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Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage

Carbon nanofibers (CNFs) derived from electrospun polyacrylonitrile (PAN) were investigated with respect to their gas adsorption properties. By employing CO(2) adsorption measurements, it is shown that the adsorption capacity and selectivity of the fibers can be tailored by means of the applied carb...

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Autores principales: Kretzschmar, Ansgar, Selmert, Victor, Weinrich, Henning, Kungl, Hans, Tempel, Hermann, Eichel, Rüdiger‐A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7317881/
https://www.ncbi.nlm.nih.gov/pubmed/32216123
http://dx.doi.org/10.1002/cssc.202000520
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author Kretzschmar, Ansgar
Selmert, Victor
Weinrich, Henning
Kungl, Hans
Tempel, Hermann
Eichel, Rüdiger‐A.
author_facet Kretzschmar, Ansgar
Selmert, Victor
Weinrich, Henning
Kungl, Hans
Tempel, Hermann
Eichel, Rüdiger‐A.
author_sort Kretzschmar, Ansgar
collection PubMed
description Carbon nanofibers (CNFs) derived from electrospun polyacrylonitrile (PAN) were investigated with respect to their gas adsorption properties. By employing CO(2) adsorption measurements, it is shown that the adsorption capacity and selectivity of the fibers can be tailored by means of the applied carbonization temperature. General pore properties of the CNFs were identified by Ar adsorption measurements, whereas CO(2) adsorption measurements provided information about the ultramicroporosity, adsorption energies, and adsorption capacities. Ideal adsorbed solution theory (IAST) selectivities under practically relevant conditions were determined by evaluation of single‐component data for N(2) and CO(2). Especially for low carbonization temperatures, the CNFs exhibit very good low‐pressure adsorption performance and excellent CO(2)/N(2) IAST selectivities of 350 at 20 mbar and 132 at 1 bar, which are attributed to a molecular‐sieve effect in very narrow slit pores. These IAST selectivities are some of the highest values for carbon materials reported in the literature so far and the highest IAST selectivities for as‐prepared, non‐post‐treated carbon ever.
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spelling pubmed-73178812020-06-29 Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage Kretzschmar, Ansgar Selmert, Victor Weinrich, Henning Kungl, Hans Tempel, Hermann Eichel, Rüdiger‐A. ChemSusChem Full Papers Carbon nanofibers (CNFs) derived from electrospun polyacrylonitrile (PAN) were investigated with respect to their gas adsorption properties. By employing CO(2) adsorption measurements, it is shown that the adsorption capacity and selectivity of the fibers can be tailored by means of the applied carbonization temperature. General pore properties of the CNFs were identified by Ar adsorption measurements, whereas CO(2) adsorption measurements provided information about the ultramicroporosity, adsorption energies, and adsorption capacities. Ideal adsorbed solution theory (IAST) selectivities under practically relevant conditions were determined by evaluation of single‐component data for N(2) and CO(2). Especially for low carbonization temperatures, the CNFs exhibit very good low‐pressure adsorption performance and excellent CO(2)/N(2) IAST selectivities of 350 at 20 mbar and 132 at 1 bar, which are attributed to a molecular‐sieve effect in very narrow slit pores. These IAST selectivities are some of the highest values for carbon materials reported in the literature so far and the highest IAST selectivities for as‐prepared, non‐post‐treated carbon ever. John Wiley and Sons Inc. 2020-05-04 2020-06-19 /pmc/articles/PMC7317881/ /pubmed/32216123 http://dx.doi.org/10.1002/cssc.202000520 Text en © 2020 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Kretzschmar, Ansgar
Selmert, Victor
Weinrich, Henning
Kungl, Hans
Tempel, Hermann
Eichel, Rüdiger‐A.
Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title_full Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title_fullStr Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title_full_unstemmed Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title_short Tailored Gas Adsorption Properties of Electrospun Carbon Nanofibers for Gas Separation and Storage
title_sort tailored gas adsorption properties of electrospun carbon nanofibers for gas separation and storage
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7317881/
https://www.ncbi.nlm.nih.gov/pubmed/32216123
http://dx.doi.org/10.1002/cssc.202000520
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