Synergistic Enhancement of Energy Storage Performance in NaNbO-Based Lead-Free Relaxor Ferroelectrics via Weakly Coupled Relaxation Behavior.

Advancements in pulsed electronic power systems depend significantly on high-performance dielectric energy storage ceramics. Lead-free NaNbO-based energy-storage ceramics are important materials for next-generation pulsed power capacitors owing to their large polarization and bandgaps. However, the high energy loss caused by the antiferroelectric-ferroelectric phase transition leads to low recoverable energy storage density and efficiency, which hinders its practical application.

Facile Preparation of MCM-41/AgO Nanomaterials with High Iodide-Removal Efficiency.

The elimination of iodide (I) from water is a tough subject due to its low adsorption tendency and high mobility. In this work, MCM-41/AgO nanomaterials were prepared, characterized, and employed to adsorb I from water. The AgO nanoparticles were dispersed homogeneously in the pores or at the surface of the MCM-41 support, and the AgO nanoparticles in the pores had small particles sizes due to the confinement of the mesoporous channel.