Rheological Characteristics of 2D Titanium Carbide (MXene) Dispersions: A Guide for Processing MXenes

Autor: Bilen Akuzum, Babak Anasori, Yury Gogotsi, E. Caglan Kumbur, Pavel Lelyukh, Kathleen Maleski, Nicolas J. Alvarez
Rok vydání: 2018
Předmět:
Zdroj: ACS Nano. 12:2685-2694
ISSN: 1936-086X
1936-0851
DOI: 10.1021/acsnano.7b08889
Popis: Understanding the rheological properties of two-dimensional (2D) materials in suspension is critical for the development of various solution processing and manufacturing techniques. 2D carbides and nitrides (MXenes) constitute one of the largest families of 2D materials with >20 synthesized compositions and applications already ranging from energy storage to medicine to optoelectronics. However, in spite of a report on clay-like behavior, not much is known about their rheological response. In this study, rheological behavior of single- and multilayer Ti3C2Tx in aqueous dispersions was investigated. Viscous and viscoelastic properties of MXene dispersions were studied over a variety of concentrations from colloidal dispersions to high loading slurries, showing that a multilayer MXene suspension with up to 70 wt % can exhibit flowability. Processing guidelines for the fabrication of MXene films, coatings, and fibers have been established based on the rheological properties. Surprisingly, high viscosity was ...
Databáze: OpenAIRE