Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction
A one-step and template-free synthesis of a SiC nanowires/C (SiC-NW/C) composite from rice husks (RHs) is realized via a molten-salt-assisted electrochemical method. The process integrates simultaneously carbonization, electrodeoxidation, nanostructuring, and self-purification for converting RHs to...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/147968 |
| _version_ | 1811691517205544960 |
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| author | Weng, Wei Wang, Sibo Xiao, Wei Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Weng, Wei Wang, Sibo Xiao, Wei Lou, David Xiong Wen |
| author_sort | Weng, Wei |
| collection | NTU |
| description | A one-step and template-free synthesis of a SiC nanowires/C (SiC-NW/C) composite from rice husks (RHs) is realized via a molten-salt-assisted electrochemical method. The process integrates simultaneously carbonization, electrodeoxidation, nanostructuring, and self-purification for converting RHs to a SiC-NW/C hybrid that is assembled from SiC NWs embedded in porous N-doped graphitic carbon with strong coupling. The SiC-NW/C nanostructure enables efficient CO2 adsorption and fast separation and transfer of charge carriers. Benefiting from the structural and compositional merits, the SiC-NW/C composite shows superior activity for photoreduction of CO2 to CO, in the absence of any additional cocatalysts or sacrificial agents. The process proposed herein might help to bridge a closed-loop carbon cycle in the whole production-utilization of biomass. |
| first_indexed | 2024-10-01T06:21:09Z |
| format | Journal Article |
| id | ntu-10356/147968 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:21:09Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1479682023-12-29T06:50:39Z Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction Weng, Wei Wang, Sibo Xiao, Wei Lou, David Xiong Wen School of Chemical and Biomedical Engineering Engineering::Chemical engineering Engineering::Materials Molten Salt Electrolysis Biomass Utilization A one-step and template-free synthesis of a SiC nanowires/C (SiC-NW/C) composite from rice husks (RHs) is realized via a molten-salt-assisted electrochemical method. The process integrates simultaneously carbonization, electrodeoxidation, nanostructuring, and self-purification for converting RHs to a SiC-NW/C hybrid that is assembled from SiC NWs embedded in porous N-doped graphitic carbon with strong coupling. The SiC-NW/C nanostructure enables efficient CO2 adsorption and fast separation and transfer of charge carriers. Benefiting from the structural and compositional merits, the SiC-NW/C composite shows superior activity for photoreduction of CO2 to CO, in the absence of any additional cocatalysts or sacrificial agents. The process proposed herein might help to bridge a closed-loop carbon cycle in the whole production-utilization of biomass. Ministry of Education (MOE) Accepted version W. Xiao and W. Weng acknowledge the funding support from the National Natural Science Foundation of China (51722404, 51674177, 51804221 and 91845113). X. W. Lou acknowledges the funding support from the Ministry of Education of Singapore through the AcRF Tier-2 grant (MOE2017-T2-2-003). 2021-04-19T07:02:57Z 2021-04-19T07:02:57Z 2020 Journal Article Weng, W., Wang, S., Xiao, W. & Lou, D. X. W. (2020). Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction. Advanced Materials, 32(29), e2001560-. https://dx.doi.org/10.1002/adma.202001560 0935-9648 0000-0002-5557-4437 https://hdl.handle.net/10356/147968 10.1002/adma.202001560 32529684 2-s2.0-85086230854 29 32 e2001560 en Advanced Materials This is the peer reviewed version of the following article: Weng, W., Wang, S., Xiao, W. & Lou, D. X. W. (2020). Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction. Advanced Materials, 32(29), e2001560-. https://dx.doi.org/10.1002/adma.202001560, which has been published in final form at https://doi.org/10.1002/adma.202001560. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf |
| spellingShingle | Engineering::Chemical engineering Engineering::Materials Molten Salt Electrolysis Biomass Utilization Weng, Wei Wang, Sibo Xiao, Wei Lou, David Xiong Wen Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title | Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title_full | Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title_fullStr | Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title_full_unstemmed | Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title_short | Direct conversion of rice husks to nanostructured SiC/C for CO2 photoreduction |
| title_sort | direct conversion of rice husks to nanostructured sic c for co2 photoreduction |
| topic | Engineering::Chemical engineering Engineering::Materials Molten Salt Electrolysis Biomass Utilization |
| url | https://hdl.handle.net/10356/147968 |
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