Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment
Integrated CO2 capture and utilization (ICCU) serves an effective strategy to achieve carbon neutrality, while the dual function materials (DFMs) are the key for high-efficient ICCU process. A series of CaONi based DFMs with different support materials, including Al2O3, CeO2, graphene (GPE) and com...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Carbon Capture Science & Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656825001125 |
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| author | Lanxun Zhao Ruting Nie Zhenliang Guo Jiawen Hu Qiang Hu Shuiping Yan Dingding Yao Haiping Yang |
| author_facet | Lanxun Zhao Ruting Nie Zhenliang Guo Jiawen Hu Qiang Hu Shuiping Yan Dingding Yao Haiping Yang |
| author_sort | Lanxun Zhao |
| collection | DOAJ |
| description | Integrated CO2 capture and utilization (ICCU) serves an effective strategy to achieve carbon neutrality, while the dual function materials (DFMs) are the key for high-efficient ICCU process. A series of CaONi based DFMs with different support materials, including Al2O3, CeO2, graphene (GPE) and commercial multi-walled carbon nanotubes (MWCNTs), were synthesized and compared for integrated CO2 capture and methanation (ICCM). The effect of operational temperatures on carbon conversion and CH4 production was also explored. Results show that metal oxides supported DFMs exhibit relatively high CH4 yield, while the carbon materials possessed comparable activity but very good durability in a continuous ICCM test for 10 cycles. The improved stability was contributed by the resistance in metal phase aggregation which restrained the increase of Ni particle size during cycle test. A favorable performance with CO2 capture capacity of 0.24 mmol/gDFMs and CO2 conversion of 80 % were achieved in the presence of DFMs supported by commercial MWCNTs at 450 °C. Furthermore, cost-effective plastic waste derived MWCNTs were used to replace the commercial samples for the above ICCM process from a green and sustainable perspective. It is found that Co modified CaONi DFMs supported by plastic derived MWCNTs displayed excellent performance with approximately 0.15 mmol/gDFMs of CH4 yield and even 100 % of CH4 selectivity in ICCM. This may be contributed by the enhanced CO2 adsorption/activation and H2 chemisorption with Co addition. Carbon footprint assessment show that the plastic waste assisted ICCM process achieved around 92 % and 20 % reduction in global warming potential compared to two prevalent industrial carbon conversion and methanation scenarios. These findings highlight the promising potential of the proposed ICCM for enhancing industrial sustainability and combating climate change. |
| format | Article |
| id | doaj-art-59d1bc5704a74faca797cf97ed5d7569 |
| institution | Kabale University |
| issn | 2772-6568 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Capture Science & Technology |
| spelling | doaj-art-59d1bc5704a74faca797cf97ed5d75692025-08-20T03:58:21ZengElsevierCarbon Capture Science & Technology2772-65682025-09-011610047310.1016/j.ccst.2025.100473Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessmentLanxun Zhao0Ruting Nie1Zhenliang Guo2Jiawen Hu3Qiang Hu4Shuiping Yan5Dingding Yao6Haiping Yang7College of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaSchool of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Engineering, Huazhong Agricultural University, Wuhan 430070, China; Corresponding author.School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaIntegrated CO2 capture and utilization (ICCU) serves an effective strategy to achieve carbon neutrality, while the dual function materials (DFMs) are the key for high-efficient ICCU process. A series of CaONi based DFMs with different support materials, including Al2O3, CeO2, graphene (GPE) and commercial multi-walled carbon nanotubes (MWCNTs), were synthesized and compared for integrated CO2 capture and methanation (ICCM). The effect of operational temperatures on carbon conversion and CH4 production was also explored. Results show that metal oxides supported DFMs exhibit relatively high CH4 yield, while the carbon materials possessed comparable activity but very good durability in a continuous ICCM test for 10 cycles. The improved stability was contributed by the resistance in metal phase aggregation which restrained the increase of Ni particle size during cycle test. A favorable performance with CO2 capture capacity of 0.24 mmol/gDFMs and CO2 conversion of 80 % were achieved in the presence of DFMs supported by commercial MWCNTs at 450 °C. Furthermore, cost-effective plastic waste derived MWCNTs were used to replace the commercial samples for the above ICCM process from a green and sustainable perspective. It is found that Co modified CaONi DFMs supported by plastic derived MWCNTs displayed excellent performance with approximately 0.15 mmol/gDFMs of CH4 yield and even 100 % of CH4 selectivity in ICCM. This may be contributed by the enhanced CO2 adsorption/activation and H2 chemisorption with Co addition. Carbon footprint assessment show that the plastic waste assisted ICCM process achieved around 92 % and 20 % reduction in global warming potential compared to two prevalent industrial carbon conversion and methanation scenarios. These findings highlight the promising potential of the proposed ICCM for enhancing industrial sustainability and combating climate change.http://www.sciencedirect.com/science/article/pii/S2772656825001125Integrated CO2 capture and utilizationCarbon materialsDual function materialsMethanation |
| spellingShingle | Lanxun Zhao Ruting Nie Zhenliang Guo Jiawen Hu Qiang Hu Shuiping Yan Dingding Yao Haiping Yang Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment Carbon Capture Science & Technology Integrated CO2 capture and utilization Carbon materials Dual function materials Methanation |
| title | Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment |
| title_full | Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment |
| title_fullStr | Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment |
| title_full_unstemmed | Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment |
| title_short | Carbon supported dual functional materials for integrated carbon dioxide capture and methanation: Performance of different support materials and carbon footprint assessment |
| title_sort | carbon supported dual functional materials for integrated carbon dioxide capture and methanation performance of different support materials and carbon footprint assessment |
| topic | Integrated CO2 capture and utilization Carbon materials Dual function materials Methanation |
| url | http://www.sciencedirect.com/science/article/pii/S2772656825001125 |
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