Microfluidization of Graphite and Formulation of Graphene-Based Conductive Inks.

Autor: Karagiannidis PG; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Hodge SA; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Lombardi L; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Tomarchio F; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Decorde N; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Milana S; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Goykhman I; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Su Y; Microfluidics International Corporation , Westwood, Massachusetts 02090, United States., Mesite SV; Microfluidics International Corporation , Westwood, Massachusetts 02090, United States., Johnstone DN; Department of Materials Science and Metallurgy, University of Cambridge , Cambridge CB3 0FS, United Kingdom., Leary RK; Department of Materials Science and Metallurgy, University of Cambridge , Cambridge CB3 0FS, United Kingdom., Midgley PA; Department of Materials Science and Metallurgy, University of Cambridge , Cambridge CB3 0FS, United Kingdom., Pugno NM; Department of Civil, Environmental and Mechanical Engineering, University of Trento , Trento 38123, Italy.; Fondazione Bruno Kessler, Center for Materials and Microsystems , Povo, Trento 38123, Italy.; School of Engineering and Materials Science, Queen Mary University , London E1 4NS, United Kingdom., Torrisi F; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom., Ferrari AC; Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom.
Jazyk: angličtina
Zdroj: ACS nano [ACS Nano] 2017 Mar 28; Vol. 11 (3), pp. 2742-2755. Date of Electronic Publication: 2017 Feb 20.
DOI: 10.1021/acsnano.6b07735
Abstrakt: We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 10 8 s -1 ] turbulent flow conditions, with a 100% exfoliation yield. The material is stabilized without centrifugation at concentrations up to 100 g/L using carboxymethylcellulose sodium salt to formulate conductive printable inks. The sheet resistance of blade coated films is below ∼2Ω/□. This is a simple and scalable production route for conductive inks for large-area printing in flexible electronics.
Databáze: MEDLINE