Tri-Metallic Catalyst for Mass Production of Quasi-Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition

Yan Bin Cui; Shuang Lin Zhan; Xiao Feng Wu; Guo Zhuo Gong; Ya Jun Tian; Yun Fa Chen

doi:10.4028/www.scientific.net/KEM.368-372.1507

Paper Titles

Sterilization of E. Coli by Fe-Doped TiO₂ Modified Photocatalytic Paint under Visible Light Irradiation
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Nanoporous TiO₂/SiO₂ Composite Prepared by a Combined Sol-Gel and Hybrid Method
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Preparation and Photocatalytic Property of WO₃-TiO₂ /Ti Ceramic Film via Anodic Oxidation Treatment
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A Series of Bi-Based Oxychlorides as Efficient Photocatalysts
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Tri-Metallic Catalyst for Mass Production of Quasi-Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition
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Self-Organized Zirconia Nanotube Arrays Prepared by Anodization
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Preparation and Characterization of Macroporous Pumice-Porcelain Composite Foams
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Preparation of Molybdates with Antibacterial Property
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Preparation and Bactericidal Properties of Nano-SiO₂ Grafted with Macromolecular Quaternary Ammonium Salts Derivative of Alkylated Polyethylenimines
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Tri-Metallic Catalyst for Mass Production of Quasi-Aligned Carbon Nanotubes by Thermal Chemical Vapor Deposition

Abstract:

In this paper, mass production of quasi-aligned CNTs was achieved with a new tri-metallic catalyst (Fe-Ni-Mo/MgO) by thermal CVD method, using methane as carbon precursor. The growth process was in-situ monitored by thermal gravimetry/differential scanning calorimetry (TG-DSC) technique, and the yield of CNTs over 2200% was attained under the mixture atmosphere of CH4 and H2 with flow rate about 25 ml/min and 5 ml/min respectively at 900°C for 30 min. The as-prepared products were characterized. Raman spectrums showed that the CNTs are multi-wall structure. The diameter of the CNTs was estimated to be 20-30 nm. We think the synergism of FeNi3 alloy and Mo is the main reason for the high catalytic activity of tri-metallic catalyst.