为降低碳纳米管批量制备的原料成本,以焦化苯和二茂铁为主要原料(工业级),采用浮游催化热解法制备碳纳米管,用TEM、SEM、Raman、XRD等对产物的形貌和结构进行观察和表征,着重讨论了二茂铁的分解温度和苯的挥发温度对碳纳米管的制备及其形貌的影响,并对其影响机理进行了分析.研究表明:在噻吩体积分数为0.55 mL/100 mL苯、炉膛反应温度为1170 ℃的前提下,当二茂铁的分解温度为150 ℃、苯的挥发温度为50℃时,用工业级原料完全可以制备出碳纳米管,此时,碳纳米管的内径分布在0.88～1.15 nm.
参考文献
| [1] | IIJIMA S .Helical microtubules of graphitic carbon[J].Nature,1991,354:56-58. |
| [2] | Tibbetts Gary G.;Baligh Micheal P. .Increase in yield of carbon fibres growth above the iron/carbon eutectic[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(2):241-247. |
| [3] | TIBBETTS G G;BERNARDO C A;GORKEWCOZ D W et al.Role of sulfur in the production of carbon fibers in the vapor phase[J].CARBON,1994,32(04):569-576. |
| [4] | MOTOJIMA S;HASEGAWA I;KAGIGA S et al.Reparation of coiled carbon fibers by pyrolysis of acetylene using a Ni catalyst and sulfur or phosophorus compound impurity[J].Applied Physics Letters,1993,62:2322-2325. |
| [5] | KIM M S;RODRIGUEZ N M;BAKER R T K .The interplay between sulfur adsorption and carbon deposition on cobalt catalyst[J].Journal of Catalysis,1993,143:449-463. |
| [6] | DAI H;WONG E W;LU Y Z et al.Synthesis and characterization of carbide nanorods[J].Nature,1995,375:769-772. |
| [7] | RAO A M;RICHTER E;BANDOW S et al.Diameter selective Raman scattering from vibrational modes in carbon nanotubes[J].Science,1997,275(5297):187-191. |
| [8] | Jorio A.;Hafner JH.;Lieber CM.;Hunter M.;McClure T. Dresselhaus G.;Dresselhaus MS.;Saito R. .Structural (n, m) determination of isolated single-wall carbon nanotubes by resonant Raman scattering[J].Physical review letters,2001(6):1118-1121. |
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