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題名 | Continuous Production of Carbon Nanotubes and Carbon Fibers with Methane, Nitrogen, and Fe(CO)忦 Using a CVD Vertical Reactor=使用甲烷、氮氣及Fe(CO)忦之垂立式化學氣相沉積反應器製備奈米碳管及碳纖維 |
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作者 | 林志誠; 黃建銘; 郭建生; 李元堯; 胡啟章; 陳建忠; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 35:6 2004.11[民93.11] |
頁次 | 頁595-601 |
分類號 | 460.02 |
關鍵詞 | 連續式量產; 化學氣相沉積法; 奈米碳管; CVD; Carbon nanotube; Continuous production; |
語文 | 英文(English) |
中文摘要 | 本文主要是使用連續流動觸煤-垂直式氣相沉積反應器來合成奈米碳管,並探討反應溫度、壓力及進料的組成對生成奈米碳管產率和品質的影響。 進料反應氣體主要有三種成分:(1) 氮氣 (carrier gas)、(2) 觸煤 (Fe(CO)5)、(3) 碳氫化合物 (CH4),當N2流速為1000 sccm、甲烷流速為250 sccm、觸媒流速為0.5 mL/h在反應溫度1100°C及常壓狀態下進行反應,在此最適流量比例下所得的奈米碳管的最高產量為3.5 g/h,純度大約為30%,此製程提供一個經濟、安全的製造過程並不需要基材情況下合成奈米碳管,因此,以直立式高溫爐較適合用於連續式量產奈米碳管。 |
英文摘要 | Caron nanotubes were synthesized using a CVD floating feed method with a vertical reactor. The effect of the reaction temperature, pressure, and compositions of the feedings on the production rate and quality of the carbon nanotubes are discussed. The feed mixtures included the following components: (1) nitrogen as a carrier gas; (2) Fe(CO)5 as a catalyst; and (3) methane as a source of carbon. Under limited operational conditions, a maximum yield of carbon products of 3.5 g/h with CNT purity of approximately 30% could be achieved by feeding 250 sccm methane, 1000 sccm nitrogen, and Fe(CO)5 at 0.5 mL/h and 1100°C, with 1 atm. The results suggest that CNTs can be fabricated using the CVD method in the absence of substrate, and that this approach is cost-efficient and safer in terms of the operational environment with nitrogen used as a carrier gas. Moreover, the vertical reactor can be scaled up for continuous mass production carbon nanotubes. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。