Magnetoelectric composite thin films hold substantial promise for applications in novel multifunctional devices. However, there are presently shortcomings both the extensively studied bilayer epitaxial (2-2) and vertically architectured nanocomposite (1-3) film systems, restricting their applications. Here we design a growth strategy to fabricate an heterostructure with magnetic quasiparticles (0) embedded ferroelectric matrix (3) by alternately growing layers within film. The new...

In recent years, antiferroelectric materials have been attracting considerable attention as energy storage capacitors due to their potential applications in pulsed power systems. this work, Pb0.88Ca0.12ZrO3 (PCZ) thin films were prepared via chemical solution deposition and annealed using rapid thermal annealing. The microstructures of PCZ controlled annealing temperature, the effects on electric properties performance systematically studied. Our results indicate that at 550 °C crystallized...

Microstructuring of the PEDOT–CNT composite for microsupercapacitors with high rate capability and excellent cycling stability.

Abstract In the hydrogen evolution reaction (HER), energy‐level matching is a prerequisite for excellent electrocatalytic activity. Conventional strategies such as chemical doping and incorporation of defects underscore complicated process controlling species defect concentration, which obstructs understanding function band structure in HER catalysis. Accordingly, 2H‐MoS 2 1T‐MoS are used to create nanodevices address Interestingly, it found that with modulated Fermi level under application...

We report growth of various phase architectures self-assembled BiFeO3-CoFe2O4 (BFO-CFO) thin films on differently oriented SrTiO3 (STO) substrates. CFO forms segregated square, stripe, and triangular nanopillars embedded in a coherent BFO matrix (001)-, (110)-, (111)-oriented STO substrates, respectively. Nanostructures with an aspect ratio up to 5:1 prominent magnetic anisotropy were obtained both (001) (110) along out-of-plane in-plane directions. Magnetic easy axis rotation from...

Two-dimensional (2D) hexagonal boron nitride (h-BN) is one of the most promising materials for many technological applications ranging from optics to electronics. In past years, a property-tunable strategy that involves construction electronic structures h-BN through an atomic-level design point defects has been in vogue. The imported during material synthesis or functionalization by defect engineering can endow with new physical characteristics and applications. this Perspective, we survey...

The oxygen-evolving center (OEC) in photosynthesis is a unique biological Mn4CaO5 cluster catalyzing the water-splitting reaction. A great current challenge to achieve robust and precise mimic of OEC laboratory. Herein, we report synthetic Mn4XO4 clusters (X = calcium, yttrium, gadolinium) that closely resemble with regard main metal-oxide core peripheral ligands, as well oxidation states four Mn ions redox potential cluster. We demonstrate rare-earth elements can structurally replace...

Abstract The natural Mn 4 Ca cluster in photosystem II serves as a blueprint to develop artificial water‐splitting catalysts for the generation of solar fuel photosynthesis. Although significant advances have recently been achieved, it remains great challenge prepare robust clusters that precisely mimic structure and function biological catalyst. Herein, we report isolation structural characterization two CaO complexes with polar solvent molecules, acetonitrile or N,N‐dimethylformamide,...

Oxide heterostructures with the broken translational symmetry often trigger a two-dimensional quantum confinement and associated unique electronic properties that cannot be observed in bulk constituents. Particular interest is devoted to formation of electron gas (2DEG) at heterointerfaces between two insulators, which offers fertile ground for fabricating advanced devices. Here, we combine atomic force microscopy, transmission atomistic first-principles calculations demonstrate (100)...

Six undescribed lindenane sesquiterpenoid dimers (LSDs), shimianolides A-F (1-6), were isolated from the whole plants of Chloranthus holostegius var. shimianensis. Shimianolides A-C (1-3) represent an unprecedented class LSDs, distinguished by a highly fused 3/5/6/6/6/5/6/6/5/3 decacyclic scaffold. All isolates evaluated for their inhibitory effects on LPS-induced NO production in RAW264.7 macrophages and cytotoxicity against five human cancer cell lines. Compound 4 exhibited moderate HL-60...

Unique three-dimensional Co₃O₄/Pt nanonetworks based microsupercapacitor is constructed by controllable physical vapor deposition combined with rapid thermal annealing, showing a high volume capacitance.

The oxygen-evolving center (OEC) in photosystem II (PSII) of plants, algae and cyanobacteria is a unique natural catalyst that splits water into electrons, protons dioxygen. crystallographic studies PSII have revealed the OEC an asymmetric Mn4CaO5-cluster. understanding structure-function relationship this Mn4CaO5-cluster impeded mainly due to complexity protein environment lack rational chemical model as reference. Although it has been great challenge for chemists synthesize laboratory,...

An Al2O3–TiO2 amorphous composite coating with a thickness of 100–120 μm was fabricated on China low activation martensitic steel (CLAM steel) by oxygen acetylene flame spraying technology and the laser in-situ reaction method. We investigated microstructures mechanical properties after liquid lead-bismuth eutectic (LBE) alloy corrosion under different temperatures for 300 h found that temperature LBE had no observable effect microstructure chemical phase coatings. However, (micro-hardness...

Artificial superlattices have demonstrated many unique phenomena not found in bulk materials. For this investigation, SrTiO3/SrRuO3 paraelectric/metallic with various stacking periods were synthesized via pulsed laser deposition. A robust room-temperature ferroelectric polarization (∼46 μC/cm2) was the 2 unit cell (u.c.) thick SrRuO3 layers, despite fact that neither SrTiO3 nor is inherently ferroelectric. Results obtained from atomically resolved elemental mapping and X-ray photoelectron...

The ferroelectric domain and local structures of Na1/2Bi1/2TiO3-x%BaTiO3 (NBT-BT) 0.14 at. %Mn substituted (Mn:NBT-BT) single crystals with x=5.5 near a morphotropic phase boundary have been investigated by transmission electron microscopy. Increased ordering enhanced in-plane octahedral tilting were observed for Mn:NBT-BT compared NBT-BT. Bragg-filtered lattice images revealed that the size in-phase tilt domains on order 2 to 8 nm, tendency alignment along {110}.

The growth mechanism of a BiFeO3 layer deposited on self assembled (0.65) BiFeO3-(0.35) CoFe2O4 (BFO-CFO) composite thin films was studied. Epitaxial and self-assembled BFO-CFO were SrTiO3 (111) substrates by pulsed laser deposition subsequently used as seed for the an additional BFO layer. x-ray line scans showed heterostructures highly epitaxial. Cross-sectional scanning electron microscopy focused ion beam images revealed top grew preferentially from nanopillars in films, thus,...

Developing metal–organic framework (MOF) adsorbents with excellent performance and robust stability is of critical importance to reduce CO2 emissions yet challenging. Herein, a ultra-microporous MOF, Cu(bpfb)(bdc), mixed ligands N, N′-(1,4-phenylene)diisonicotinamide (bpfb), 1,4-dicarboxybenzene (bdc) was delicately constructed. Structurally, this material possesses double-interpenetrated frameworks formed by two staggered, independent frameworks, resulting in types narrow ultra-micropores...