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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 李慧梅(Whei-May Lee) | |
dc.contributor.author | Xian-Yau Tzeng | en |
dc.contributor.author | 曾顯堯 | zh_TW |
dc.date.accessioned | 2021-05-15T17:51:24Z | - |
dc.date.available | 2017-03-14 | |
dc.date.available | 2021-05-15T17:51:24Z | - |
dc.date.copyright | 2014-08-21 | |
dc.date.issued | 2014 | |
dc.date.submitted | 2014-08-17 | |
dc.identifier.citation | 1. An, J. N., Z. Y. Zhan, S. V. H. Krishna and L. X. Zheng. 2014. Growth condition mediated catalyst effects on the density and length of horizontally aligned single-walled carbon nanotube arrays. Chemical Engineering Journal 237: 16-22.
2. Bellucci, S. 2005. Carbon nanotubes: physics and applications. physica status solidi (c) 2(1): 34-47. 3. Britto, P. J., K. S. V. Santhanam, A. Rubio, J. A. Alonso and P. M. Ajayan. 1999. Improved charge transfer at carbon nanotube electrodes. Advanced Materials 11(2): 154-157. 4. Challenger, O., J. Braven, D. Harwood, K. Rosen and G. Richardson. 1996. Indoor air quality. Negative air ionisation and the generation of hydrogen peroxide. Science of the Total Environment 177: 215-219. 5. Crespi, V. H. 1998. Relations between global and local topology in multiple nanotube junctions. Physical Review B 58(19): 12671-12671. 6. Daniels, S. L. 2002. 'On the ionization of air for removal of noxious effluvia' (Air ionization of indoor environments for control of volatile and particulate contaminants with nonthermal plasmas generated by dielectric-barrier discharge). Ieee Transactions on Plasma Science 30(4): 1471-1481. 7. Fletcher, L. A., L. F. Gaunt, C. B. Beggs, S. J. Shepherd, P. A. Sleigh, C. J. Noakes and K. G. Kerr. 2007. Bactericidal action of positive and negative ions in air. Bmc Microbiology 7: 9. 8. Gardiner, P. S. and J. D. Craggs. 1977. Negative-ions in trichel corona in air. Journal of Physics D-Applied Physics 10(7): 1003-1009. 9. Grabarczyk, Z. 2001. Effectiveness of indoor air cleaning with corona ionizers. Journal of Electrostatics 51: 278-283. 10. Gravendeel, B. and F. J. Dehoog. 1987. Clustered negative-ions in atmospheric negative corona discharges in the trichel regime. Journal of Physics B-Atomic Molecular and Optical Physics 20(23): 6337-6361. 11. Iijima, S. 1991. Helical microtubules of graphitic carbon. Nature 354(6348): 56-58. 12. Ionescu, M. I., Y. Zhang, R. Y. Li, H. Abou-Rachid and X. L. Sun. 2012. Nitrogen-doping effects on the growth, structure and electrical performance of carbon nanotubes obtained by spray pyrolysis method. Applied Surface Science 258(10): 4563-4568. 13. Iwama, H., H. Ohmizo, S. Furuta, S. Ohmori, K. Watanabe, T. Kaneko and K. Tsutsumi. 2002. Inspired superoxide anions attenuate blood lactate concentrations in postoperative patients. Critical Care Medicine 30(6): 1246-1249. 14. Kayastha, V. K., B. Ulmen and Y. K. Yap. 2007. Effect of graphitic order on field emission stability of carbon nanotubes. Nanotechnology 18(3). 15. Kim, Y. C., J. W. Nam, M. I. Hwang, I. H. Kim, C. S. Lee, Y. C. Choi, J. H. Park, H. S. Kim and J. M. Kim. 2008. Uniform and stable field emission from printed carbon nanotubes through oxygen trimming. Applied Physics Letters 92(26): 3. 16. Klepeis, N. E., W. C. Nelson, W. R. Ott, J. P. Robinson, A. M. Tsang, P. Switzer, J. V. Behar, S. C. Hern and W. H. Engelmann. 2001. The National Human Activity Pattern Survey (NHAPS): a resource for assessing exposure to environmental pollutants. Journal of Exposure Analysis and Environmental Epidemiology 11(3): 231-252. 17. Kondrashova, M. N., E. V. Grigorenko, A. N. Tikhonov, T. V. Sirota, A. V. Temnov, I. G. Stavrovskaja, N. I. Kosyakova, N. V. Lange and V. P. Tikhonov. 2000. The primary physico-chemical mechanism for the beneficial biological/medical effects of negative air ions. Ieee Transactions on Plasma Science 28(1): 230-237. 18. Krueger, A. P. and E. J. Reed. 1976. Biological impact of small air ions. Science 193(4259): 1209-1213. 19. Lee, B. U., M. Yermakov and S. A. Grinshpun. 2004. Removal of fine and ultrafine particles from indoor air environments by the unipolar ion emission. Atmospheric Environment 38(29): 4815-4823. 20. Lighthart, B. and A. J. Mohr (1994). Atmospheric Microbial Aerosols: Theory and Applications, Chapman & Hall. 21. Maldonado, S., S. Morin and K. J. Stevenson. 2006. Structure, composition, and chemical reactivity of carbon nanotubes by selective nitrogen doping. Carbon 44(8): 1429-1437. 22. Mayya, Y. S., B. K. Sapra, A. Khan and F. Sunny. 2004. Aerosol removal by unipolar ionization in indoor environments. Journal of Aerosol Science 35(8): 923-941. 23. Mendis, D. A., M. Rosenberg and F. Azam. 2000. A note on the possible electrostatic disruption of bacteria. Ieee Transactions on Plasma Science 28(4): 1304-1306. 24. Nagato, K., Y. Matsui, T. Miyata and T. Yamauchi. 2006. An analysis of the evolution of negative ions produced by a corona ionizer in air. International Journal of Mass Spectrometry 248(3): 142-147. 25. Nakane, H., O. Asami, Y. Yamada and H. Ohira. 2002. Effect of negative air ions on computer operation, anxiety and salivary chromogranin A-like immunoreactivity. International Journal of Psychophysiology 46(1): 85-89. 26. Park, B. S. and S. M. Kang. 2011. Spatial distribution of negative air ions produced by an ultrasonic mist maker. Journal of the Korean Physical Society 58(6): 1618-1621. 27. Pontiga, F., C. Soria and A. Castellanos. 1997. Electrical and chemical model of negative corona in oxygen at atmospheric pressure. Journal of Electrostatics 40-1: 115-120. 28. Popov, V. N. 2004. Carbon nanotubes: properties and application. Materials Science & Engineering R-Reports 43(3): 61-102. 29. Richardson, G., S. A. Eick, D. J. Harwood, K. G. Rosen and F. Dobbs. 2003. Negative air ionisation and the production of hydrogen peroxide. Atmospheric Environment 37(26): 3701-3706. 30. Ross, S. K. and A. J. Bell. 2002. Reverse flow continuous corona discharge ionisation applied to ion mobility spectrometry. International Journal of Mass Spectrometry 218(2): L1-L6. 31. Sabo, M., J. Matuska and S. Matejcik. 2011. Specific O-2(-) generation in corona discharge for ion mobility spectrometry. Talanta 85(1): 400-405. 32. Sabo, M., Y. Okuyama, M. Kucera and S. Matejcik. 2013. Transport and stability of negative ions generated by negative corona discharge in air studied using ion mobility-oaTOF spectrometry. International Journal of Mass Spectrometry 334: 19-26. 33. Sawant, V. S., G. S. Meena and D. B. Jadhav. 2012. Effect of negative air ions on fog and smoke. Aerosol and Air Quality Research 12(5): 1007-1015. 34. Sekimoto, K. and M. Takayama. 2007. Influence of needle voltage on the formation of negative core ions using atmospheric pressure corona discharge in air. International Journal of Mass Spectrometry 261(1): 38-44. 35. Sekimoto, K. and M. Takayama. 2011. Observations of different core water cluster ions Y-(H2O)(n) (Y = O-2, HOx, NOx, COx) and magic number in atmospheric pressure negative corona discharge mass spectrometry. Journal of Mass Spectrometry 46(1): 50-60. 36. Sen, R., B. C. Satishkumar, A. Govindaraj, K. R. Harikumar, G. Raina, J. P. Zhang, A. K. Cheetham and C. N. R. Rao. 1998. B-C-N, C-N and B-N nanotubes produced by the pyrolysis of precursor molecules over Co catalysts. Chemical Physics Letters 287(5-6): 671-676. 37. Skalny, J. D., T. Mikoviny, S. Matejcik and N. J. Mason. 2004. An analysis of mass spectrometric study of negative ions extracted from negative corona discharge in air. International Journal of Mass Spectrometry 233(1-3): 317-324. 38. Sveningsson, M., R. E. Morjan, O. A. Nerushev, E. E. B. Campbell, D. Malsch and J. A. Schaefer. 2004. Highly efficient electron field emission from decorated multiwalled carbon nanotube films. Applied Physics Letters 85(19): 4487-4489. 39. Tikhonov, V. P., A. A. Temnov, V. A. Kushnir, T. V. Sirota, E. G. Litvinova, M. V. Zakharchenko and M. N. Kondrashova. 2004. Complex therapeutical effect of ionized air: Stimulation of the immune system and decrease in excessive serotonin. H2O2 as a link between the two counterparts. Ieee Transactions on Plasma Science 32(4): 1661-1667. 40. Tyagi, A. K. and A. Malik. 2010. Antimicrobial action of essential oil vapours and negative air ions against Pseudomonas fluorescens. International Journal of Food Microbiology 143(3): 205-210. 41. Tyagi, A. K., B. K. Nirala, A. Malik and K. Singh. 2008. The effect of negative air ion exposure on Escherichia coli and Pseudomonas fluorescens. Journal of Environmental Science and Health Part a-Toxic/Hazardous Substances & Environmental Engineering 43(7): 694-699. 42. Wei, G. 2006. Emission property of carbon nanotube with defects. Applied Physics Letters 89(14): 3. 43. Wu, C. C., G. W. M. Lee, S. Yang, K. P. Yu and C. L. Lou. 2006. Influence of air humidity and the distance from the source on negative air ion concentration in indoor air. Science of the Total Environment 370(1): 245-253. 44. Yamada, R., S. Yanoma, M. Akaike, A. Tsuburaya, Y. Sugimasa, S. Takemiya, H. Motohashi, Y. Rino, Y. Takanashi and T. Imada. 2006. Water-generated negative air ions activate NK cell and inhibit carcinogenesis in mice. Cancer Letters 239(2): 190-197. 45. Yellampalli, S. (2011). Carbon Nanotubes: Synthesis, Characterization and Applications, InTech, Chapters published. 46. Yu, K. P. 2012. Enhancement of the deposition of ultrafine secondary organic aerosols by the negative air ion and the effect of relative humidity. Journal of the Air & Waste Management Association 62(11): 1296-1304. 47. 王丞浩、杜鶴芸、林麗瓊、陳貴賢。 2009. 奈米碳管直接成長在氣體擴散層作爲電極觸媒基材. 化工 56(5): 76-86. 48. 成會明 2004. 奈米碳管 Carbon Nanotubes. 五南圖書出版股份有限公司。 49. 吳致呈。 2006。 空氣負離子控制室內空氣污染物之研究。博士論文。台北:臺灣大學。 50. 林瑾杰。2012。 奈米碳管重量對放電產生空氣負離子影響之研究。碩士論文。 台北:臺灣大學。 51. 徐孟琮。2008。 奈米碳管特性對放電產生空氣負離子影響之研究。碩士論文。 台北:臺灣大學。 52. 廖弓普。2007。 奈米碳管放電產生空氣負離子微型裝置之研究。碩士論文。台北:臺灣大學. 53. 盧宣任 (2009). 奈米碳管場發射特性對放電產生空氣負離子影響之研究, 臺灣大學。 54. 蕭儀禎 (2012). 壁面貼附材料與空氣負離子對室內生物氣膠控制效率的影響, 臺灣大學。 55. 顏麗凰。2004。 利用水滴破碎產生空氣負離子之研究。碩士論文。台北:臺灣大學。 56. 蘇銘傳。2004。 直接成長奈米碳管在碳布上作為甲醇燃料電池電極之研究。台北:台灣科技大學。 57. 行政院農委會林務局。2008。農林航空測量所。台北:行政院農委會林務局。網址:http://www.afasi.gov.tw/ct.asp?xItem=28016&ctNode=232&mp=390。上網日期:2008-04-23。 58. 教育部。數位教學資源入口網-台灣地區臭氧觀測。台北:教育部。網址:http://content.edu.tw/senior/earth/tp_ml/ozone1/Html/web/taiwan%20%20ozene.htm。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/5057 | - |
dc.description.abstract | 本研究目的在於製作攜帶型空氣負離子產生器,產生空氣負離子的方法選用電暈放電法,為方便攜帶必須降低產生空氣負離子所需要的電壓,同時要考量產生空氣負離子之數量與其穩定性。本研究嘗試透過更換不同的電極以降低產生空氣負離子所需電壓,實驗選用奈米碳管直接生長於碳布上做為放電電極,奈米碳管直接生長於碳布上相較於將奈米碳管黏著於基材上有較低的電阻,且奈米碳管較不容易脫落導致產生空氣負離子效果降低。為了避免產生之副產物臭氧過多對人體造成危害,實驗最後亦會監控臭氧之濃度。本實驗之奈米碳管選用六種不同的條件,分別為有無摻雜氮元素、生長時間分別為5分鐘、10分鐘、15分鐘,在相對濕度0%、20%、40%、60%、80%下測量起始電壓、放電穩定性、負離子穩定濃度等性質。
實驗結果顯示摻雜氮的奈米碳管較無摻雜氮的奈米碳管較容易產生叢聚的現象。無摻雜氮的奈米碳管生長時間為5分鐘、10分鐘、15分鐘時的起始電壓分別為2.3kV、1.93kV、2.06kV;氮摻雜的奈米碳管生長時間為5分鐘、10分鐘、15分鐘時的起始電壓分別為3.23 kV、1.86 kV、2.33 kV,生長時間為5分鐘與15分鐘下無摻雜氮的碳管有較低的起始電壓,生長時間為10分鐘時則是氮摻雜的碳管有較低的起始電壓。在相對濕度為0%、20%、40%、60%、80%下測量六種不同的碳管,得到的起始電壓平均值分別為2.22±0.43kV、1.67±0.38kV、1.63±0.38kV、1.63±0.36kV、1.67±0.37kV,顯示在20%~60%有較低的起始電壓。在中間濕度40%、2.5kV下進行穩定放電測試,無摻雜氮的奈米碳管生長時間為5分鐘、10分鐘、15分鐘變異係數分別為5.50%、64.98%、10.75%,氮摻雜的奈米碳管生長時間為5分鐘、10分鐘、15分鐘變異係數分別為20.78%、63.26%、8.84%,顯示生長5分鐘與15分鐘有較好的穩定性。穩定性較高的四個電極:摻雜氮奈米碳管生長時間5分鐘、15分鐘與無摻雜氮奈米碳管摻雜氮奈米碳管生長時間5分鐘、15分鐘,並從其中選出負離子穩定濃度高於200×103ions/cm3、起始電壓最低的電極-無摻雜氮生長15分鐘的奈米碳管,進行放電距離、濕度與負離子濃度之關係,結果顯示距離越遠偵測到的空氣負離子濃度越低。且在2.5kV下連續放電30分鐘,每五分鐘偵測到的臭氧濃度分別為1.5ppb、2.1ppb、0.8ppb、1.8ppb、2.4ppb、1.6ppb,低於空氣品質表準法中的0.06ppm,過程中產生的臭氧並不足以危害人體健康。 無摻雜氮生長15分鐘的奈米碳管起始電壓在1.9~2.0kV,在2.5kV下連續放電的變異係數為10.75%、平均濃度約773×103ions/cm3,為本研究最適合產生空氣負離子之奈米碳管,與林(2009)研究中將奈米碳管沾附於鐵基材上比較,奈米碳管沾附與鐵基材能有較低的起始電壓(0.5kV),但連續放電不到3分鐘負離子濃度會迅速的衰減至開啟的10%,因此在長期使用考量下本研究之碳管能有較好的產生負離子效果。 | zh_TW |
dc.description.abstract | The purpose of this study is to produce a portable negative air ion (NAI) generator. NAI generated by corona discharge. In order to be portable, voltage which produces air ions needed should be reduced. This study attempts to replace the different electrode to reduce the voltage required to produce NAI. In this study chose carbon nanotubes directly (CNTs) grown on carbon cloth as the discharge electrode. It has lower resistance than the CNTs stick to the substrate. In this study, CNT have six terms, they are doped nitrogen (CNT-N) or not (CNT), growing time that is 5min, 10min, 15min. In this study measures starting voltage, stability of discharging and steady concentration of NAI in RH=0%, 20%, 40%, 60%, 80%,.
The result of experiment reveal CNT-N is easier gathering than CNT. Growing time of CNT in 5min, 10min, 15min that their starting voltage is 2.3kV、1.93kV、2.06kV; Growing time of CNT-N in 5min, 10min, 15min that their starting voltage is 3.23 kV、1.86 kV、2.33 kV. It revels CNT have lower staring voltage in 5min and 15min. CNT-N in 10min have lower starting voltage. Measuring six different CNTs in relative humidity is 0%, 20%, 40%, 60%, 80%, the average value of starting voltage is 2.22±0.43kV、1.67±0.38kV、1.63±0.38kV、1.63±0.36kV、1.67±0.37kV, showing in 20%~60% has lower starting voltage. Testing in stability with humidity 40% and 2.5kV, growing time of CNTs-blank in 5min, 10min, 15min their coefficient of variation is 5.50%、64.98%、10.75%, growing time of CNT-N 5min, 10min, 15min their coefficient of variation is 20.78%、63.26%、8.84%, they reveal growing in 5min and 15min have better stability. Four electrode with higher stability : growing time of CNTs-N in 5min, 15min and growing time of CNTs-blank in 5min, 15min. Chose the steady concentration of NAI is higher than 200×103ions/cm3 and growing time of CNT in 15min (CNT-15) which starting voltage is the lowest electrode as the best electrode. Observing the relation of distance, humidity and concentration of NAI which generated by CNT-15. The result reveal when the longer distance between detector and generator the lower concentration of NAI. And continuous discharging electricity in 30 min, detecting concentration of ozone is 1.5ppb、2.1ppb、0.8ppb、1.8ppb、2.4ppb、1.6ppb, lower 0.06ppm in air quality law, in the course, producing ozone is not enough to endanger human body. Starting voltage of CNT-15 between 1.9~2.0kV. Coefficient of variation is 10.75%, average of concentration of NAI is around 773×103ions/cm3 , while CNT-15 discharge at -2.5kV and R.H.=40%. CNT 15 is most suitable CNTs to producing NAI in this study. Compare CNT-15 with research of 林(2009) stick carbon nanotubes on iron substrate (Fe-CNT), Fe-CNT has lower starting voltage(0.5kV). Fe-CNT can produce NAI only for 3 min. Consider the produce time of NAI, CNT-15 is better than Fe-CNT. | en |
dc.description.provenance | Made available in DSpace on 2021-05-15T17:51:24Z (GMT). No. of bitstreams: 1 ntu-103-R01541118-1.pdf: 3044330 bytes, checksum: 0a3a03c7193ce1be1db28eb2c701c056 (MD5) Previous issue date: 2014 | en |
dc.description.tableofcontents | 謝致 I
摘要 III Abstract V 目錄 VII 圖目錄 X 表目錄 XIII 符號說明 XIV 第一章 前言 1 1.1 研究緣起 1 1.2 研究目的 2 1.3 研究內容與方法 2 第二章 文獻回顧 5 2.1 空氣負離子 5 2.1.1 空氣負離子之產生 6 2.1.2 空氣負離子產生影響因子 6 2.1.3 空氣負離子對人體健康之影響 12 2.1.4 空氣負離子對室內空氣品質之影響 15 2.2 奈米碳管 17 2.2.1 奈米碳管的結構 17 2.2.2 奈米碳管基本特性 20 2.2.3 奈米碳管電磁特性、場發射性質 22 2.2.4 奈米碳管的摻雜與改質 23 2.2.5 奈米碳管製備-化學氣相沉積法 24 2.2.6 以奈米碳管產生空氣負離子 27 第三章 實驗設備與方法 29 3.1 實驗流程 29 3.2 實驗設備與系統 33 3.2.1 空氣負離子產生系統 33 3.2.2 監測系統 35 3.3 實驗方法 36 3.3.1 奈米碳管放電電極製備 36 3.3.2 起始電壓、負離子濃度計算 37 3.3.3 碳布奈米碳管特性 39 3.3.4 碳布奈米碳管放電產生臭氧與空氣負離子穩定性 39 第四章 結果與討論 41 4.1 背景濃度 41 4.1.1 以自來水產生濕度 41 4.1.2 以去離子水產生濕度 42 4.2 不同種類奈米碳管特性 45 4.2.1 無摻雜氮之奈米碳管 45 4.2.2 氮摻雜之奈米碳管 45 4.3 乾燥空氣下起始電壓 48 4.3.1 無摻雜氮奈米碳管生長時間與起始電壓關係 48 4.3.2 氮摻雜奈米碳管生長時間與起始電壓關係 53 4.4 濕度對起始電壓之影響 58 4.4.1 不同生長時間無摻雜氮奈米碳管之濕度與起始電壓關係 61 4.4.2 不同生長時間摻雜氮奈米碳管之濕度與起始電壓關係 64 4.5 碳管種類、濕度對空氣負濃度影響之探討 67 4.5.1 不同條件的碳管產生空氣負離子穩定度探討 67 4.5.2 固定電壓下不同濕度產生負離子與臭氧 73 4.6 放電距離與濃度關係之探討 74 第五章 結論與建議 79 5.1 結論 79 5.2 建議 81 參考文獻 83 附錄-口試委員意見 91 | |
dc.language.iso | zh-TW | |
dc.title | 以奈米碳管直接生長於基材產空氣負離子之研究 | zh_TW |
dc.title | Generation Negative Air Ions by Carbon Nanotube Directly Grown on Carbon Cloth by Chemical Vapor Deposition | en |
dc.type | Thesis | |
dc.date.schoolyear | 102-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 林麗瓊(Li-Chyong Lin),曾昭衡(Chao-heng Tseng),羅金翔(Ching-Hsian Luo) | |
dc.subject.keyword | 空氣負離子,電暈放電,化學氣象沉積,碳布,奈米碳管, | zh_TW |
dc.subject.keyword | Negative air ion,Corona discharge,CVD,carbon cloth: carbon nanotube, | en |
dc.relation.page | 93 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2014-08-17 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 環境工程學研究所 | zh_TW |
顯示於系所單位: | 環境工程學研究所 |
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ntu-103-1.pdf | 2.97 MB | Adobe PDF | 檢視/開啟 |
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