Waterborne graphene-and nanocellulose-based inks for functional conductive films and 3d structures

González-Domínguez J.M. ; Baigorri A. ; Álvarez-Sánchez M.Á. ; Colom E. ; Villacampa B. (Universidad de Zaragoza) ; Ansón-Casaos A. ; García-Bordejé E. ; Benito A.M. ; Maser W.K.

Resumen: In the vast field of conductive inks, graphene-based nanomaterials, including chemical derivatives such as graphene oxide as well as carbon nanotubes, offer important advantages as per their excellent physical properties. However, inks filled with carbon nanostructures are usually based on toxic and contaminating organic solvents or surfactants, posing serious health and environmental risks. Water is the most desirable medium for any envisioned application, thus, in this context, nanocellulose, an emerging nanomaterial, enables the dispersion of carbon nanomaterials in aqueous media within a sustainable and environmentally friendly scenario. In this work, we present the development of water-based inks made of a ternary system (graphene oxide, carbon nanotubes and nanocellulose) employing an autoclave method. Upon controlling the experimental variables, low-viscosity inks, high-viscosity pastes or self-standing hydrogels can be obtained in a tailored way. The resulting inks and pastes are further processed by spray-or rod-coating technologies into conductive films, and the hydrogels can be turned into aerogels by freeze-drying. The film properties, with respect to electrical surface resistance, surface morphology and robustness, present favorable opportunities as metal-free conductive layers in liquid-phase processed electronic device structures.

Idioma: Inglés

DOI: 10.3390/nano11061435

Año: 2021

Publicado en: Nanomaterials 11, 6 (2021), 1435 [18 pp.]
ISSN: 2079-4991

Factor impacto JCR: 5.719 (2021)

Categ. JCR: PHYSICS, APPLIED rank: 37 / 161 = 0.23 (2021) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 53 / 108 = 0.491 (2021) - Q2 - T2
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 55 / 179 = 0.307 (2021) - Q2 - T1
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 109 / 344 = 0.317 (2021) - Q2 - T1

Factor impacto CITESCORE: 6.6 - Chemical Engineering (Q1) - Materials Science (Q1)

Factor impacto SCIMAGO: 0.839 - Materials Science (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/E47-20R
Financiación: info:eu-repo/grantAgreement/ES/DGA/T03-20R
Financiación: info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-104272RB-C51/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2019-104307GB-I00-AEI-10.13039-501100011033
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BES-2017-080020
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/ENE2016-79282-C5-1-R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)