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Multicomponent bionanocomposites based on clay nanoarchitectures for electrochemical devices

AuthorsDico, Giulia Lo; Wicklein, Bernd ; Lisuzzo, Lorenzo; Lazzara, Giuseppe; Aranda, Pilar ; Ruiz-Hitzky, Eduardo
Carbon nanostructures
Electrochemical devices
Halloysite nanotubes
Issue Date2019
PublisherBeilstein Institut
CitationBeilstein Journal of Nanotechnology 10: 1303- 1315 (2019)
Abstract[EN] Based on the unique ability of defibrillated sepiolite (SEP) to form stable and homogeneous colloidal dispersions of diverse types of nanoparticles in aqueous media under ultrasonication, multicomponent conductive nanoarchitectured materials integrating halloysite nanotubes (HNTs), graphene nanoplatelets (GNPs) and chitosan (CHI) have been developed. The resulting nanohybrid suspensions could be easily formed into films or foams, where each individual component plays a critical role in the biocomposite: HNTs act as nanocontainers for bioactive species, GNPs provide electrical conductivity (enhanced by doping with MWCNTs) and, the CHI polymer matrix introduces mechanical and membrane properties that are of key significance for the development of electrochemical devices. The resulting characteristics allow for a possible application of these active elements as integrated multicomponent materials for advanced electrochemical devices such as biosensors and enzymatic biofuel cells. This strategy can be regarded as an >a la carte> menu, where the selection of the nanocomponents exhibiting different properties will determine a functional set of predetermined utility with SEP maintaining stable colloidal dispersions of different nanoparticles and polymers in water.
Publisher version (URL)http://dx.doi.org/10.3762/BJNANO.10.129
Identifiersdoi: 10.3762/BJNANO.10.129
e-issn: 2190-4286
Appears in Collections:(ICMM) Artículos
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