Transparent, Flexible, and Conductive 2D Titanium Carbide (MXene) Films with High Volumetric Capacitance

Flexible and conductive MXene films and nanocomposites with high capacitance.

MXenes, a new family of 2D materials, combine hydrophilic surfaces with metallic conductivity. Delamination of MXene produces single-layer nanosheets with thickness of about a nanometer and lateral size of the order of micrometers. The high aspect ratio of delaminated MXene renders it promising nanofiller in multifunctional polymer nanocomposites. Herein, Ti3C2T(x) MXene was mixed with either a...

Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films

Since the discovery of graphene, the quest for two-dimensional (2D) materials has intensified greatly. Recently, a new family of 2D transition metal carbides and carbonitrides (MXenes) was discovered that is both conducting and hydrophilic, an uncommon combination. To date MXenes have been produced as powders, flakes, and colloidal solutions. Herein, we report on the fabrication of ∼1 × 1 cm2 T...

Probing the Mechanism of High Capacitance in 2D Titanium Carbide Using In Situ XRay Absorption Spectroscopy

(comparable only with hydrated RuO 2 ) was measured for Ti 3 C 2 T x in aqueous electrolytes. [ 11,14 ] Our previous studies revealed that spontaneous intercalation of some cations takes place when MXene samples are exposed to aqueous electrolytes. [ 6 ] In situ X-ray diffraction showed that variations of the distance between the Ti 3 C 2 T x layers (which is proportional to the c lattice param...

High capacitance of surface-modified 2D titanium carbide in acidic electrolyte

Continuous production of flexible carbon nanotube-based transparent conductive films.

This work shows a simple, single-stage, scalable method for the continuous production of high-quality carbon nanotube-polymer transparent conductive films from carbon feedstock. Besides the ease of scalability, a particular advantage of this process is that the concentration of nanotubes in the films, and thus transparency and conductivity, can be adjusted by changing simple process parameters....