - |
dc.description.abstract | 隨著奈米碳管應用的方式與目的不同,使得碳管在多元的應用上被賦予相當多的期待,目前最常製備奈米碳管的方法,分別是:電弧法、化學氣相沉積法與雷射蒸發法。然而在生成上需配合高電流、真空腔、特殊氣體、催化劑與長的反應時間來營造出碳管生成氣氛,使得奈米碳管的製程條件複雜與缺乏擇區生長的彈性。因此,本論文提出一種新的奈米碳管製程技術,將藉由微放電加工的方式,期待符合奈米碳管多元應用之需求,另一方面可擴展微放電加工技術至奈米碳管製程產業中。
本研究創新提出以放電加工的方法,在大氣下生成奈米碳管,更特別的是本製程並不需高電流與催化劑來營造生成氣氛。在研究中,自行製作了一套單脈衝放電迴路與機構,並以放電電流與放電幅寬為製程的主要參數。由奈米碳管生成的形貌與趨勢,歸納出本製程技術之奈米碳管生成參數範圍,成功的生成多壁與尖狀的奈米碳管。研究結果顯示,製程中提供過大的電流量與放電幅寬時,雖然可產生較多的碳源,但電極尖端的消耗亦隨之增加,而引發電弧的不穩定,使得放電坑內的碳濃度反而下降,而並未能有碳管長成。另一方面,當電流量與放電幅寬過小時,放電坑內卻又無足夠的碳源與持續的溫度場,給予成核點吸附碳源,同樣的亦無碳管的長成。這意味著碳管的生成與電流、放電幅寬有關,但並無比例的關係。由一次性單脈衝放電 Ip=4A,τ=1200μs的條件所製得的奈米碳管叢中發現,其碳管的頭型為尖型,這將有利於場發射電極的應用,其碳管的生長率更高達22.5mm/min。 綜觀上述本研究的製程與分析,我們已成功的在無催化劑、大氣下生及無操作腔體限制之環境下生成奈米碳管,藉由微放電的製程確實可為奈米碳管的生成提供更簡易、快速與可擇區的製程。 | zh_TW |
dc.description.abstract | The principal methods for producing CNTs have arc discharge method, chemical vapor deposition (CVD) method and laser ablation. Owing to the different applications of CNTs, many methods are created to meet this purpose. The application of CNTs in many fields is hopefully expected. In this research we will offer a new fabrication technology for CNTs by micro electro-discharge machining (MEDM). This method not only can comply with different applications of CNTs but also extend the MEDM method to the CNTs industry.
In contrast to the typical CNT preparation method, the current micro-electro discharge method can be used to prepare CNTs under atmospheric environment without the necessity of expensive vacuum system. In this study, a self-design micro electro discharge-system was used to prepare carbon nanotubes. The effect of processing parameters including the applied peak current and pulse duration were investigated. The results reveal that the carbon concentration in the hole is decreased while high current and widen arc width are used, so no CNTs can be obtained. On the other hand, insufficient carbon source and temperature field can provide the energy for CNT growth under low current and narrow arc with. Therefore, the current and arc width play important roles for the CNT growth but no proportional relationship between the parameters and production is observed. The CNTs with tape tip can be prepared under Ip=4A,τ=1200μs under single-pulse discharge, which is benefit for the field emission application. The growth rate is up to 22.5mm/min。 It is concluded that the CNTs can be produced by using MEDM even without any protection gas, cooling system, special preparation and cavity. Furthermore, using this simplified equipments and preparation process of MEDM, as another beneficial option, can be applied to producing CNTs in the near future. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T02:23:11Z (GMT). No. of bitstreams: 1 ntu-98-D93522041-1.pdf: 8666858 bytes, checksum: 1174a7794b6e300f0db4fd7858d2ed10 (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | 誌謝 I
中文摘要 II 英文摘要 III 目錄 V 表目錄 VIII 圖目錄 IX 符號說明 XIV 第一章 緒論 1 1.1 前言 1 1.2 奈米碳管的特性 3 1.3 奈米碳管生長機制概述 5 1.4 奈米碳管相關製程 6 1.4.1電弧法 6 1.4.2化學氣相沉積法 8 1.4.3雷射蒸發法 9 1.5 研究動機與目的 10 1.5 .1研究動機 10 1.5 .2研究目的與方法 11 1.6 本文架構 12 第二章 文獻回顧 14 2.1 前言 14 2.2 大氣下之奈米碳管製程相關研究 14 2.3 無催化劑之奈米碳管製程相關研究 19 2.4 其它影響奈米碳管製程之相關文獻 22 2.4.1氣體與壓力之影響 22 2.4.2催化劑之影響 24 2.5 單脈衝放電相關研究 25 2.6 文獻回顧小結 28 第三章 實驗方法及步驟 30 3.1實驗流程 30 3.2微放電機構設計 32 3.2.1機構配置 32 3.2.2單脈衝放電迴路設計 34 3.2.3放電參數 37 3.2奈米結構分析法 37 3.2.1掃描式電子顯微鏡 37 3.2.2穿透式電子顯微鏡 38 3.2.3奈米碳管場發射特性量測與分析 38 3.3實驗電極與試片準備 40 第四章 實驗結果與討論 46 4.1有催化劑之奈米碳管製程 46 4.1.1 SEM檢測分析 50 4.1.2 TEM檢測分析 65 4.1.3 場發射檢測分析 69 4.2無催化劑之奈米碳管製程 70 4.2.1 SEM檢測分析 72 4.2.2 TEM檢測分析 83 4.2.3 場發射檢測分析 86 4.2.4 放電坑與熱影響區分析 87 4.3 單脈衝放電對碳管成長機制探討 89 4.3.1 有催化劑之碳管成長機制探討 89 4.3.2 無催化劑之碳管成長機制探討 93 4.4 本章小結 96 第五章 結論與未來展望 99 5.1 結論 99 5.1.1碳管生成部分 99 5.1.2研究創新部分 100 5.2 未來研究方向與展望 101 參考文獻 102 | |
dc.language.iso | zh-TW | |
dc.title | 應用單脈衝放電生成奈米碳管之研究 | zh_TW |
dc.title | The Study on Growth of Carbon Nanotubes Using Single-pulse Discharge Method | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 邱源成,李騲登,林中魁,唐永新,楊申語,蔡曜陽 | |
dc.subject.keyword | 微放電加工,電流,放電幅寬,單脈衝放電, | zh_TW |
dc.subject.keyword | Micro electro-discharging machining,peak current,pulse duration,single pulse discharge, | en |
dc.relation.page | 105 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-08-18 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-98-1.pdf 目前未授權公開取用 | 8.46 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。