Electric Conductivity Study of Porous Polyvinyl Alcohol/Graphene/Clay Aerogels: Effect of Compression
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Título
Electric Conductivity Study of Porous Polyvinyl Alcohol/Graphene/Clay Aerogels: Effect of CompressionAutoría
Fecha de publicación
2022-10-12Editor
American Chemical SocietyISSN
2470-1343Cita bibliográfica
Compañ, V.; Andrio, A.; Escorihuela, J.; Velasco, J.; Porras-Vazquez, A.; Gamez-Perez, J. Electric Conductivity Study of Porous Polyvinyl Alcohol/Graphene/Clay Aerogels: Effect of Compression. ACS Omega 2022, 7, 42, 37954–37963, DOI: 10.1021/acsomega.2c05123Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acsomega.2c05123Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
In this work, poly(vinyl alcohol) (PVOH)/graphene (GN) oxide/clay aerogels were prepared using montmorillonite (MMT) and kaolinite (KLT) as fillers. This work paves the way for the development of aerogels filled with ... [+]
In this work, poly(vinyl alcohol) (PVOH)/graphene (GN) oxide/clay aerogels were prepared using montmorillonite (MMT) and kaolinite (KLT) as fillers. This work paves the way for the development of aerogels filled with MMT or KLT with high conductivity. The mechanical properties of the polymer/clay aerogels are enhanced by incorporating GN into these systems. These composite materials have an enhanced thermal stability, and the combination of PVOH and GN leads to interconnected channels which favored the conductivity when a clay (MMT or KLT) is added to the mixed PVOH/GN matrix. However, after compressing the samples, the conductivities drastically decreased. These results show that the design of solid MMT/GN and KLT/GN composites as aerogels allows maximizing the space utilization of the electrode volume to achieve unhindered ion transport, which seems contrary to the general design principle of electrode materials where a suitable porous structure is desired, such as in our uncompressed samples. These findings also demonstrate the potential of these materials in electrodes, sensors, batteries, pressure-sensing applications, and supercapacitors. [-]
Publicado en
ACS omega, 2022, vol. 7, no 42Entidad financiadora
Ministerio de Economía y Competitividad (España)
Código del proyecto o subvención
MINECO/ICTI2013-2016/AGL2015-63855-C2-2-R
Url de la subvención
http://dx.doi.org/10.13039/501100003329
Título del proyecto o subvención
Desarrollo y caracterización de un multicapa biodegradable de alta barrera con propiedades activas y bioactivas para envasado alimentario
Derechos de acceso
info:eu-repo/semantics/openAccess
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