Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow

Wei Chieh Hu, Shuhn Shyurng Hou, Ta Hui Lin

Research output: Contribution to conferencePaper

Abstract

Carbon nanotubes were synthesized by ethanol diffusion flames in a stagnation-point liquid-pool system. In the stagnation-point flow field, both of the oxygen concentration and exit velocity strongly influenced the flame characteristics. Oxygen concentration and exit velocity dominated the formation of soot layer, extinction and position of the flame. Carbon nanotubes were synthesized at 25% and 15% oxygen concentrations when deposition time was 30 s. The temperatures at the corresponding sampling positions of 25% and 15% O 2 were 1350°C and 430°C, respectively. A wide temperature range suitable for the synthesis of CNTs was found. However, SEM images showed great differences in morphologies and yields of synthesized products.

Original languageEnglish
Publication statusPublished - 2013 Jan 1
Event9th Asia-Pacific Conference on Combustion, ASPACC 2013 - Gyeongju, Korea, Republic of
Duration: 2013 May 192013 May 22

Other

Other9th Asia-Pacific Conference on Combustion, ASPACC 2013
CountryKorea, Republic of
CityGyeongju
Period13-05-1913-05-22

Fingerprint

Combustion synthesis
Liquid fuels
Nanostructures
Carbon
Oxygen
Carbon nanotubes
Soot
Flow fields
Ethanol
Sampling
Temperature
Scanning electron microscopy
Liquids

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

Cite this

Hu, W. C., Hou, S. S., & Lin, T. H. (2013). Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow. Paper presented at 9th Asia-Pacific Conference on Combustion, ASPACC 2013, Gyeongju, Korea, Republic of.
Hu, Wei Chieh ; Hou, Shuhn Shyurng ; Lin, Ta Hui. / Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow. Paper presented at 9th Asia-Pacific Conference on Combustion, ASPACC 2013, Gyeongju, Korea, Republic of.
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Hu, WC, Hou, SS & Lin, TH 2013, 'Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow', Paper presented at 9th Asia-Pacific Conference on Combustion, ASPACC 2013, Gyeongju, Korea, Republic of, 13-05-19 - 13-05-22.

Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow. / Hu, Wei Chieh; Hou, Shuhn Shyurng; Lin, Ta Hui.

2013. Paper presented at 9th Asia-Pacific Conference on Combustion, ASPACC 2013, Gyeongju, Korea, Republic of.

Research output: Contribution to conferencePaper

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T1 - Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow

AU - Hu, Wei Chieh

AU - Hou, Shuhn Shyurng

AU - Lin, Ta Hui

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Y1 - 2013/1/1

N2 - Carbon nanotubes were synthesized by ethanol diffusion flames in a stagnation-point liquid-pool system. In the stagnation-point flow field, both of the oxygen concentration and exit velocity strongly influenced the flame characteristics. Oxygen concentration and exit velocity dominated the formation of soot layer, extinction and position of the flame. Carbon nanotubes were synthesized at 25% and 15% oxygen concentrations when deposition time was 30 s. The temperatures at the corresponding sampling positions of 25% and 15% O 2 were 1350°C and 430°C, respectively. A wide temperature range suitable for the synthesis of CNTs was found. However, SEM images showed great differences in morphologies and yields of synthesized products.

AB - Carbon nanotubes were synthesized by ethanol diffusion flames in a stagnation-point liquid-pool system. In the stagnation-point flow field, both of the oxygen concentration and exit velocity strongly influenced the flame characteristics. Oxygen concentration and exit velocity dominated the formation of soot layer, extinction and position of the flame. Carbon nanotubes were synthesized at 25% and 15% oxygen concentrations when deposition time was 30 s. The temperatures at the corresponding sampling positions of 25% and 15% O 2 were 1350°C and 430°C, respectively. A wide temperature range suitable for the synthesis of CNTs was found. However, SEM images showed great differences in morphologies and yields of synthesized products.

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Hu WC, Hou SS, Lin TH. Combustion synthesis of carbon nanostructures by liquid-fuel flames in a stagnation-point flow. 2013. Paper presented at 9th Asia-Pacific Conference on Combustion, ASPACC 2013, Gyeongju, Korea, Republic of.