Synthesis of C-CNTs and investigaton on the effect of temperature on product characteristics

Abstract: 148 | PDF: 159

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Author

  • Nguu Le Duc
    Master's student K40, Chemical Engineering, The University of Danang - University of Science and Technology
    Lam Nguyen Dinh, Tri Truong Huu
    The University of Danang - University of Science and Technology

Keywords:

C-CNTs
CVD
SEM
TEM
BET
TGA
Carbon felt

Abstract

In this study, the authors synthesized carbon nanotubes on the surface of carbon felt (C-CNTs) by Chemical vapor decomposition method in the direct heating system with ethanol as a carbon source. At the synthesis temperature of 725°C, the yield and BET surface area values of the product were 44 wt.% and 74 m2/g, respectively. The thermal stability of the material was lower than that of the prototype. The investigation on the effect of temperature on characteristics of samples showed that when the reaction temperature increased from 676oC to 784oC, the yield increased linearly from 21.61 wt.% to 66 wt.%. Meanwhile, the specific surface area of C-CNTs increased with increasing temperature to 725oC and did not have much change at higher synthesis temperature. However, the BET value of CNTs peaked at 725oC and then dropped sharply. SEM images showed that, the size of CNTs is more uniform when increasing the synthesis temperature, but the density of material formation tended to decrease.

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Published

Mar 31, 2022
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How to Cite
Lê Đức Ngưu, and Nguyễn Đình Lâm, Trương Hữu Trì. “Synthesis of C-CNTs and Investigaton on the Effect of Temperature on Product Characteristics”. The University of Danang - Journal of Science and Technology, vol. 20, no. 3, Mar. 2022, pp. 18-22, https://jst-ud.vn/jst-ud/article/view/7799.

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