Magnetic frustration results from competing magnetic interactions and leads to unusual ground states, ranging from non-collinear magnetic orders to spin liquids (SLs), opening the path to new physics and emerging properties. We report the engineered magnetic interaction design and synthesis of the new ternary nitride MnTa2N4 with a normal spinel structure, where the magnetic cations Mn2+ occupy exclusively

Pyridinedicarboxamide (PDCA) ligands have been widely integrated into different polymer chemistries and provided promising self-healing properties in bulk upon adding specific metal ions. However, their application in the development of synthetic hydrogels is limited due to the lack of clear kinetics and thermodynamic data. To fill this gap, we study the dynamics of polymer hydrogels formed by the

Zn-based materials represent a class of low-cost, promising electrocatalysts for CO2 reduction but the tuning of catalytic activity and selectivity by varying composition and nanostructure is a challenge. Herein, a ZnTe/ZnO heterostructured material supported on N-doped carbon nanosheets (ZnTe/ZnO@C) is prepared with a novel ZnTe metal–organic framework (MOF). The hybrid material exhibits greatly enhanced

In their recent article, Owen et al. published a new data set for ZnS quantum dots, linking an optical band gap with a nanocrystal diameter. (1) Such band gap/size data sets have been very helpful in the field of quantum dots to build calibration or sizing curves. These sizing curves are widely used to quickly determine nanocrystal sizes from absorption measurements, and they have been reported for

Solid-oxide proton-conducting materials are key components for hydrogen-based energy devices, including solid-oxide fuel cells, electrolyzers, hydrogen separation membranes, and novel electronic computing devices. The further development of these devices requires proton-conducting materials with high proton conductivity and good stability with hydrogen and water under the device-operating environment

Exploring the generation and transfer of chirality at different hierarchical levels has always been a significant research subject. The present contribution reports our success in inducing and regulating the helical chirality of achiral macromolecules (racemic polyacetylene) by using a chiral helical macromolecule (chiral polylactide); helical chirality is sufficiently transferred between two types

Degradation of polymer electrolyte membrane fuel cell (PEMFC) systems has emerged as a critical issue. A thin metal oxide layer coated with Pt/carbon via ALD (atomic layer deposition) is one of the potential approaches for preserving electrochemical activity; however, the exact interfacial effects of metal oxide on enhancing PEMFC durability are unclear. Herein, interfacial engineering of the TiO2

Current nucleation models propose manifold options for the formation of crystalline materials. Exploring and distinguishing between different crystallization pathways on the molecular level however remain a challenge, especially for complex porous materials. These usually consist of large unit cells with an ordered framework and pore components and often nucleate in complex, multiphasic synthesis media

A reproducible synthesis strategy for ultracrystalline K,Na-aluminosilicate JBW zeolite is reported. The synthesis uses a Na-based hydrated silicate ionic liquid (HSIL) as a silicon source and gibbsite as the aluminum source. 27Al and 23Na NMR spectra exhibit crystalline second-order quadrupole patterns in the hydrated as well as dehydrated states and distinct resonances for different T-sites demonstrating

Doping of organic semiconductors is crucial for tuning the charge-carrier density of conjugated polymers. The exchange of more than one electron between a monomeric dopant and an organic semiconductor allows the polaron density to be increased relative to the number of counterions that are introduced into the host matrix. Here, a molybdenum dithiolene complex with a high electron affinity of 5.5 eV

Using hydrated silicate ionic liquids, phase selection and framework silicon-to-aluminum ratio during inorganic zeolite synthesis were studied as a function of batch composition. Consisting of homogeneous single phasic liquids, this synthesis concept allows careful control of crystallization parameters and evaluation of yield and sample homogeneity. Ternary phase diagrams were constructed for syntheses

The original article had an error in the Table of Contents (TOC) and Abstract figure. The y-axis label has to be changed from “Voltage (V)” to “Specific capacity (mA h g–1)” as given in the corrected TOC figure below. We note that this error has no impact in the results and final conclusions. However, the correct image should be displayed for posterity. The authors are sorry for the error and any consequent

Kagome networks of ferromagnetically or antiferromagnetically coupled magnetic moments represent important models in the pursuit of a diverse array of novel quantum and topological states of matter. Here, we explore a family of Cu2+-containing metal–organic frameworks (MOFs) bearing kagome layers pillared by ditopic organic linkers with the general formula Cu3(CO3)2(x)3·2ClO4 (MOF-x), where x is 1

Solar H2O2 produced by O2 reduction provides a green, efficient, and ecological alternative to the industrial anthraquinone process and H2/O2 direct-synthesis. We report efficient photocatalytic H2O2 production at a rate of 73.4 mM h–1 in the presence of a sacrificial donor on a structurally engineered catalyst, alkali metal-halide modulated poly(heptazine imide) (MX → PHI). The reported H2O2 production

Perovskite-type solid-state electrolytes, Li3xLa2/3–xTiO3 (LLTO), are considered among the most promising candidates for the development of all-solid-state batteries based on lithium metal. Their high bulk ionic conductivity can be modulated by substituting part of the atoms hosted in the A- or B-site of the LLTO structure. In this work, we investigate the crystal structure and the long-range charge

The purification of light olefins is one of the most important chemical separations globally and consumes large amounts of energy. Porous materials have the capability to improve the efficiency of this process by acting as solid, regenerable adsorbents. However, to develop translational systems, the underlying mechanisms of adsorption in porous materials must be fully understood. Herein, we report