This title appears in the Scientific Report :
2021
Please use the identifier:
http://hdl.handle.net/2128/29518 in citations.
Please use the identifier: http://dx.doi.org/10.1021/acsami.1c13541 in citations.
Structural study of polyacrylonitrile-based carbon nanofibers for understanding gas adsorption
Structural study of polyacrylonitrile-based carbon nanofibers for understanding gas adsorption
Polyacrylonitrile-based carbon nanofibers (PAN-based CNFs) have great potential to be used for carbon dioxide (CO2) capture due to their excellent CO2 adsorption properties. The porous structure of PAN-based CNFs originates from their turbostratic structure, which is composed of numerous disordered...
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Personal Name(s): | Basak, Shibabrata (Corresponding author) |
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Tempel, Hermann / Kungl, Hans / Selmert, Victor / Eichel, Rüdiger-A. / Park, Junbeom / Kretzschmar, Ansgar / Camara, Osmane | |
Contributing Institute: |
Grundlagen der Elektrochemie; IEK-9 |
Published in: | ACS applied materials & interfaces, 13 (2021) 39, S. 46665–46670 |
Imprint: |
Washington, DC
Soc.
2021
|
DOI: |
10.1021/acsami.1c13541 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Power-based Fuels and Chemicals |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/acsami.1c13541 in citations.
Polyacrylonitrile-based carbon nanofibers (PAN-based CNFs) have great potential to be used for carbon dioxide (CO2) capture due to their excellent CO2 adsorption properties. The porous structure of PAN-based CNFs originates from their turbostratic structure, which is composed of numerous disordered stacks of graphitic layers. During the carbonization process, the internal structure is arranged toward the ordered graphitic structure, which significantly influences the gas adsorption properties of PAN-based CNFs. However, the relation between structural transformation and CO2 capture is still not clear enough to tune the PAN-based CNFs. In this paper, we show that, with increasing carbonization temperature, the arrangement of the PAN-based CNF’s structure along the stack and lateral directions takes place independently: gradually aligning and merging along the stack direction and enlarging along the lateral direction. Further, we correlate the structural arrangement and the CO2 adsorption properties of the PAN-based CNFs to propose a comprehensive structural mechanism. This mechanism provides the knowledge to understand and tailor the gas adsorption properties of PAN-based CNFs. |