Formation of Carbon Nanotubes from Carbon-Rich Fly Ash: Growth Parameters and Mechanism
作者： Numan Salah , Attieh A. Al-ghamdi , Adnan Memic , Sami S. Habib , Zishan H. Khan
DOI: 10.1080/10426914.2015.1025975
关键词:
摘要: Fly ash is a by-product, generated due to the use of heavy oil or coal as fuel in power plants. Recently, carbon-rich fly found have ideal compositions catalyst and precursor for carbon nanotube (CNTs) growth by chemical vapor deposition method. The existing methods limitation on producing CNTs large scale. In this work, parameters effecting were investigated. These include temperature, gas pressure, time, flow rate. produced samples characterized different techniques. Consistent results are demonstrated terms CNT uniformity, conversion lengths under optimized values. optimum values provide multiwall with diameters 20–40 nm range. Raman spectrum shows G D bands (the G/D intensity ratio ∼1.4). as-grown displayed peaks sp2 sp3 carbons X-ray photoelectron spectroscopy an 7.5 eV. Two small also observed at 288.2 a...
sci-hub.se 参考文章(44)
Numan Abdullah Salah, Method of forming carbon nanotubes from carbon-rich fly ash ,(2011)
Rainer Haerle, Elisa Riedo, Alfredo Pasquarello, Alfonso Baldereschi, sp(2)/sp(3) hybridization ratio in amorphous carbon from C 1s core-level shifts: X-ray photoelectron spectroscopy and first-principles calculation Physical Review B. ,vol. 65, pp. 045101- ,(2001) , 10.1103/PHYSREVB.65.045101
S Cui, P Scharff, C Siegmund, D Schneider, K Risch, S Klötzer, L Spiess, H Romanus, J Schawohl, Investigation on preparation of multiwalled carbon nanotubes by DC arc discharge under N2 atmosphere Carbon. ,vol. 42, pp. 931- 939 ,(2004) , 10.1016/J.CARBON.2003.12.060
Aurore Morançais, Brigitte Caussat, Yolande Kihn, Philippe Kalck, Dominique Plee, Patrice Gaillard, Daniel Bernard, Philippe Serp, A parametric study of the large scale production of multi-walled carbon nanotubes by fluidized bed catalytic chemical vapor deposition Carbon. ,vol. 45, pp. 624- 635 ,(2007) , 10.1016/J.CARBON.2006.10.009
A.G. Osorio, C.P. Bergmann, Effect of surface area of substrates aiming the optimization of carbon nanotube production from ferrocene Applied Surface Science. ,vol. 264, pp. 794- 800 ,(2013) , 10.1016/J.APSUSC.2012.10.134
Cathie Vix-Guterl, Michel Couzi, Joseph Dentzer, Michel Trinquecoste, Pierre Delhaes, Surface Characterizations of Carbon Multiwall Nanotubes: Comparison between Surface Active Sites and Raman Spectroscopy Journal of Physical Chemistry B. ,vol. 108, pp. 19361- 19367 ,(2004) , 10.1021/JP047237S
Jianfeng Zhang, Rong Tu, Takashi Goto, None, Preparation of carbon nanotube by rotary CVD on Ni nano-particle precipitated cBN using nickelocene as a precursor Materials Letters. ,vol. 65, pp. 367- 370 ,(2011) , 10.1016/J.MATLET.2010.09.074
Theodoros Tsoufis, Panagiotis Xidas, Lubos Jankovic, Dimitrios Gournis, Athanasia Saranti, Thomas Bakas, Michael A. Karakassides, Catalytic production of carbon nanotubes over Fe-Ni bimetallic catalysts supported on MgO Diamond and Related Materials. ,vol. 16, pp. 155- 160 ,(2007) , 10.1016/J.DIAMOND.2006.04.014
Hyeon Hwan Kim, Hyeong Joon Kim, Preparation of carbon nanotubes by DC arc discharge process under reduced pressure in an air atmosphere Materials Science and Engineering B-advanced Functional Solid-state Materials. ,vol. 133, pp. 241- 244 ,(2006) , 10.1016/J.MSEB.2006.06.017
Seong-Il Kim, Byeong-kwon Ju, Kyongsoo Lee, Jin-Woo Lee, Single-walled carbon nanotube/Nafion composites as methanol sensors Carbon. ,vol. 49, pp. 787- 792 ,(2011) , 10.1016/J.CARBON.2010.10.013