English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/238968
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Tortuosity of the porous structure of carbon gels

AuthorsFlores López, Samantha Lizette; Ramírez Montoya, Luis Adrián CSIC ORCID ; Casal Banciella, María Dolores CSIC ORCID ; Montes Morán, Miguel Ángel CSIC ORCID ; Menéndez Díaz, J. Ángel ; Arenillas de la Puente, Ana CSIC ORCID
KeywordsCarbon gels
Mean pore size
Issue Date29-Sep-2020
CitationCarbon 171: 921-930 (2021)
AbstractExtensive studies on the correlation between synthesis variables and the final properties of resorcinol-formaldehyde carbon gels have been performed. This knowledge allows us to obtain carbon gels with analogous mean pore sizes and porosity from different combinations of synthesis variables. However, although the materials exhibit these similar characteristics, their behaviors may be very different in certain applications. Since the distribution and connectivity of the polymeric clusters are strongly affected by variables such as the amount of water and methanol in the precursor solution, it seems that the pore tortuosity and thus the permeability of the materials are also dependent on these factors. Further analysis of a series of carbon gels with the apparent same porosity shows how an increase in the amount of water or a suitable combination of methanol content and the pH of the precursor solution used for the polymerization process generate less tortuous pore structures. This allows us to attain even finer tuning of the porous structure of RF carbon gels either to reduce pressure drop or to increase the residence time of solutes in separation processes.
Publisher version (URL)https://doi.org/10.1016/j.carbon.2020.09.079
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
Tortuosity_Carbon_Flores.pdf Embargoed until September 30, 20221,39 MBAdobe PDFThumbnail
View/Open    Request a copy
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.