1,323 Result(s)
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Jun-**a **ao
Characterization and Evaluation of Materials
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Article
Asymmetric catalytic synthesis of chiral covalent organic framework composite (S)-DTP-COF@SiO2 for HPLC enantioseparations by normal-phase and reversed-phase chromatographic modes
A novel CCOF core–shell composite material (S)-DTP-COF@SiO2 was prepared via asymmetric catalytic and in situ growth strategy. The prepared (S)-DTP-COF@SiO2 was utilized as separation medium for HPLC enantiosepar...
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Article
The Reliability Impact of Bi Do** on the HfO2 Charge-Trap** Layer: A First-Principles Study
Hafnia has emerged as a promising material for charge-trap** memory. However, enhancing its trap** performance remains a significant research challenge. In this work, we investigate the influence of Bi imp...
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Article
Cu6GeWS8: A Two-Dimensional Quaternary Sulfide with Direct Bandgap and Ultralow Lattice Thermal Conductivity
Two-dimensional (2D) semiconductors are widely regarded as promising contenders for the next generation of optoelectronics and microelectronics, rendering the development of novel 2D semiconductors a focal poi...
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Article
Open AccessTunable interstitial and vacancy diffusivity by chemical ordering control in CrCoNi medium-entropy alloy
In this study, we utilized a quantitative atomistic analysis approach to investigate the impact of chemical ordering structures on the diffusion behavior of interstitials and vacancies within the CrCoNi medium...
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Article
Productions of RONS with Duty Ratio in Atmospheric Pressure Plasma Jets
In this work, the productions of reactive oxygen and nitrogen species (RONS) with duty ratio in atmospheric pressure plasma jet was studied. This study uses the duty ratio comprising an on-time duration with a...
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Article
A new α-CBC polymer with elevated heat-resistance prepared via catalytic hydrogenation of α-methylstyrene-butadiene-styrene terpolymer over NixPd/NCNT@MFN monolithic catalyst
Elevating the heat resistance of the highly transparent cyclic block copolymer (CBC) is of great significance for the synthesis of high-performance polymers. In this study, a novel bimetallic NixPd/NCNT@MFN catal...
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Article
Effects of {10-12} Twin Boundary on Nanotribological Behavior of Pure Mg: A Molecular Dynamics Simulation
Twinning is a key plastic-deformation mechanism in magnesium (Mg) and Mg alloys. However, the effect of {10-12} twin boundaries on their nanotribological behavior remains unexplored in molecular dynamics (MD) ...
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Article
Study of the Propane Detonation Spraying under Different Gun Structures
Detonation spraying is a technique that uses the high-temperature, high-velocity detonation waves to deposit the molten metal particles onto the target surface. The effect of the detonation spraying is influen...
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Article
Effect of Extrusion Temperature on the Microsturcture in a Bismuth Modified Magnesium Alloy
Dilute Mg–Bi alloy is a recently developed alloy system with good extrudability and ductility. However, there is a limited understanding of the influence of extrusion temperature on its microstructure when ext...
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Article
The Effect of Blending Ratio on the Structure and Properties of the PPR/PS In situ Fiber Reinforced System Prepared by Multi-Flow Vibration Injection Molding
To enhance the mechanical properties of polypropylene random copolymer (PPR), polystyrene (PS) with four different contents were added to the PPR matrix through melt blending. Subsequently, using the Multi-Flo...
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Article
Investigation on UV-curing Reprocessable Thermosets Bearing Hindered Urea Bonds and Their Composites with Modified Zinc Oxide Nanoparticles
In this study, a series of hindered urea bond (HUB) containing polyurethane-urea methacrylate prepolymers and a none HUB containing polyurethane methacrylate prepolymer were prepared using isobornyl methacryla...
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Article
In Situ Microscale Observation of FeOx–SiO2 Interfacial Reaction
Promoting the interfacial reaction between iron oxide (FeOx) particles generated from concentrate and silica-flux in the reaction shaft is essential to make the slag with good flowability and ensure matte separat...
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Article
A Fluorine-Functionalized 3D Covalent Organic Framework with Entangled 2D Layers
Constructing three dimensional (3D) covalent organic frameworks (COFs) through the entanglement of two dimensional (2D) nets is a promising but underdeveloped strategy. Herein, we report the design and synthes...
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Article
Fabrication of lightweight, tough polypropylene composite foams: effects of nucleating agent structure on the foaming behavior and tensile property of polypropylene foams
The type and structure of nucleating agents have an important influence on the properties of the final foam as well as on the nucleation of the bubbles during injection foaming. In this study, a simple melt bl...
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Article
Open AccessEvaluation of Sensitization Behaviors on the Heat-Affected Zone of Austenitic Stainless Steel Weld by Thermal Cycles of Actual Multi-pass Welding
The sensitization behavior of the welding heat affected zone (HAZ) in austenitic stainless steels (SSs) was investigated through simulated thermal cycles emulating actual multi-pass welding processes using the...
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Article
Effect of metallic copper on the electrothermal properties of carbon nanofibers
Cu2+/polyacrylonitrile composite fibers were prepared by electrospinning, and then Cu/carbon nanofibers (denoted as Cu/CNF-X; X = Cu content, 0, 3, or 5 wt%) were formed by calcining them. The effects of Cu2+ con...
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Article
Hydrogen bonding network formation in epoxidized natural rubber
Reversible networks of epoxidized natural rubber (ENR) mixed with dicarboxylic acid were studied. ENR is a bio-based polymer, commercially available, and capable of sulphur vulcanisation. In addition, ENR has ...
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Article
Chiral-induced synthesis of chiral covalent organic frameworks core-shell microspheres for HPLC enantioseparation
Two chiral covalent organic frameworks (CCOFs) core-shell microspheres based on achiral organic precursors by chiral-induced synthesis strategy for HPLC enantioseparation are reported for the first time. Using...
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Article
Etching of Ag nanoparticles triggered bidirectional regulation for electrochemiluminescence ratiometric immunoassay
A highly efficient ratiometric electrochemiluminescence (ECL) immunoassay was explored by bidirectionally regulating the ECL intensity of two luminophors. The immunoassay was conducted in a split-type mode con...
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Article
Open AccessRotational magnetoelectric switching in orthorhombic multiferroics
Controlling the direction of ferromagnetism and antiferromagnetism by an electric field in single-phase multiferroics will open the door to the next generation of devices for spintronics and electronics. The t...
