Nitrogen Dilution Effect on Flame Synthesis of Carbon Nanostructures with Acoustic Modulation

2011 ◽  
Vol 115 (33) ◽  
pp. 16287-16294 ◽  
Author(s):  
De-Hua Chung ◽  
Ta-Hui Lin
2006 ◽  
Vol 41 (5) ◽  
pp. 406-417 ◽  
Author(s):  
Shigeo Kondo ◽  
Kenji Takizawa ◽  
Akifumi Takahashi ◽  
Kazuaki Tokuhashi

2011 ◽  
Vol 14 (1) ◽  
pp. 19 ◽  
Author(s):  
Z.A. Mansurov ◽  
M. Nazhipkyzy ◽  
B.T. Lesbayev ◽  
N.G. Prikhodko ◽  
M. Auyelkhankyzy ◽  
...  

We synthesize and deposit carbon nanostructures through flame synthesis on silicon and nickel wafers at different nonpremixed flame locations to produce hydrophobic surfaces. The hydrophobicity is characterized through the contact angle for water droplets placed on the surface. The surface morphology of the nanoparticles is obtained from SEM images. The morphology and hydrohobicity of the nanostructured surfaces depends upon the deposition, which differs at various flame locations. We determine the optimum flame location for the synthesis and deposition of surface carbon nanostructures that lead to maximum hydrophobicity.


Author(s):  
Sonal Mazumder ◽  
Suvojit Ghosh ◽  
Joseph O. Falkinham ◽  
Ishwar K. Puri

Carbon nanostructures were synthesized and deposited through flame synthesis on stainless steel grids and foils, and on bare and ferrofluid-painted silicon wafers at different nonpremixed flame locations to produce hydrophobic surfaces. The hydrophobicity is characterized through the contact angle for water droplets placed on the surface. The surface morphology of the nanoparticles is obtained from high-resolution FESEM images. Following synthesis and deposition the adherence, activity, and stability of bacterial cells, antibodies, and enzymes on the carbon nanostructures can be studied.


Materials ◽  
2016 ◽  
Vol 9 (11) ◽  
pp. 939 ◽  
Author(s):  
Wei-Chieh Hu ◽  
Shanti Sari ◽  
Shuhn-Shyurng Hou ◽  
Ta-Hui Lin

2014 ◽  
Vol 35 (4) ◽  
pp. 43-54
Author(s):  
Nadjib Ghiti

Abstract The dynamic process of the interaction between a turbulent jet diffusion methane flame and a lateral wall was experimentally studied. The evolution of the flame temperature field with the Nitrogen dilution of the methane jet flame was examined. The interaction between the diffusion flame and the lateral wall was investigated for different distance between the wall and the central axes of the jet flame. The dilution is found to play the central role in the flame extinction process. The flame response as the lateral wall approaches from infinity and the increasing of the dilution rate make the flame extinction more rapid than the flame without dilution, when the nitrogen dilution rate increase the flame temperature decrease.


2011 ◽  
Vol 196 (14) ◽  
pp. 5829-5834 ◽  
Author(s):  
Jennifer L. Lamp ◽  
Jeremy S. Guest ◽  
Sayangdev Naha ◽  
Katherine A. Radavich ◽  
Nancy G. Love ◽  
...  

2011 ◽  
Vol 6 (1) ◽  
pp. 331 ◽  
Author(s):  
Hongmei Zhu ◽  
Tongchun Kuang ◽  
Bin Zhu ◽  
Shumei Lei ◽  
Zongwen Liu ◽  
...  

Fuel ◽  
2010 ◽  
Vol 89 (7) ◽  
pp. 1492-1498 ◽  
Author(s):  
Jeongseog Oh ◽  
Qasim Sarwar Khan ◽  
Youngbin Yoon

Author(s):  
Claudya P. Arana ◽  
Ishwar K. Puri ◽  
Swarnendu Sen

Since prepared substrates offer an appropriate method for the selective production of uniform arrays of aligned CNTs and CNFs, it is important to illustrate the influence of different catalysts on the resulting nanostructures. This investigation characterizes the activity of three catalysts — iron in alloyed form as stainless steel, nickel, and platinum — on carbon nanostructure formation under identical conditions in an ethylene/air nonpremixed flame. We have synthesized well-aligned multi-walled CNTs (on Ni) and CNFs (on stainless steel). The third transition metal Pt produces CNF structures of a different kind and its activity has not been previously characterized in flames. The catalyst and gas-phase conditions leading to the formation of these different structures are discussed.


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