Harmonized processing of biomorphic materials for the synthesis of carbon nanotubes
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
A three-step process was carried out to form carbon nanotubes (CNTs) on a biomorphic carbon template (BCT). First, naturalwood with 20-µm pores was transformed into a carbon template via carbonization pyrolysis. Thereafter, LTA zeolite crystalswere synthesized to have a crystal size of 0.3 µm, and an in situ hydrothermal process was used to coat the BCT with a single,homogeneous zeolite layer. Finally, CNTs were synthesized on the zeolite-coated biomorphic carbon template (ZCBCT) viacatalytic chemical vapor deposition (CCVD) with acetylene (C2H2) as a carbon source. In this study, we focused on varyingthe reaction time and temperature to improve the CNT yield and assess the morphology, crystallinity, and yield percentageof the CNTs. Multi-walled CNTs with an inner diameter of 10.7 nm were synthesized at 650 oC, and a maximum CNT yieldof 7.09% was obtained at 180 min.
Abstract
A three-step process was carried out to form carbon nanotubes (CNTs) on a biomorphic carbon template (BCT). First, naturalwood with 20-µm pores was transformed into a carbon template via carbonization pyrolysis. Thereafter, LTA zeolite crystalswere synthesized to have a crystal size of 0.3 µm, and an in situ hydrothermal process was used to coat the BCT with a single,homogeneous zeolite layer. Finally, CNTs were synthesized on the zeolite-coated biomorphic carbon template (ZCBCT) viacatalytic chemical vapor deposition (CCVD) with acetylene (C2H2) as a carbon source. In this study, we focused on varyingthe reaction time and temperature to improve the CNT yield and assess the morphology, crystallinity, and yield percentageof the CNTs. Multi-walled CNTs with an inner diameter of 10.7 nm were synthesized at 650 oC, and a maximum CNT yieldof 7.09% was obtained at 180 min.
참고문헌 (22)
- S. Ijima, , Nature, 354, pp.56~58 (1991)
- B.K. Kashik, "Carbon Nanotube Based VLSI Interconnects", pp.17~ (2015), Springer
- M. Han, "Carbon Nanotubes Applications on Electron Devices", pp.299~ (2011), InTech
- P. Laborde-Lahoz, , Mech. Adv. Mater. Struct, 12(1), pp.13~19 (2005)
- R. Alshehri, , J. Med. Chem, 59(18), pp.8149~8167 (2015)
- E. Frackowiak, , Carbon, 40(10), pp.1775~1787 (2002)
- A. Shrivastava, , Nature, 3, pp.610~614 (2004)
- M.V. Antisari, , Carbon, 41(12), pp.2393~2401 (2003)
- J. Chrzanowska, , Phys. Status Solidi B, 252(8), pp.1860~1867 (2015)
- K. Koziol, "Carbon and Oxide Nanostructure", pp.23~ (2010), Springer
- A. Magrez, , Materials, 3(11), pp.4871~4891 (2010)
- W. Zhao, , J. Adv. Ceram, 1(3), pp.179~193 (2012)
- Wei Zhao, "Synthesis and growth of multi-walled carbon nanotubes (MWNTs) by CCVD using Fe-supported zeolite templates", Journal of Ceramic Processing Research, 12(4), pp.392~397 (2011), 세라믹공정연구센터
- W. Zhao, , J. Nanomaterials, 2014, pp.1~5 (2014)
- S. Mazumder, , Mater. Lett, 161, pp.212~215 (2015)
- F. Zheng, , Nano Lett, 2(7), pp.729~732 (2002)
- I.J. Kim, , J. Photocatalysis Sci, 2(1), pp.19~28 (2011)
- Young Mi Kim, "Synthesis and Morphological Transformation of NaA Zeolite Crystals at High Temperature", 한국세라믹학회지, 43(1), pp.1~1 (2006), 한국세라믹학회
- K. Mukhopadhyay, , Jpn. J. Appl. Phys, 37(10B), pp.1257~1259 (1998)
- K. Mukhopadhyay, , Chem. Phys. Lett, 303, pp.117~124 (1999)
- P. Gao, , Ceram. Intl, 34(8), pp.1975~1981 (2008)
- A.E. Galetti, , Mater. Res, 18(6), pp.1278~1283 (2015)