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題 名 | 海膽狀奈米碳材製備及其性質之研究=Preparation and Properties of Sea Urchin-like Carbons Using Thermal Chemical Evaporation |
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作 者 | 廖坤厚; 林正直; 莊誌銘; | 書刊名 | 航空技術學院學報 |
卷 期 | 10:1 2011.08[民100.08] |
頁 次 | 頁1-5 |
分類號 | 440.34 |
關鍵詞 | 海膽狀奈米碳材; 奈米碳纖維; 熱化學氣相沉積法; 中孔洞碳材; Sea urchin-like carbons; Carbon nanofibers; Thermal chemical vapor deposition; Mesoporous carbons; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究利用熱化學氣相沉積法(thermal chemical vapor deposition)成長一維奈米碳材(奈米碳管與奈米碳纖維),其中奈米碳纖維(carbon nanofibers)於中孔洞碳材 (mesoporous carbons)上製備海膽狀奈米碳材(sea urchin-like carbons) 以改善其導電性;首先將硝酸鐵水溶液以熱迴流方式將成長奈米碳纖維之催化劑擔載於中孔碳上,再以甲烷為碳源於 800℃及 900℃下反應生成奈米碳纖維;奈米碳纖維的成長讓中孔碳間有良好的接觸,由於奈米碳纖維優異的導電性,成功的降低中孔碳之電阻值將近 30%。 |
英文摘要 | One-dimensional nanocarbons, including carbon nanotubes and nanofibers (CNFs), were grown on catalyst-seeded mesoporous carbons using thermal chemical vapor deposition. The catalyst was applied to the mesoporous carbons by a dip coating process followed by a high temperature reduction. The growth of carbon nanotubes/nanofibers (sea urchin-like carbons) then took place through the thermal decomposition of methane at temperatures of 800 degrees C or 900 degrees C. Carbon nanotubes/nanofibers grown on mesoporous carbon particles provide interconnects among the particles. Intimate contacts between the CNTs/CNWs and the mesoporous carbons were also observed. Due to these interconnects and the intimate contacts, the electrical resistance mesoporous carbons having carbon nanotubes/nanofibers is approximately 30% lower than that of mesoporous carbons. |
本系統中英文摘要資訊取自各篇刊載內容。