Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions
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Título: | Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions |
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Autor/es: | Gomes Ferreira de Paula, Fabiano | Campello-Gómez, Ignacio | Ortega, Paulo Fernando Ribeiro | Rodríguez Reinoso, Francisco | Martinez-Escandell, Manuel | Silvestre-Albero, Joaquín |
Grupo/s de investigación o GITE: | Materiales Avanzados |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Activated carbon | Structural flexibility | Sensing selectivity | Hydrocarbon and alcohol adsorption | Electrical conductivity |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 20-jun-2019 |
Editor: | MDPI |
Cita bibliográfica: | Gomes Ferreira de Paula F, Campello-Gómez I, Ortega PFR, Rodríguez-Reinoso F, Martínez-Escandell M, Silvestre-Albero J. Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions. Materials. 2019; 12(12):1988. doi:10.3390/ma12121988 |
Resumen: | Although traditionally high-surface area carbon materials have been considered as rigid structures with a disordered three dimensional (3D) network of graphite microdomains associated with a limited electrical conductivity (highly depending on the porous structure and surface chemistry), here we show for the first time that this is not the case for activated carbon materials prepared using harsh activation conditions (e.g., KOH activation). In these specific samples a clear structural re-orientation can be observed upon adsorption of different organic molecules, the structural changes giving rise to important changes in the electrical resistivity of the material. Whereas short chain hydrocarbons and their derivatives give rise to an increased resistivity, the contrary occurs for longer-chain hydrocarbons and/or alcohols. The high sensitivity of these high-surface area carbon materials towards these organic molecules opens the gate towards their application for sensing devices. |
Patrocinador/es: | Authors would like to acknowledge financial support from MINECO (MAT2016-80285-p), GV (PROMETEOII/2014/004), H2020 (MSCA-RISE-2016/NanoMed Project). FGFP acknowledge financial support from CAPES. |
URI: | http://hdl.handle.net/10045/93913 |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma12121988 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/ma12121988 |
Aparece en las colecciones: | INV - LMA - Artículos de Revistas Investigaciones financiadas por la UE |
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