3D hierarchical TiC/TiO composite oxidation for improved lithium-ion storage.

To address the intrinsic limitations of both TiO and MXenes, we propose an effective strategy for the engineering of a 3D TiC/TiO nanorod hybrid, where the synthesized TiO nanorods are homogeneously decorated onto the surface of 3D TiC MXene simple oxidation. As the LIB anode, it demonstrates exceptional long-term cycling stability with a specific capacity of 384.1 mA h g after 600 cycles at 1.

A vertically-stacked MXene/rGO composite membrane for highly efficient H/CO separation.

A vertically-stacked MXene/rGO composite membrane with ultrashort transport channels is reported here, which demonstrated outstanding molecular sieving, , H/CO selectivity of up to 83 together with high H permeance of 2.7 × 10 mol m s Pa at 120 °C, highlighting its applicability for H/CO separation in CO capture and sequestration.

3D Honeycomb Fe/MXene Derived from Prussian Blue Microcubes with a Tunable Structure for Efficient Low-Frequency and Flexible Electromagnetic Absorbers.

The unique layered structure and high conductivity of MXene materials make them highly promising for microwave absorption. However, the finite loss mechanism and severe agglomeration present challenging obstacles for ideal microwave absorbers, which could be effectively improved by constructing a three-dimensional (3D) porous structure. This study reports a 3D honeycomb MXene using a straightforward template method.

Electromagnetic absorption enhancing mechanisms by modified biochar derived from : a combined experimental and simulation study.

Although the rapid advances of wireless technologies and electronic devices largely improve the quality of life, electromagnetic (EM) pollution increases the risk of exposure to EM radiation. Developing high-efficiency absorbers with a rational structure and wideband characteristics is of great significance to eliminate radiation pollution. Herein, derived biochar which would provide a suitable surface and multiple polarizations has been prepared as the supporter to anchor nanoparticles.

Dehydrogenation Coupling of Methane Using Catalyst-Loaded Proton-Conducting Perovskite Hollow Fiber Membranes.

Catalytic dehydrogenation coupling of methane (DCM) represents an effective way to convert natural gas to more useful C products (CH, CH). In this work, BaCeTbCoO (BCTCo) perovskite hollow fiber membranes were fabricated by the combined phase inversion and sintering method. SrCeYbO (SCYb) perovskite oxide was loaded as a catalyst onto the inner hollow fiber membrane surface, which promoted the CH conversion and the C hydrocarbon selectivity during the DCM reaction.

CoFeOnanoparticles dispersed on carbon rods derived from cotton for high-efficiency microwave absorption.

Biomass-derived carbon materials have received a surge of scientific attention to develop lightweight and broadband microwave absorbers. Herein, rodlike porous carbon materials derived from cotton have been fabricated with uniformly dispersed CoFeOnanoparticles via facile and scalable process. The combination of magnetic particles and carbonaceous material is advantageous to realize the magnetic-dielectric synergistic effect which could effectively promote the dissipation of incident waves, giving rise to an optimal reflection loss value of -48.

Structural Tuning of a Flexible and Porous Polypyrrole Film by a Template-Assisted Method for Enhanced Capacitance for Supercapacitor Applications.

Constructing a rational electrode structure for supercapacitors is critical to accelerate the electrochemical kinetics process and thus promote the capacitance. Focusing on the flexible supercapacitor electrode, we synthesized a three-dimensional (3D) porous polypyrrole (PPy) film using a modified vapor phase polymerization method with the use of a porous template (CaCO). The porous design provided the PPy film with an improved surface area and pore volume.

Surface Tuning to Promote the Electrocatalysis for Oxygen Evolution Reaction: From Metal-Free to Cobalt-Based Carbon Electrocatalysts.

Heterogeneous electrocatalytic reactions only occur at the interface between the electrocatalyst and reactant. Therefore, the active sites are only necessary to be distributed on the surface of the electrocatalyst. Based on this motivation, here, we demonstrate a systematic study on surface tuning for a carbon-based electrocatalyst from metal-free (with the heteroatoms N and S, NS/C) to metal-containing surfaces (with Co, N, and S, CoNS/C).