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Detailed Program
Paper Number : ST-O03
Time Frame : 16:30~16:50
Presentation Date : Thurseday, 27, November
Session Name : Structural Ceramics
Session Chair 1# : Hai-Doo Kim
Session Chair 2# : Junich tatami
Carbon Nanotubes Grown on Cobalt Supported Zeolite-Porous Ceramics
Jung Gyu PARK
Hanseo University
Macro porous ceramics are useful in the industrial sphere due to its large surface area with interconnected pores. Also, carbon nanotubes(CNTs) can dramatically increase surface area. With those benefits composite as a nano filter. But normally on porous ceramics CNTs cannot be grown on their surface. In this study, we synthesized CNTs on porous ceramics using ion-exchanged zeolite coating process. Here, we have used cobalt ion for the ion exchange process. Substrate of CNTs consists of inorganic particles (for example Al2O3 and SiO2) were synthesized by direct foaming method using short chain carboxylic amphiphiles such as propyl gallate, with average solid content of 30vol%, average pore size 100~150um. The CNTs were grown by catalytic chemical vapor deposition (CCVD) method. Field Emission Scanning Electron Microscope (FE-SEM) and Transparent Electron Microscope (TEM) images for investigate synthesized CNTs morphology, microstructure and surface. Also CNTs were investigated for characterization by Raman spectroscopic analysis and TGA/DTA study. To compare surface area, BET analysis was done.


Figure 1 Schematic diagram of CNTs grown on Co-supported zeolite-porous ceramics

References:

[1] W. Zhao, B. Basnet and I. J. Kim, Journal of Advanced Ceramics 1(3) (2004) p. 179.
[2] A. Srivastava, O.N. Srivastava, S. Talapatra, R. Vajtai and P. M. Ajayan, Nature (2004) p. 610.
[3] A. Pokhrel, J. G. Park, J. S. Nam, D. S. Cheong, and I. J. Kim, Journal of the Korean Ceramic Society 48(5) (2011) p. 463.
[4] A. Pokhrel, J. G. Park, G. H. Jho, J. Y. Kim and I. J. Kim, Journal of Korean Ceramics Society 48(6) (2011) p.600
Acknowledgements : I would like to thank Prof. Dr. Ik Jin Kim for his kind cooperation and continuous follow-up towards my work. Also, I would like to thank Hanseo University for providing a suitable laboratory for the work.