High-performance heterostructure NaMnO-NaMnO as a lithium-free cathode for lithium-ion batteries.

In this investigation, a lithium-free cathode material, NaMnO-NaMnO, was synthesized by the solid phase method. The intercalation mechanism and partial phase transformation mechanism of NMO600 were clarified by X-ray diffraction and impedance. The design of the heterostructure is favourable for improving the lithium ion storage of NMO600, which can deliver a discharge capacity of 83.

A polar oxyhalogen-vanadate compound (CNHCl)VOCl with optical and two-staged dielectric switch behavior.

Polar organic-inorganic hybrid materials have been applied in ferroelectricity, as well as in devices based on nonlinear optical and piezoelectricity properties. Here, we used a rectangular pyramid structure of [VOCl4]2- to construct a polar compound (C5NH13Cl)2VOCl4 (1). Compound 1 crystallized in the monoclinic P21 space group.

Magnetodielectric Response in a Layered Mixed-Valence Ferrimagnetic Molecular Compound.

The magnetodielectric effect is closely related to multiferroic or magnetoelectric coupling; thus, it can be used to predict magnetoelectric coupling, especially in compounds with special magnetic properties. The magnetodielectric response can often be used to predict many interesting and meaningful physical coupling mechanisms. Therefore, fabricating magnetodielectric materials is an effective step toward the development of magnetoelectric materials.

Thermal hysteresis induced by external pressure in a 3D Hofmann-type SCO-MOF.

Two isostructural 3D Hofmann-type frameworks, [Fe(dbdpe)M(CN)]·4HO (M = Pt for 1 and Pd for 2), were synthesized based on a bis-monodentate ligand dbdpe (1,2-dibromo-1,2-di(pyridin-4-yl)ethane). Both compounds underwent similar one-step incomplete spin crossover (SCO) processes in the presence of lattice water molecules, i.e.

A breakthrough in the intrinsic multiferroic temperature region in Prussian blue analogues.

Thin films of [(Fe Cr )][Cr(CN)]·HO ( ≈ 0.30-0.35, ≈ 1.

LiNaBO: Featuring Unprecedented BO Fundamental Building Block and Deep-UV Cutoff Edge.

In the LiO-NaO-BO system, LiNaBO has been successfully synthesized, which crystallizes in monoclinic space group C2 /c (No. 15), a = 14.153(3) Å, b = 12.

Active performance of tetrahedral groups to SHG response: theoretical interpretations of Ge/Si-containing borate crystals.

As potential candidates for deep-UV nonlinear optical (NLO) crystals, borosilicates and borogermanates, which contain NLO-active groups such as B-O, Si-O and Ge-O, have fascinated many scientists. The crystal structures, electronic structures and optical properties of seven borates in different B/R (R = Si, Ge) ratios have been studied using DFT methods. Through the SHG-density, we find that besides the recognized contribution of the π-conjugation configuration of BO3 to second harmonic generation (SHG), the tetrahedra have a non-negligible influence.

Versatile Coordination Mode of LiNaB8O13 and α- and β-LiKB8O13 via the Flexible Assembly of Four-Connected B5O10 and B3O7 Groups.

Three new alkali-metal mixed borates, LiNaB8O13, α-LiKB8O13, and β-LiKB8O13, containing a (3)∞[B8O13] three-dimensional network have been successfully synthesized. Their fundamental building block is [B8O16](8-) formed by the vertex-sharing [B5O10](5-) and [B3O7](5-) groups, which are topologically identical when they are considered as four-connected nodes. The viewpoints give us a feasible way to investigate the versatile structure assembly of borates with a complex network.