Three-Dimensionally Ordered Macro/Mesoporous NbO/NbN Heterostructure as Sulfur Host for High-Performance Lithium/Sulfur Batteries.

The severe shuttle effect of soluble polysulfides hinders the development of lithium-sulfur batteries. Herein, we develop a three-dimensionally ordered macro/mesoporous (3DOM) NbO/NbN heterostructure, which combines the strong adsorption of NbO and remarkable catalysis effect of NbN by the promotion "adsorption-transformation" mechanism in sulfur reaction. Furthermore, the high electrocatalytic activity of NbN facilitates ion/mass transfer during the charge/discharge process.

Efficiency-Tunable Single-Component White-Light Emission Realized in Hybrid Halides Through Metal Co-Occupation.

Organic-inorganic hybrid metal halides have attracted widespread attention as emerging optoelectronic materials, especially in solid-state lighting, where they can be used as single-component white-light phosphors for white light-emitting diodes. Herein, we have successfully synthesized a zero-dimensional (0D) organic-inorganic hybrid mixed-metal halide (Bmpip)PbSnBr (0 < < 1, Bmpip = 1-butyl-1-methyl-piperidinium, CHN) that crystallizes in a monoclinic system in the 2/ space group. Pb and Sn form a four-coordinate seesaw structure separated by organic cations forming a 0D structure.

Nonlinear-Optical Crystal RbYBO with Condensed BO Blocks That Exhibits an Intriguing Structural Arrangement and a Short Ultraviolet Absorption Edge.

Nonlinear-optical (NLO) crystals, which can regulate the laser wavelength through a cascading second-harmonic-generation technique, have been widely utilized in the field of optoelectronics. In this work, we grew the NLO borate crystal RbYBO (RYBO) using the spontaneous crystallization method. RYBO crystallizes in a chiral trigonal space group of 32 with a new type of structural arrangement built from Y-O short chains and BO groups.

Nitrogen defects-rich porous graphitic carbon nitride for efficient photocatalytic hydrogen evolution.

Graphitic carbon nitride (CN) is considered as a promising photocatalyst for solar energy conversion. However, low specific surface area and fast electrons and holes recombination restrict the photocatalytic applications of CN material. Herein, a nitrogen defect-rich and highly porous CN nanostructure (CN-LT) was prepared by combining two strategies, i.