High-Quality Double-Walled Carbon Nanotubes Produced by Catalytic Decomposition of Benzene
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- 作者：Seung Chul Lyu ; Bao Chun Liu ; Cheol Jin Lee ; Hee Kwang Kang ; Cheol-Woong Yang ; and Chong Yun Park
- 刊名：Chemistry of Materials
- 出版年：2003
- 出版时间：October 7, 2003
- 年：2003
- 卷：15
- 期：20
- 页码：3951 - 3954
- 全文大小：379K
- 年卷期：v.15,no.20(October 7, 2003)
- ISSN：1520-5002
文摘
High-quality double-walled carbon nanotubes (DWNTs) have been produced by catalyticdecomposition of benzene over Fe-Mo/Al2O3 catalyst at 900 
C. The produced carbonmaterials are DWNT bundles free of amorphous carbon covering on the surface. DWNTshave inner tube diameters in the range of 0.69-2.53 nm and outer tube diameters in therange of 1.44-3.30 nm. The interlayer spacing between graphene layers ranges from 0.35to 0.38 nm. Transmission electron microscopy and Raman analysis show that produced carbonmaterials have a low defect level in the atomic carbon structure, indicating the synthesis ofhigh-quality DWNTs. Our results demonstrate that benzene is an ideal carbon feedstock tosynthesize high-purity DWNTs over Fe-Mo/Al2O3 catalyst.
C. The produced carbonmaterials are DWNT bundles free of amorphous carbon covering on the surface. DWNTshave inner tube diameters in the range of 0.69-2.53 nm and outer tube diameters in therange of 1.44-3.30 nm. The interlayer spacing between graphene layers ranges from 0.35to 0.38 nm. Transmission electron microscopy and Raman analysis show that produced carbonmaterials have a low defect level in the atomic carbon structure, indicating the synthesis ofhigh-quality DWNTs. Our results demonstrate that benzene is an ideal carbon feedstock tosynthesize high-purity DWNTs over Fe-Mo/Al2O3 catalyst.