TY - JOUR
T1 - Montmorillonite-carbon nanotube nanofillers by acetylene decomposition using catalytic CVD
AU - Manikandan, Dhanagopal
AU - Mangalaraja, Ramalinga Viswanathan
AU - Avila, Ricardo E.
AU - Siddheswaran, Rajendran
AU - Anathakumar, Solaiappan
N1 - Funding Information:
The authors would like to thank FONDECYT Postdoctorado project no. 3100010 and FONDECYT no. 1100349 , Government of Chile, Santiago for the financial support to carry out this work. The authors would also like to thank Direction of Investigation for the support.
PY - 2013/1
Y1 - 2013/1
N2 - Montmorillonite-carbon nanotube nanofillers (a binary hybrid material) were successfully synthesised for polymer reinforcing applications. Montmorillonite (Mt) supported iron oxide (20 and 25. wt.%) catalysts were prepared using the conventional wet impregnation method and calcined at 450. °C. In situ reduction of the catalysts and synthesis of CNT was carried out in a horizontal furnace at 750. °C using acetylene along with nitrogen and hydrogen. The influence of gas composition on the carbon nanotube growth characteristics of montmorillonite supported iron oxide catalysts was studied. Growth experiments with two different gas compositions containing 5 and 8. vol.% of acetylene were used to evaluate the effect of the concentration of acetylene gas on the yield, morphology and purity of the carbon nanotubes over each catalyst. Highly selective, crystalline and defect free carbon nanotubes were obtained at low acetylene concentration in the total gas flow.
AB - Montmorillonite-carbon nanotube nanofillers (a binary hybrid material) were successfully synthesised for polymer reinforcing applications. Montmorillonite (Mt) supported iron oxide (20 and 25. wt.%) catalysts were prepared using the conventional wet impregnation method and calcined at 450. °C. In situ reduction of the catalysts and synthesis of CNT was carried out in a horizontal furnace at 750. °C using acetylene along with nitrogen and hydrogen. The influence of gas composition on the carbon nanotube growth characteristics of montmorillonite supported iron oxide catalysts was studied. Growth experiments with two different gas compositions containing 5 and 8. vol.% of acetylene were used to evaluate the effect of the concentration of acetylene gas on the yield, morphology and purity of the carbon nanotubes over each catalyst. Highly selective, crystalline and defect free carbon nanotubes were obtained at low acetylene concentration in the total gas flow.
KW - Acetylene
KW - Carbon nanotubes
KW - Gas composition
KW - Montmorillonite
UR - http://www.scopus.com/inward/record.url?scp=84870693539&partnerID=8YFLogxK
U2 - 10.1016/j.clay.2012.10.001
DO - 10.1016/j.clay.2012.10.001
M3 - Article
AN - SCOPUS:84870693539
SN - 0169-1317
VL - 71
SP - 37
EP - 41
JO - Applied Clay Science
JF - Applied Clay Science
ER -