Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature
Carbon nanocoils and/or microcoils were synthesized using C2H2 as the source gas along with the injection of SF6 as an incorporated additive gas under the thermal chemical vapor deposition (TCVD) system. To control the geometries of the carbon coils, we varied the SF6 flow injection time at differen...
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Series: | Journal of Nanomaterials |
Online Access: | http://dx.doi.org/10.1155/2018/7859747 |
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doaj-fc317c5f1a234c35a52c7c75c33add512020-11-24T20:45:27ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292018-01-01201810.1155/2018/78597477859747Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction TemperatureDong-Chul Kim0Sung-Hoon Kim1Department of Engineering in Energy & Applied Chemistry, Silla University, Busan 617-736, Republic of KoreaDepartment of Engineering in Energy & Applied Chemistry, Silla University, Busan 617-736, Republic of KoreaCarbon nanocoils and/or microcoils were synthesized using C2H2 as the source gas along with the injection of SF6 as an incorporated additive gas under the thermal chemical vapor deposition (TCVD) system. To control the geometries of the carbon coils, we varied the SF6 flow injection time at different reaction temperature ranges. At the lowest reaction temperature (550°C), carbon microcoils were dominantly formed within a relatively short initial SF6 flow injection time (less than 5 min). By increasing the SF6 flow injection time, carbon nanocoils could be well developed on the entire surface of the sample. At 750°C, the formation of carbon microcoils dominated over the entire sample surface, irrespective of the SF6 flow injection time. Based on these results, the growth mechanism for the dominantly formed carbon coils was suggested and discussed. In addition, the causes for the dominant formation of carbon nanocoils and/or microcoils according to the SF6 flow injection times with the different reaction temperatures were analyzed.http://dx.doi.org/10.1155/2018/7859747 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dong-Chul Kim Sung-Hoon Kim |
spellingShingle |
Dong-Chul Kim Sung-Hoon Kim Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature Journal of Nanomaterials |
author_facet |
Dong-Chul Kim Sung-Hoon Kim |
author_sort |
Dong-Chul Kim |
title |
Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature |
title_short |
Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature |
title_full |
Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature |
title_fullStr |
Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature |
title_full_unstemmed |
Geometry-Controlled Carbon Coils by SF6 Flow Injection Time with Reaction Temperature |
title_sort |
geometry-controlled carbon coils by sf6 flow injection time with reaction temperature |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2018-01-01 |
description |
Carbon nanocoils and/or microcoils were synthesized using C2H2 as the source gas along with the injection of SF6 as an incorporated additive gas under the thermal chemical vapor deposition (TCVD) system. To control the geometries of the carbon coils, we varied the SF6 flow injection time at different reaction temperature ranges. At the lowest reaction temperature (550°C), carbon microcoils were dominantly formed within a relatively short initial SF6 flow injection time (less than 5 min). By increasing the SF6 flow injection time, carbon nanocoils could be well developed on the entire surface of the sample. At 750°C, the formation of carbon microcoils dominated over the entire sample surface, irrespective of the SF6 flow injection time. Based on these results, the growth mechanism for the dominantly formed carbon coils was suggested and discussed. In addition, the causes for the dominant formation of carbon nanocoils and/or microcoils according to the SF6 flow injection times with the different reaction temperatures were analyzed. |
url |
http://dx.doi.org/10.1155/2018/7859747 |
work_keys_str_mv |
AT dongchulkim geometrycontrolledcarboncoilsbysf6flowinjectiontimewithreactiontemperature AT sunghoonkim geometrycontrolledcarboncoilsbysf6flowinjectiontimewithreactiontemperature |
_version_ |
1716814735607857152 |