Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies
Global warming led by excessive CO2 emission is a significant challenge. CO2 capture is recognised as an efficient way to mitigate this issue. In this study, we successfully synthesized a series of activation-free nitrogen-doped mesoporous carbon nanospheres (Mx: where x is ratio of urea/phenol) via...
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Elsevier
2024-12-01
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| Series: | Carbon Capture Science & Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656824001143 |
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| author | Rasmeet Singh Lizhuo Wang Junhan Cheng Haoyue Sun Chunfei Wu Jun Huang |
| author_facet | Rasmeet Singh Lizhuo Wang Junhan Cheng Haoyue Sun Chunfei Wu Jun Huang |
| author_sort | Rasmeet Singh |
| collection | DOAJ |
| description | Global warming led by excessive CO2 emission is a significant challenge. CO2 capture is recognised as an efficient way to mitigate this issue. In this study, we successfully synthesized a series of activation-free nitrogen-doped mesoporous carbon nanospheres (Mx: where x is ratio of urea/phenol) via an aqueous synthesis route, using urea-phenol-formaldehyde resin as a precursor and triblock copolymer F127 as a soft template. These Mx exhibited nitrogen contents ranging from 0.48 % to 1.52 % and with high surface areas within the range of 486.382 to 683.891 m²g⁻¹. Furthermore, they demonstrated a uniform pore channel diameter of around 3.2 nm. The incorporated nitrogen atoms primarily in the forms of pyrrolic, pyridine, and amine groups, offers abundant adsorption sites for CO2. The CO2 adsorption and desorption performance of as-synthesized Mx were systematically studied under various CO2 feed concentrations, including 10 % CO2 by volume, compressed air (mimicking direct air capture (DAC)), and 10 % CO2 by volume at 90 % relative humidity, all at 298 K and ∼1 atm. Interestingly, the M0.1 sample displayed exceptional CO2 capture performance, achieving a capacity of 2.53 mmol g⁻¹ (or 4.8 mmol m⁻²) at a 10 % CO2 by volume feed. This outstanding CO2 adsorption capacity can be attributed to the synergistic effects of ordered mesopore channels, abundant structural micropores, and nitrogen functionalities, facilitating efficient CO2 adsorption and desorption. Additionally, M0.1 also displayed high hydrophobicity character, making it ideal for CO2 adsorption under humid conditions. Moreover, the Mx displayed remarkable stability and recyclability, positioning them as promising and environmentally friendly adsorbents for CO2 capture and separation under practical operating conditions. Additionally, the proposed Mx does not need any additional alkali activation before application, thus simplifying the implementation process, reducing costs, and complexity. |
| format | Article |
| id | doaj-art-c46d6d6877f04d4eaa455090c1657053 |
| institution | OA Journals |
| issn | 2772-6568 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Capture Science & Technology |
| spelling | doaj-art-c46d6d6877f04d4eaa455090c16570532025-08-20T01:54:54ZengElsevierCarbon Capture Science & Technology2772-65682024-12-011310030210.1016/j.ccst.2024.100302Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studiesRasmeet Singh0Lizhuo Wang1Junhan Cheng2Haoyue Sun3Chunfei Wu4Jun Huang5Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney Nano Institute, the University of Sydney, NSW 2006, AustraliaLaboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney Nano Institute, the University of Sydney, NSW 2006, Australia; Corresponding authors.School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT7 1NN, UKLaboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney Nano Institute, the University of Sydney, NSW 2006, AustraliaSchool of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast BT7 1NN, UK; Corresponding authors.Laboratory for Catalysis Engineering, School of Chemical and Biomolecular Engineering, Sydney Nano Institute, the University of Sydney, NSW 2006, Australia; Corresponding authors.Global warming led by excessive CO2 emission is a significant challenge. CO2 capture is recognised as an efficient way to mitigate this issue. In this study, we successfully synthesized a series of activation-free nitrogen-doped mesoporous carbon nanospheres (Mx: where x is ratio of urea/phenol) via an aqueous synthesis route, using urea-phenol-formaldehyde resin as a precursor and triblock copolymer F127 as a soft template. These Mx exhibited nitrogen contents ranging from 0.48 % to 1.52 % and with high surface areas within the range of 486.382 to 683.891 m²g⁻¹. Furthermore, they demonstrated a uniform pore channel diameter of around 3.2 nm. The incorporated nitrogen atoms primarily in the forms of pyrrolic, pyridine, and amine groups, offers abundant adsorption sites for CO2. The CO2 adsorption and desorption performance of as-synthesized Mx were systematically studied under various CO2 feed concentrations, including 10 % CO2 by volume, compressed air (mimicking direct air capture (DAC)), and 10 % CO2 by volume at 90 % relative humidity, all at 298 K and ∼1 atm. Interestingly, the M0.1 sample displayed exceptional CO2 capture performance, achieving a capacity of 2.53 mmol g⁻¹ (or 4.8 mmol m⁻²) at a 10 % CO2 by volume feed. This outstanding CO2 adsorption capacity can be attributed to the synergistic effects of ordered mesopore channels, abundant structural micropores, and nitrogen functionalities, facilitating efficient CO2 adsorption and desorption. Additionally, M0.1 also displayed high hydrophobicity character, making it ideal for CO2 adsorption under humid conditions. Moreover, the Mx displayed remarkable stability and recyclability, positioning them as promising and environmentally friendly adsorbents for CO2 capture and separation under practical operating conditions. Additionally, the proposed Mx does not need any additional alkali activation before application, thus simplifying the implementation process, reducing costs, and complexity.http://www.sciencedirect.com/science/article/pii/S2772656824001143CO2 adsorptionNitrogen-doped mesoporous carbon nanospheresDirect air captureSoft templatingUrea-phenol-formaldehyde resin |
| spellingShingle | Rasmeet Singh Lizhuo Wang Junhan Cheng Haoyue Sun Chunfei Wu Jun Huang Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies Carbon Capture Science & Technology CO2 adsorption Nitrogen-doped mesoporous carbon nanospheres Direct air capture Soft templating Urea-phenol-formaldehyde resin |
| title | Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies |
| title_full | Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies |
| title_fullStr | Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies |
| title_full_unstemmed | Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies |
| title_short | Synthesis of nitrogen-doped mesoporous carbon nanospheres using urea-phenol-formaldehyde resin for efficient CO2 adsorption–desorption studies |
| title_sort | synthesis of nitrogen doped mesoporous carbon nanospheres using urea phenol formaldehyde resin for efficient co2 adsorption desorption studies |
| topic | CO2 adsorption Nitrogen-doped mesoporous carbon nanospheres Direct air capture Soft templating Urea-phenol-formaldehyde resin |
| url | http://www.sciencedirect.com/science/article/pii/S2772656824001143 |
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