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Título

Bacterial cellulose/graphene oxide aerogels with enhanced dimensional and thermal stability

AutorPinto, Susana C.; Gonçalves, Gil; Sandoval, Stefania CSIC ORCID; López Periago, Ana M. CSIC ORCID ; Borrás, Alejandro CSIC ORCID; Domingo, Concepción CSIC ORCID; Tobias, Gerard CSIC ORCID; Duarte, Isabel; Vicente, Romeu; Marques, Paula A.A.P.
Palabras claveBacterial cellulose
Graphene oxide
Reduction treatments
Dimensional stability
Thermal stability
Fecha de publicación15-feb-2020
EditorElsevier
CitaciónCarbohydrate Polymers 230: 115598 (2020)
ResumenWe present a novel method for processing bacterial cellulose/graphene oxide (BC/GO) aerogels with multifunctional properties. The addition of a small amount of dimethyl sulfoxide (DMSO) to the aqueous dispersion of the nanomaterials during the gelification process affected the water freezing temperature of the system and thereby affecting the porous structure of the aerogel obtained after liophilization. The possibility to obtain small and elongated pore with axial orientation allowed a significant improvement of the structural stability of the aerogels. Moreover, the aerogels reduction by thermal treatment with ammonia gas induced crosslinking between the different nanophases, thus given an incremental factor for the mechanical performance of the aerogels under harsh conditions. The resulting aerogels also showed significant improvements in terms of thermal stability and electrical conductivity. These multifunctional BC/GO aerogels present high potential as sustainable and ecological alternative materials for lightweight packaging, filters for atmosphere and water treatment, or energy applications.
Versión del editorhttp://dx.doi.org/10.1016/j.carbpol.2019.115598
URIhttp://hdl.handle.net/10261/220929
ISSN0144-8617
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