Template synthesis of boron nitride nanotubes over iron impregnated mesoporous silica MCM-41 by chemical vapor deposition technique
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Saner Okan, Burcu and Kocabaş, Özlem Züleyha and Nalbant Ergün, Aslı and Yürüm, Yuda (2011) Template synthesis of boron nitride nanotubes over iron impregnated mesoporous silica MCM-41 by chemical vapor deposition technique. In: 17th International Symposium on Boron, Borides and Related Materials (ISBB 2011), Istanbul, Turkey
BN nanotubes were successfully grown over iron impregnated MCM-41 at a
relatively low temperature of 750oC for 1 hour by CVD technique.
BN nanotubes were obtained after the purification procedure including HCl and HNO3 treatments to remove impurities.
SEM image showed the formation of nano-fibrous network BN structures in the diameter range of 20 nm to 40 nm.
Both XRD and FTIR characterization results supported the formation of h-BN and c-BN nanostructures.
Oxidative TGA results indicated that the synthesized BN nanostructures were thermally stable at temperatures higher than 550oC.
Hydrogen storage measurements via IGA showed that BNNTs could adsorb 0.85 wt% hydrogen which was two times larger than for commercial CNTs.
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