Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods
A simple method to produce pure carbon nanosphere (CNS) in high yield using continuous chemical vapor deposition (CVD) technique (combination of floating catalyst CVD and fluidized bed CVD) is proposed. Carbon fiber substrate, acetylene precursor, and Fe catalyst are employed to produce CNS. X-ray d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor and Francis
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/43975/ http://psasir.upm.edu.my/id/eprint/43975/1/Bulk%20production%20of%20high-purity%20carbon%20nanosphere%20by%20combination%20of%20chemical%20vapor%20deposition%20methods.pdf |
| _version_ | 1848850373642551296 |
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| author | Yunus, Robiah Abdul Rashid, Suraya Ngee, Lim Hong Mohd Salleh, Mohamad Amran |
| author_facet | Yunus, Robiah Abdul Rashid, Suraya Ngee, Lim Hong Mohd Salleh, Mohamad Amran |
| author_sort | Yunus, Robiah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A simple method to produce pure carbon nanosphere (CNS) in high yield using continuous chemical vapor deposition (CVD) technique (combination of floating catalyst CVD and fluidized bed CVD) is proposed. Carbon fiber substrate, acetylene precursor, and Fe catalyst are employed to produce CNS. X-ray diffraction (XRD) and energy dispersive X-ray (EDX) spectrometry confirm the formation of a high percentage of hexagonal carbon. The scanning electron microscopy images reveal spheres that confirm uniform structures. Thermal gravimetric analysis implies that the CNS are free from the carbon fiber substrate as they start to decompose at a lower temperature compared to that of carbon fiber substrate. Under the optimal conditions of 700°C in ambient pressure at 60 min of reaction time and 300 mL/min of acetylene flow rate, CNS with an average diameter of less than 200 nm, 98% purity and yield of 3.07 mg/mg is obtained. |
| first_indexed | 2025-11-15T10:05:16Z |
| format | Article |
| id | upm-43975 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:05:16Z |
| publishDate | 2014 |
| publisher | Taylor and Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-439752021-12-01T08:15:17Z http://psasir.upm.edu.my/id/eprint/43975/ Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods Yunus, Robiah Abdul Rashid, Suraya Ngee, Lim Hong Mohd Salleh, Mohamad Amran A simple method to produce pure carbon nanosphere (CNS) in high yield using continuous chemical vapor deposition (CVD) technique (combination of floating catalyst CVD and fluidized bed CVD) is proposed. Carbon fiber substrate, acetylene precursor, and Fe catalyst are employed to produce CNS. X-ray diffraction (XRD) and energy dispersive X-ray (EDX) spectrometry confirm the formation of a high percentage of hexagonal carbon. The scanning electron microscopy images reveal spheres that confirm uniform structures. Thermal gravimetric analysis implies that the CNS are free from the carbon fiber substrate as they start to decompose at a lower temperature compared to that of carbon fiber substrate. Under the optimal conditions of 700°C in ambient pressure at 60 min of reaction time and 300 mL/min of acetylene flow rate, CNS with an average diameter of less than 200 nm, 98% purity and yield of 3.07 mg/mg is obtained. Taylor and Francis 2014 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/43975/1/Bulk%20production%20of%20high-purity%20carbon%20nanosphere%20by%20combination%20of%20chemical%20vapor%20deposition%20methods.pdf Yunus, Robiah and Abdul Rashid, Suraya and Ngee, Lim Hong and Mohd Salleh, Mohamad Amran (2014) Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods. Fullerenes, Nanotubes and Carbon Nanostructures, 23 (8). pp. 669-675. ISSN 1536-383X; ESSN: 1536-4046 https://www.tandfonline.com/doi/abs/10.1080/1536383X.2014.951439 10.1080/1536383X.2014.951439 |
| spellingShingle | Yunus, Robiah Abdul Rashid, Suraya Ngee, Lim Hong Mohd Salleh, Mohamad Amran Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title | Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title_full | Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title_fullStr | Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title_full_unstemmed | Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title_short | Bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| title_sort | bulk production of high-purity carbon nanosphere by combination of chemical vapor deposition methods |
| url | http://psasir.upm.edu.my/id/eprint/43975/ http://psasir.upm.edu.my/id/eprint/43975/ http://psasir.upm.edu.my/id/eprint/43975/ http://psasir.upm.edu.my/id/eprint/43975/1/Bulk%20production%20of%20high-purity%20carbon%20nanosphere%20by%20combination%20of%20chemical%20vapor%20deposition%20methods.pdf |