Multilayer-structured transparent MXene/PVDF film with excellent dielectric and energy storage performance

Abstract

A novel multilayer-structured Ti3C2Tx MXene/poly(vinylidene fluoride) film with a high dielectric constant and ultralow dielectric loss is presented.

All‐Organic Dielectrics with High Breakdown Strength and Energy Storage Density for High‐Power Capacitors

“…Along this line, the ceramic fillers with high dielectric constant or conductive particles have been added into different polymers to form nanocomposites with enhanced permittivity. [16][17][18][19][20][21] However, simply adding the above fillers to the polymer dielectrics tends to decrease the breakdown strength as well as energy density of polymer films owing to the poor dispersion of filler constituents. Therefore, core-shell structural fillers with different inorganic/organic shell materials have been proposed to improve the compatibility between fillers and polymer matrix, thereby further improving the dielectric constant and breakdown strength of composite films simultaneously.…”

Chemically bonding BaTiO3 nanoparticles in highly filled polymer nanocomposites for greatly enhanced dielectric properties

“…To tackle this challenge, the key is to ensure uniform dispersion of nanofillers and good interfacial compatibility in the polymer nanocomposites at high filler loading [27][28][29][30]37]. Considering the fact that the physiochemical properties of nanofillers and polymer matrices show a great disparity, and large surface-to-volume ratio of nanofillers [38][39][40][41]. Constructing sufficient reactive sites between nanofillers and polymer chains is of great importance to intensify the interfacial interactions.…”

Porosity Engineering of MXene Membrane towards Polysulfide Inhibition and Fast Lithium Ion Transportation for Lithium–Sulfur Batteries

“…[32,46] As shown in the highresolution Ti 2p spectra, several pairs of asymmetric peaks are observed corresponding to the interactions between Ti and C as well as O terminal atoms (C-Ti-OH and C-Ti-O) (Figure 2c). [47,48] With the increase of the Cu 2+ concentration from 0.2 to 1.0 m, the component ratio of Ti-C gradually increases and the component ratio of Ti-C-OH decreases, indicating the removal of surface oxygen terminals. Owing to their more defective and large exposed edges around the nanopores, PM samples tend to be oxidized when exposed in air, which can be revealed from the Ti-O (≈459.4 eV) peaks.…”