The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal
The synthesis of graphene nanosheets (GNs) from sub-bituminous coal aims to increase the added value of coal in a cheap, easy and proclaimed this method on an industrial scale. The addition of biocatalyst (BFS) in the pyrolysis process can reduce the reactive temperature of the pyrolysis process so...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/173737 |
| _version_ | 1826115239511326720 |
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| author | Purwandari, Vivi Rianna, Martha Marpongahtun Isnaeni, Isnaeni Zou, Yiming Harahap, Mahyuni Halawa, Gratianus Goei, Ronn Tok, Alfred Iing Yoong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Purwandari, Vivi Rianna, Martha Marpongahtun Isnaeni, Isnaeni Zou, Yiming Harahap, Mahyuni Halawa, Gratianus Goei, Ronn Tok, Alfred Iing Yoong |
| author_sort | Purwandari, Vivi |
| collection | NTU |
| description | The synthesis of graphene nanosheets (GNs) from sub-bituminous coal aims to increase the added value of coal in a cheap, easy and proclaimed this method on an industrial scale. The addition of biocatalyst (BFS) in the pyrolysis process can reduce the reactive temperature of the pyrolysis process so that the combustion reaction runs better at low temperatures of 200-300℃. Followed by hydrothermal carbonization of coal at 180℃ for 6 h with the addition of pyrolysis liquid smoke. Filter the results and exfoliate using 24 kHz ultrasonication for 30 min. Then centrifuge at 10,000 rm for 10 min to separate the solids. Wash the solids with deionized water to obtain a neutral pH. Using FESEM and TEM to obtain the morphological characteristics of GNs, structural characterization was studied using XPS, FTIR, and XRD. The GNs produced using BFS yielded 7–8 layers of Graphene, and a crystal size of 2.7 nm showing promising efficiency from the methodology used. |
| first_indexed | 2024-10-01T03:52:18Z |
| format | Journal Article |
| id | ntu-10356/173737 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:52:18Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1737372024-03-01T15:46:04Z The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal Purwandari, Vivi Rianna, Martha Marpongahtun Isnaeni, Isnaeni Zou, Yiming Harahap, Mahyuni Halawa, Gratianus Goei, Ronn Tok, Alfred Iing Yoong School of Materials Science and Engineering Engineering Coal Biocatalyst The synthesis of graphene nanosheets (GNs) from sub-bituminous coal aims to increase the added value of coal in a cheap, easy and proclaimed this method on an industrial scale. The addition of biocatalyst (BFS) in the pyrolysis process can reduce the reactive temperature of the pyrolysis process so that the combustion reaction runs better at low temperatures of 200-300℃. Followed by hydrothermal carbonization of coal at 180℃ for 6 h with the addition of pyrolysis liquid smoke. Filter the results and exfoliate using 24 kHz ultrasonication for 30 min. Then centrifuge at 10,000 rm for 10 min to separate the solids. Wash the solids with deionized water to obtain a neutral pH. Using FESEM and TEM to obtain the morphological characteristics of GNs, structural characterization was studied using XPS, FTIR, and XRD. The GNs produced using BFS yielded 7–8 layers of Graphene, and a crystal size of 2.7 nm showing promising efficiency from the methodology used. Published version 2024-02-26T04:38:57Z 2024-02-26T04:38:57Z 2023 Journal Article Purwandari, V., Rianna, M., Marpongahtun, Isnaeni, I., Zou, Y., Harahap, M., Halawa, G., Goei, R. & Tok, A. I. Y. (2023). The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal. Materials Science for Energy Technologies, 6, 282-289. https://dx.doi.org/10.1016/j.mset.2023.02.004 2589-2991 https://hdl.handle.net/10356/173737 10.1016/j.mset.2023.02.004 2-s2.0-85148323867 6 282 289 en Materials Science for Energy Technologies © 2023 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). application/pdf |
| spellingShingle | Engineering Coal Biocatalyst Purwandari, Vivi Rianna, Martha Marpongahtun Isnaeni, Isnaeni Zou, Yiming Harahap, Mahyuni Halawa, Gratianus Goei, Ronn Tok, Alfred Iing Yoong The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title | The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title_full | The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title_fullStr | The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title_full_unstemmed | The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title_short | The role of biocatalysts in the synthesis of graphene nanosheets from sub-bituminous coal |
| title_sort | role of biocatalysts in the synthesis of graphene nanosheets from sub bituminous coal |
| topic | Engineering Coal Biocatalyst |
| url | https://hdl.handle.net/10356/173737 |
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