HIGH-YIELD PRODUCTION OF MULTI-WALLED CARBON NANOTUBES BY CATALYTIC DECOMPOSITION OF BENZENE VAPOR
Wang Xi-zhang (王喜章)a, Hu Zheng (胡征)ab, Wu Qiang (吴强)a, Chen Yi (陈懿)a
a Laboratory of Mesoscopic Materials and Chemistry, Department of Chemistry, Nanjing University, Nanjing 210093, China; bNational Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
Abstract Multi-walled carbon nanotubes (CNTs) have been synthesized on $\gamma$-Al2O3 supported unitary, binary or trinity metal (Fe, Co, Ni) catalysts with benzene as carbon source in the range of 600 to 810 ℃. The growth of CNTs was carried out in a fixed bed flow reactor and the quality of carbon deposits was characterized by transmission electron microscopy. The preparation was optimized and the high-yield production of CNTs has been achieved for three mixture catalysts with the yield of high-quality CNTs higher than 200% within 60 min, reaching a maximum of 278% for 1.51 mmol/g Fe-1.51 mmol/g Co/$\gamma$-Al2O3 catalyst. This provides a good alternative for future large scale and low cost production of CNTs for applications.
Received: 26 February 2001
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 59871020), by "973" progran (Grant No. G1999064508) and by Visiting Scholar Foundation of Key Laboratory in University.
Cite this article:
Wang Xi-zhang (王喜章), Hu Zheng (胡征), Wu Qiang (吴强), Chen Yi (陈懿) HIGH-YIELD PRODUCTION OF MULTI-WALLED CARBON NANOTUBES BY CATALYTIC DECOMPOSITION OF BENZENE VAPOR 2001 Chinese Physics 10 76
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