Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture
The basic structure of aromatic compounds that are abundant in coal is the carbonaceous precursor derived from carbon microspheres. However, it remains to be a huge challenge to prepare carbon microspheres using coal due to the complex construction and composition of coal. Herein, a simple and viabl...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-09-01
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| Series: | Carbon Resources Conversion |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2588913323000807 |
| _version_ | 1827110336245792768 |
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| author | Mei An Tuo Guo Qingjie Guo |
| author_facet | Mei An Tuo Guo Qingjie Guo |
| author_sort | Mei An |
| collection | DOAJ |
| description | The basic structure of aromatic compounds that are abundant in coal is the carbonaceous precursor derived from carbon microspheres. However, it remains to be a huge challenge to prepare carbon microspheres using coal due to the complex construction and composition of coal. Herein, a simple and viable way to obtain coal-based microporous carbon microspheres was developed by means of ethanol pyrolysis and a sequential extraction strategy. The as-prepared carbon microsphere featured aspherical micron particles of a uniform size (0.6–1.6㎛), abundant O-functional groups, excellent thermal stability, high SBET(415.5–983.2 m2/g), and plentiful ultramicropores(63.15–72.72 %). The coal-based carbon microsphere exhibited a noteworthy CO2 uptake (3.19–4.97 mmol/g at 273 K and 1.0 bar), acceptable CO2/N2 selectivity (IAST: 23–46) and moderate isosteric heats (20–32 kJ/mol). This synthetic strategy is important for the preparation of ultramicroporous carbon microspheres using coal, and the synthetic carbon microspheres have promising prospects for highly efficient CO2 capture. |
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| format | Article |
| id | doaj.art-e8712f00e65f452fbe92c4ab8e649491 |
| institution | Directory Open Access Journal |
| issn | 2588-9133 |
| language | English |
| last_indexed | 2025-03-20T10:56:40Z |
| publishDate | 2024-09-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Carbon Resources Conversion |
| spelling | doaj.art-e8712f00e65f452fbe92c4ab8e6494912024-09-20T05:49:39ZengKeAi Communications Co., Ltd.Carbon Resources Conversion2588-91332024-09-0173100205Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 captureMei An0Tuo Guo1Qingjie Guo2Jiangmen Laboratory of Carbon Science and Technology, the Hong Kong University of Science and Technology (Guangzhou), Jiangmen, Guangzhou 529000, China; Corresponding author.State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, ChinaState Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China; Key Laboratory of Clean Chemical Engineering in Universities of Shandong, College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, ChinaThe basic structure of aromatic compounds that are abundant in coal is the carbonaceous precursor derived from carbon microspheres. However, it remains to be a huge challenge to prepare carbon microspheres using coal due to the complex construction and composition of coal. Herein, a simple and viable way to obtain coal-based microporous carbon microspheres was developed by means of ethanol pyrolysis and a sequential extraction strategy. The as-prepared carbon microsphere featured aspherical micron particles of a uniform size (0.6–1.6㎛), abundant O-functional groups, excellent thermal stability, high SBET(415.5–983.2 m2/g), and plentiful ultramicropores(63.15–72.72 %). The coal-based carbon microsphere exhibited a noteworthy CO2 uptake (3.19–4.97 mmol/g at 273 K and 1.0 bar), acceptable CO2/N2 selectivity (IAST: 23–46) and moderate isosteric heats (20–32 kJ/mol). This synthetic strategy is important for the preparation of ultramicroporous carbon microspheres using coal, and the synthetic carbon microspheres have promising prospects for highly efficient CO2 capture.http://www.sciencedirect.com/science/article/pii/S2588913323000807CoalUltramicroporousCarbon microspheresEthanolysisSequential extractionCO2 capture |
| spellingShingle | Mei An Tuo Guo Qingjie Guo Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture Carbon Resources Conversion Coal Ultramicroporous Carbon microspheres Ethanolysis Sequential extraction CO2 capture |
| title | Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture |
| title_full | Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture |
| title_fullStr | Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture |
| title_full_unstemmed | Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture |
| title_short | Facile preparation of coal-based ultramicroporous carbon microspheres for selective CO2 capture |
| title_sort | facile preparation of coal based ultramicroporous carbon microspheres for selective co2 capture |
| topic | Coal Ultramicroporous Carbon microspheres Ethanolysis Sequential extraction CO2 capture |
| url | http://www.sciencedirect.com/science/article/pii/S2588913323000807 |
| work_keys_str_mv | AT meian facilepreparationofcoalbasedultramicroporouscarbonmicrospheresforselectiveco2capture AT tuoguo facilepreparationofcoalbasedultramicroporouscarbonmicrospheresforselectiveco2capture AT qingjieguo facilepreparationofcoalbasedultramicroporouscarbonmicrospheresforselectiveco2capture |