N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance
An rGO−like carbon compound has been synthesized from biomass, i.e., old coconut shell, by a carbonization process followed by heating at 400°C for 5 h. The nitrogen doping was achieved by adding the urea (CH4N2O) and stirring at 70°C for 14 h. The morphology and structure of the rGO-like carbon wer...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
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Tech Science Press
2022
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| Online Access: | http://psasir.upm.edu.my/id/eprint/108642/ |
| _version_ | 1848865185799864320 |
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| author | Khambali, Imam Priyanto, Budhi Asih, Retno Anjelh Baqiya, Malik Mahyiddin Ramli, Muhammad Huda Osman, Nurul Tunmee, Sarayut Nakajima, Hideki Triwikantoro, . Zainuri, Mochamad Darminto, . |
| author_facet | Khambali, Imam Priyanto, Budhi Asih, Retno Anjelh Baqiya, Malik Mahyiddin Ramli, Muhammad Huda Osman, Nurul Tunmee, Sarayut Nakajima, Hideki Triwikantoro, . Zainuri, Mochamad Darminto, . |
| author_sort | Khambali, Imam |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | An rGO−like carbon compound has been synthesized from biomass, i.e., old coconut shell, by a carbonization process followed by heating at 400°C for 5 h. The nitrogen doping was achieved by adding the urea (CH4N2O) and stirring at 70°C for 14 h. The morphology and structure of the rGO-like carbon were investigated by electron microscopies and Raman spectroscopy. The presence of C-N functional groups was analyzed by Fourier transform infrared and synchrotron X-ray photoemission spectroscopy, while the particle and the specific capacitance were measured by particle sizer and cyclic voltammetry. The highest specific capacitance of 72.78 F/g is achieved by the sample with 20 urea, having the smallest particles size and the largest surface area. The corresponding sample has shown to be constituted by the appropriate amount of C–N pyrrolic and pyridinic defects. |
| first_indexed | 2025-11-15T14:00:42Z |
| format | Article |
| id | upm-108642 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T14:00:42Z |
| publishDate | 2022 |
| publisher | Tech Science Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1086422024-09-26T08:11:37Z http://psasir.upm.edu.my/id/eprint/108642/ N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance Khambali, Imam Priyanto, Budhi Asih, Retno Anjelh Baqiya, Malik Mahyiddin Ramli, Muhammad Huda Osman, Nurul Tunmee, Sarayut Nakajima, Hideki Triwikantoro, . Zainuri, Mochamad Darminto, . An rGO−like carbon compound has been synthesized from biomass, i.e., old coconut shell, by a carbonization process followed by heating at 400°C for 5 h. The nitrogen doping was achieved by adding the urea (CH4N2O) and stirring at 70°C for 14 h. The morphology and structure of the rGO-like carbon were investigated by electron microscopies and Raman spectroscopy. The presence of C-N functional groups was analyzed by Fourier transform infrared and synchrotron X-ray photoemission spectroscopy, while the particle and the specific capacitance were measured by particle sizer and cyclic voltammetry. The highest specific capacitance of 72.78 F/g is achieved by the sample with 20 urea, having the smallest particles size and the largest surface area. The corresponding sample has shown to be constituted by the appropriate amount of C–N pyrrolic and pyridinic defects. Tech Science Press 2022-12-01 Article PeerReviewed Khambali, Imam and Priyanto, Budhi and Asih, Retno and Anjelh Baqiya, Malik and Mahyiddin Ramli, Muhammad and Huda Osman, Nurul and Tunmee, Sarayut and Nakajima, Hideki and Triwikantoro, . and Zainuri, Mochamad and Darminto, . (2022) N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance. Journal of Renewable Materials, 11 (4). 1823 - 1833. ISSN 2164-6325; ESSN: 2164-6341 https://www.techscience.com/jrm/v11n4/50690 10.32604/jrm.2023.025026 |
| spellingShingle | Khambali, Imam Priyanto, Budhi Asih, Retno Anjelh Baqiya, Malik Mahyiddin Ramli, Muhammad Huda Osman, Nurul Tunmee, Sarayut Nakajima, Hideki Triwikantoro, . Zainuri, Mochamad Darminto, . N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title | N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title_full | N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title_fullStr | N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title_full_unstemmed | N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title_short | N-Doped rGO-like carbon prepared from coconut shell: structure and specific capacitance |
| title_sort | n-doped rgo-like carbon prepared from coconut shell: structure and specific capacitance |
| url | http://psasir.upm.edu.my/id/eprint/108642/ http://psasir.upm.edu.my/id/eprint/108642/ http://psasir.upm.edu.my/id/eprint/108642/ |