A5101775139- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Asymmetric Synthesis and Catalysis
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Catalysts for Methane Reforming
- Covalent Organic Framework Applications
- 2D Materials and Applications
- Graphene research and applications
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Advanced Synthetic Organic Chemistry
- MXene and MAX Phase Materials
- Synthetic Organic Chemistry Methods
- Electrocatalysts for Energy Conversion
- Advanced Nanomaterials in Catalysis
- Supercapacitor Materials and Fabrication
- Chemical Synthesis and Analysis
- Microbial Natural Products and Biosynthesis
- Catalysis and Oxidation Reactions
- CO2 Reduction Techniques and Catalysts
- Metal-Organic Frameworks: Synthesis and Applications
- Perovskite Materials and Applications
- Supramolecular Self-Assembly in Materials
- High-Temperature Coating Behaviors
National Clinical Research Center for Digestive Diseases
2024-2025
Peking University
2024-2025
Northeast Agricultural University
2025
King University
2025
National Clinical Research
2025
Northeastern University
2022-2024
Tianjin University
2016-2024
Harbin Institute of Technology
2019-2024
Ruijin Hospital
2024
Shanghai Jiao Tong University
2024
Passivated phosphorene nanoribbons, armchair (a-PNR), diagonal (d-PNR), and zigzag (z-PNR), were investigated using density functional theory. Z-PNRs demonstrate the greatest quantum size effect, tuning bandgap from 1.4 to 2.6 eV when width is reduced 26 6 Å. Strain effectively tunes charge carrier transport, leading a sudden increase in electron effective mass at +8% strain for a-PNRs or hole +3% z-PNRs, differentiating (mh*/me*) ratio by an order of magnitude each case. Straining d-PNRs...
A new family of dipeptide-based chiral phosphines was designed and prepared. d-Thr-l-tert-Leu-derived catalyst 4c promoted [3 + 2] cycloaddition allenoates to α-substituted acrylates in a regiospecific stereoselective manner, furnishing functionalized cyclopentenes with quaternary stereogenic centers high yields excellent enantioselectivities.
Abstract Solar-driven CO 2 reduction by abundant water to alcohols can supply sustainable liquid fuels and alleviate global warming. However, the sluggish oxidation reaction has been hardly reported be efficient selective in conversion due fast charge recombination. Here, using transient absorption spectroscopy, we demonstrate that microwave-synthesised carbon-dots ( m CD) possess unique hole-accepting nature, prolonging electron lifetime t 50% ) of carbon nitride (CN) six folds, favouring a...
Covalent triazine-based frameworks (CTFs), a group of semiconductive polymers, have been identified for photocatalytic water splitting recently. Their adjustable band gap and facile processing offer great potential discovery development. Here, we present series CTF-0 materials fabricated by two different approaches, microwave-assisted synthesis an ionothermal method, driven visible-light irradiation. The material (CTF-0-M2) synthesized microwave technology shows high activity hydrogen...
Direct solar-driven methane (CH4) reforming is highly desirable but challenging, particularly to achieve a value-added product with high selectivity. Here, we identify synergistic ensemble effect of atomically dispersed copper (Cu) species and partially reduced tungsten (Wδ+), stabilised over an oxygen-vacancy-rich WO3, which enables exceptional photocatalytic CH4 conversion formaldehyde (HCHO) under visible light, leading nearly 100% selectivity, very yield 4979.0 μmol·g-1 within 2 h, the...
Cu/ZnO/Al2O3 catalysts are widely used in methanol synthesis due to their low cost and high catalytic activity. The structural surface characteristics of Cu crucial the formation active sites for production. In this study, a series methods employed modulate catalyst structure efficiency hydrogenation CO2 methanol. A correlation activity with Cu0 area particle sizes has been established. derived from hydrotalcite-like precursor (CZA-LDH) exhibits maximum specific area, smallest size,...
A fast one: The title reaction proceeds in the presence of 5 mol % catalyst 1, and is complete within an hour. 2-alkyl- 2-aryl-substituted 3-pyrroline products are obtained good yield with high enantioselectivity. application method to concise formal synthesis (+)-trachelanthamidine also demonstrated. Boc=tert-butoxycarbonyl, M.S.=molecular sieves, TBDPS=tert-butyldiphenylsilyl. Detailed facts importance specialist readers published as "Supporting Information". Such documents peer-reviewed,...
Highly enantioselective [4 + 2] annulation of activated alkenes with α-substituted allenoates catalyzed by amino acid-based bifunctional phosphines has been developed for the first time, which provides an easy access to optically enriched functionalized cyclohexenes. In particular, 3-spirocyclohexene-2-oxindoles were prepared in high yields and excellent enantioselectivities.
A well-crystallized α-FeOOH (a goethite widespread in nature) shows an efficient and stable oxygen evolution reaction by removing surface chemically adsorbed water.
Abstract Layered van der Waals heterostructures have attracted considerable attention recently, due to their unique properties both inherited from individual two‐dimensional (2D) components and imparted interactions. Here, a novel few‐layer MoS 2 /glassy‐graphene heterostructure, synthesized by layer‐by‐layer transfer technique, its application as transparent photodetectors are reported for the first time. Instead of traditional Schottky junction, coherent ohmic contact is formed at...
Copper‐based ternary bimetal chalcogenides have very promising potential as multifunctional theragnosis nanoplatform for photothermal treatment of tumors. However, the design and synthesis such an effective platform remains challenging. In this study, hydrophilic CuCo 2 S 4 nanocrystals (NCs) with a desirable size ≈10 nm are synthesized by simple one‐pot hydrothermal route. The as‐prepared ultrasmall NCs show: 1) intense near‐infrared absorption, which is attributed to 3d electronic...
A highly enantioselective [3 + 2] annulation of MBH carbonates and maleimides catalyzed by chiral phosphines has been developed. In the presence 5 mol % l-Thr-l-Val-derived phosphine 6, functionalized bicyclic imides were prepared in excellent yields, with high diastereoselectivities nearly perfect enantioselectivities.
Molybdenum sulfide, MoSx, is considered as attractive hydrogen evolution catalyst since it free of noble metals and shows a low overpotential. Especially, amorphous molybdenum sulfide has attracted attention because its high catalytic activity. However, the mechanism reaction not yet fully understood. Therefore, in our study, layers MoSx were deposited by reactive magnetron sputtering, varying substrate temperature range from room (RT) to 500 °C. The morphology structure films change...
Controlling the selectivity of CO2 hydrogenation by catalysis is a fundamental challenge. This study examines interrelation between active sites and reaction pathways in Ni-catalyzed hydrogenation. The alloying Ni with Zn to charged (Niσ––Znσ+) modifies electronic structure d-band center, weakens interaction CO/H2, preferentially catalyzes reverse water gas shift CO thermodynamically favored methanation pathway switched off. dual can stabilize activated species η2(C, O) bridge configuration,...
A Cu-based catalyst has prospects for practical use in selective hydrogenation of CO2 to methanol. But the catalyst's structural complexity renders elucidation nature active sites a challenge. This work reports CuGaZrOx solid solutions with tunable Cu size scales and synergetic interactions between methanol synthesis. Atomically dispersed species (Cu1–O3) adjacent Zr site contribute enhanced capacity adsorption/activation, Ga are primarily responsible H2 dissociation over solution isolated...
Nickel-based catalysts are the most promising selection for CO2 methanation. But, it is challenging monometallic Ni to achieve high conversion at low temperature. This study develops ceria-supported bimetallic Ni–Ru that highly efficient low-temperature A small amount of Ru (0.2 wt %) addition enables intermetal interaction, and enhances dispersion particles with a more active surface, consequently boosting catalytic capacity hydrogen activation CO adsorption. The exhibit than 3-fold rate...
Abstract Utilization of electro‐responsive biomaterials with antibacterial properties is advantageous for facilitating septic wound healing and tissue regeneration. However, the dose‐response effects electrical stimuli from these materials against bacteria are not rigorously characterized, achieving synergy bactericidal pro‐regenerative remains a major challenge. Here, graded series flexible BaTiO 3 /P(VDF‐TrFE) electroactive nanocomposite membranes (EMs) developed varying surface charge...
Abstract Graphene on hydrogen terminated monolayer nanodiamond heterostructures provides a new way to improve carrier transport characteristics of the graphene, offering up 60% improvement when compared with similar graphene SiO 2 /Si substrates. These offers excellent current-carrying abilities whilst prospect fast, low cost and easy methodology for device applications. The use ND monolayers is also compatible technology support large area films. nature C-H bonds between H-terminated NDs...
Synthesis of a highly efficient HER catalyst with low Pt that exceeds the efficiency commercial 20 wt% Pt/C.
Abstract Due to the quantum confinement effect, atomically thin two-dimensional (2D) monolayer materials possess distinct characteristics from their corresponding bulk materials, which have received wide attention science and industry. Among all 2D elemental with simplest components are most striking. As an emerging group-VIA material, tellurene exhibits many exciting fundamental properties, such as chemical mechanical stabilities, bandgap high carrier mobilities compared phosphorene,...