Growth and Microstructure of Submicro-Scaled Graphitic Flakes on Carbon Fibers by Catalytic Chemical Vapor Deposition

2013 ◽  
Vol 275-277 ◽  
pp. 1746-1750
Author(s):  
Hai Zhang ◽  
Ling Jun Guo ◽  
Yang Xi Fu ◽  
He Jun Li ◽  
Ke Zhi Li

Submicro-scaled graphite flakes with uniform distribution on the surface of carbon fiber were grown in situ by catalytic chemical vapor deposition with natural gas as feedstock. Morphology and structure parameter of graphite flakes were characterized by scanning electron microscope and Raman spectroscopy respectively. The results show that graphite flakes with assistance of iron hydroxide aqueous collosol had better shape, higher density and graphitization degree compared with specimen prepared with ferric chloride solution. The size in plane of as grown graphite flakes is in the range of 1-3 μm. Microcrystal domain size of graphite flakes is calculated about 5 nm according to ration of intensity of D band to G band in Raman spectra.

2012 ◽  
Vol 430-432 ◽  
pp. 1269-1272
Author(s):  
Xian Feng Xu ◽  
Yan Yan Hu ◽  
Peng Xiao

In order to improve surface characteristics of carbon fibers, using nickel granules as catalysts, nano carbon with different morphologies was deposited in-situ on the surface of carbon fibers by the method of Chemical Vapor Deposition (CVD). The observations by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) indicated that keeping the excellent performance of plating nickels catalyst and a suitable deposition rate of Pyrogenation Carbon (PyC) are the key factors for getting Carbon Nanotube and Carbon Nanofiber (CNT/CNF). In this experiment, the optimum operation conditions are: plating time at 5min, deposition temperature at 1173K, deposition time at 2 hours, flow of C3H6, H2 and N2 at 30, 200 and 400ml/min respectively, deposition pressure at 700-1000Pa. Evolution rules of nano carbon are explained in growth mechanism of Catalytic Chemical Vapor Deposition (CCVD).


2017 ◽  
Vol 5 (16) ◽  
pp. 4068-4074 ◽  
Author(s):  
Xinliang Li ◽  
Xiaowei Yin ◽  
Meikang Han ◽  
Changqing Song ◽  
Hailong Xu ◽  
...  

Ti3C2TxMXenes modified within situgrown carbon nanotubes (CNTs) are fabricatedviaa simple catalytic chemical vapor deposition (CVD) process.


2011 ◽  
Vol 17 (S2) ◽  
pp. 1520-1521
Author(s):  
R Sharma

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.


2019 ◽  
Vol 9 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Sivamaran Venkatesan ◽  
Balasubramanian Visvalingam ◽  
Gopalakrishnan Mannathusamy ◽  
Viswabaskaran Viswanathan ◽  
A. Gourav Rao

2018 ◽  
Vol 26 (4) ◽  
pp. 3643-3650 ◽  
Author(s):  
Kobra Rahbar Shamskar ◽  
Alimorad Rashidi ◽  
Parviz Aberoomand Azar ◽  
Mohammad Yousefi ◽  
Sahar Baniyaghoob

2009 ◽  
Vol 113 (26) ◽  
pp. 11239-11245 ◽  
Author(s):  
Valdirene G. de Resende ◽  
Xu Hui ◽  
Christophe Laurent ◽  
Alicia Weibel ◽  
Eddy De Grave ◽  
...  

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