Here, we investigate the spin-induced manipulation of orbitals using metasurfaces constructed from geometric phase elements. By carrying spin effects to orbital angular momentum, show experimentally transverse splitting between two spins in reciprocal space with metasurface, as a direct observation optical Hall effect, and an associated global rotation through effective orientations Such spin–orbit interaction metasurface definite topological charge can be geometrically interpreted recently...

Photocatalytic reduction of CO2 to value-added fuel has been considered be a promising strategy reduce global warming and shortage energy. Rational design synthesis catalysts maximumly expose the active sites is key activate molecules determine reaction selectivity. Herein, we synthesize well-defined copper-based boron imidazolate cage (BIF-29) with six exposed mononuclear copper centers for photocatalytic . Theoretical calculations show single Cu site including weak coordinated water...

Abstract The development of efficient and low‐cost bifunctional electrocatalysts for oxygen evolution reaction (OER) hydrogen (HER) is highly desirable electrochemical energy conversion. Herein, this study puts forward a new Co decorated N,B‐codoped interconnected graphitic carbon nanotube materials (Co/NBC) synthesized by direct carbonization cobalt‐based boron imidazolate framework. It demonstrated that the temperature can tune surface structure component resultant optimize...

Special asymmetric crystallization of porous framework materials from achiral precursors under urothermal conditions is successfully achieved by using an enantiopure liquid as a co-solvent and chirality induction agent, which provides new strategy for the synthesis homochiral containing only building blocks.

Two copper(I) halide-based coordination polymers, namely, [Cu3Cl2(Tipa)2]Cl (1, (Tipa = tris(4-(1H-imidazol-1-yl)phenyl)amine) and [Cu3I3(CuI)2(Tipa)3] (2), were obatined under the solvothermal reactions, respectively. Compound 1 with chain structure shows unique Cu···Cu interactions, C–H···Cl halogen hydrogen bonds, π···π stacking interactions. It also exhibits unusual mechanochromic photocatalytic properties on degradation of methylene blue (MB).

Development of chiral metal-organic frameworks (MOFs) for circularly polarized luminescence (CPL) is a challenging but important task. In this work, we report first example azapyrene-based MOF thin films [Zn2Cam2DAP]n grown on functionalized substrates (named SURchirMOF-4) CPL property. By using liquid-phase epitaxial layer-by-layer method, the resulted SURchirMOF-4 was constructed from camphoric acid and 2,7-diazapyrene ligand, which has high orientation homogeneity. The circular dichroism,...

Abstract The Cattaneo–Christov heat flux is first utilized to explore the transfer characteristics of Marangoni boundary layer flow in a copper–water nanofluid. driven by exponential temperature. Five different types nanoparticle shapes including sphere, hexahedron, tetrahedron, column and lamina are considered for nonlinear system partial differential equations reduced similarity transformations then solved numerically shooting method. It found that sphere has better enhancement than other...

A new helical carbon tube material has been prepared from epitaxial Cu-MOF coating on textile by calcination treatment.

Abstract In this work, monolithic, crystalline, porous, and oriented porphyrin thin films are grown using a novel van der Waals layer‐by‐layer (lbl) epitaxial growth protocol, yielding an unusual AB‐stacking motif of these interesting macrocycles units. Subsequently, surface‐mounted metal‐organic frameworks (SURMOFs) transformed by thermal treatment to yield well‐performing counter electrodes (CEs) for dye‐sensitized solar cells. During calcination, the heterocyclic metalated, compact,...

Bifacial dye-sensitized solar cells (DSSCs) are regarded as promising energy conversion devices with high efficiency and less resource consumption. In this work, a highly transparent efficient counter electrode (CE) is fabricated by introducing dispersed single Pt atoms doped into the van der Waals layer-by-layer epitaxially grown Zn-TCPP thin film (Zn-TCPP-Pt). The resulting Zn-TCPP-Pt CE has similar catalytic activity to commercial but shows better light transmission capacity in range of...

Separation of ethylene (C2H4) from ethane (C2H6) through one step is desirable but challenging in view their similar sizes and physical properties. Introduction pore partition agents into metal–organic frameworks (MOFs) endows materials with multivariate porous environments for gas adsorption separation. Here, we report a novel microporous boron imidazolate framework (BIF-108-Zn) that integrates both organic ligands extra-framework species as to divide the interconnected channels isolated...

The reversible photochromic molecule azobenzene was encapsulated into pores of metal organic frameworks (MOFs) using a modified liquid-phase epitaxial layer-by-layer method successfully. obtained thin film not only has an oriented, homogeneous with effective guest encapsulation but also isomerization between trans- and cis-azobenzene in MOF under UV visible light irradiation. Furthermore, the photoluminescent property studied for loaded HKUST-1 different temperature. This facile preparation...

Abstract Photocatalytic reduction of CO 2 to value‐added fuel has been considered be a promising strategy reduce global warming and shortage energy. Rational design synthesis catalysts maximumly expose the active sites is key activate molecules determine reaction selectivity. Herein, we synthesize well‐defined copper‐based boron imidazolate cage (BIF‐29) with six exposed mononuclear copper centers for photocatalytic . Theoretical calculations show single Cu site including weak coordinated...

This article describes a new magnetorheological fluid damper; its damping and stiffness are variable controllable through the compact structure of two units spring. The ability enables it to be used for more effective vibration control in wide-band excitation wave occasions. First, output force calculated theory. Then, magnetic field is simulated by finite element analysis. After prototype damper developed machined, damper’s performances tested hydraulic actuated MTS machine, including...

An accurate electro-hydraulic power steering system (EHPSS) model is essential to analyze dynamic performance and advanced nonlinear control. The main obstacle establish an the complex structure, including mechanism, valve controlled dual hydraulic-actuator, heavy duty tires. This paper constructs a suitable incorporating these parts, based on Lagrange equation describing trapezoid mechanism cylinder hydraulic dynamics, regarding resisting moment as external load. A simplified tire used...

Ultrathin 2D materials possess unique properties that translate to enhanced efficiency as electrocatalysts, stimulating research toward methodologies support their preparation. Herein, a two-step strategy is reported involves the preparation of new boron imidazolate framework (BIF-73) which subsequently utilized precursor yield crystalline nanosheet material (Fe@BIF-73-NS) via post-synthetic modification. This electrocatalytic stabilizes ultra-small (Fe2 O3 ) fragments resulting in an...

Abstract This paper aims to develop a surrogate model for dynamics analysis of magnetorheological damper (MRD) in the semi-active seat suspension system. An improved fruit fly optimization algorithm (IFOA) which enhances global search capability original FOA is proposed optimize structure back propagation neural network (BPNN) establishing model. MRD platform was fabricated generate experimental data feed IFOA-BPNN Intrinsic patterns about behind datasets have been discovered establish...

Finding effective means of protecting structures from dynamic hazards is a challenging task and has gained increasing significance. As for the seismically excited adjacent structures, an intelligent control strategy using magnetorheological dampers as connection devices considering soil–structure interaction presented. First, calculation model coupled structure–soil–structure interaction–magnetorheological damper system developed, motion equation calculating seismic responses then derived....

Heterometallic Sn–Ti oxo clusters functionalized with conjugated 1,10-phenanthroline ligands have been prepared, which exhibit distinct optical bandgaps and limiting properties influenced by π⋯π interactions.

Graphitic carbon nitride (g-C3N4) is an actively investigated metal-free photocatalyst for solar energy conversion. However, primary g-C3N4 usually exhibits limited utilization of visible light and fast combination photoexcited charge carriers, resulting in low photocatalytic H2 evolution activity. Defect-modified shows much enhanced activity owing to extended absorption as well efficient separation transfer. Here, the simultaneously containing nitrogen vacancies O-doping successfully...

Two Ag(I)-imidazolate compounds with distinct chain-like structures, namely, [Ag(dm-bim)]n (1, dm-bim = 5,6-dimethylbenzimidazole) and [Ag(m-bim)]n (2, m-bim 2-methylbenzimidazole), were synthesized structurally characterized, respectively. Compound 1 helical chains exhibited unique luminescence mechanochromism due to short Ag⋯Ag interactions (2.986 Å).