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Improve in CO2 and CH4 adsorption capacity on carbon microfibers synthesized by electrospinning of PAN

dc.contributor.authorOjeda López, Reyna
dc.contributor.authorEsparza Schulz, Juan Marcos
dc.contributor.authorPérez Hermosillo, Isaac Jhonnatan
dc.contributor.authorHernández Gordillo, Armin
dc.contributor.authorDomínguez Ortiz, Armando
dc.date.accessioned2020-03-12T23:37:09Z
dc.date.available2020-03-12T23:37:09Z
dc.date.issued2019
dc.identifier.citationOjeda-López, R.; Esparza-Schulz, J.M.; Pérez-Hermosillo, I.J.; Hernández-Gordillo, A.; Domínguez-Ortiz, A. Improve in CO2 and CH4 Adsorption Capacity on Carbon Microfibers Synthesized by Electrospinning of PAN. Fibers 2019, 7, 81.
dc.identifier.urihttp://hdl.handle.net/11627/5317
dc.description.abstract"Carbon microfibers (CMF) has been used as an adsorbent material for CO2 and CH4 capture. The gas adsorption capacity depends on the chemical and morphological structure of CMF. The CMF physicochemical properties change according to the applied stabilization and carbonization temperatures. With the aim of studying the effect of stabilization temperature on the structural properties of the carbon microfibers and their CO2 and CH4 adsorption capacity, four different stabilization temperatures (250, 270, 280, and 300 °C) were explored, maintaining a constant carbonization temperature (900 °C). In materials stabilized at 250 and 270 °C, the cyclization was incomplete, in that, the nitrile groups (triple-bond structure, e.g., C?N) were not converted to a double-bond structure (e.g., C=N), to form a six-membered cyclic pyridine ring, as a consequence the material stabilized at 300 °C resulting in fragile microfibers; therefore, the most appropriate stabilization temperature was 280 °C. Finally, to corroborate that the specific surface area (microporosity) is not the determining factor that influences the adsorption capacity of the materials, carbonization of polyacrylonitrile microfibers (PANMFs) at five different temperatures (600, 700, 800, 900, and 1000 °C) is carried, maintaining a constant temperature of 280 °C for the stabilization process. As a result, the CMF chemical composition directly affects the CO2 and CH4 adsorption capacity, even more directly than the specific surface area. Thus, the chemical variety can be useful to develop carbon microfibers with a high adsorption capacity and selectivity in materials with a low specific surface area. The amount adsorbed at 25 °C and 1.0 bar oscillate between 2.0 and 2.9 mmol/g adsorbent for CO2 and between 0.8 and 2.0 mmol/g adsorbent for CH4, depending on the calcination treatment applicated; these values are comparable with other material adsorbents of greenhouse gases."
dc.publisherMDPI AG
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCMF
dc.subjectCO2 adsorption
dc.subjectCH4 adsorption
dc.subjectPANMFs
dc.subjectElectrospinning
dc.subjectStabilization temperature
dc.subjectCarbonization temperature
dc.subject.classificationQUÍMICA
dc.titleImprove in CO2 and CH4 adsorption capacity on carbon microfibers synthesized by electrospinning of PAN
dc.typearticle
dc.identifier.doihttps://doi.org/10.3390/fib7100081
dc.rights.accessAcceso Abierto


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional