A5100689412- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supercapacitor Materials and Fabrication
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Advancements in Battery Materials
- 2D Materials and Applications
- Corrosion Behavior and Inhibition
- Advanced battery technologies research
- MXene and MAX Phase Materials
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Luminescence and Fluorescent Materials
- Nanocluster Synthesis and Applications
- Carbon and Quantum Dots Applications
- Plasma Applications and Diagnostics
- Multiferroics and related materials
- Advanced Sensor and Energy Harvesting Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Advanced Cellulose Research Studies
- Pickering emulsions and particle stabilization
- Advanced Materials and Mechanics
- Epoxy Resin Curing Processes
- Mass Spectrometry Techniques and Applications
- Spectroscopy and Quantum Chemical Studies
Beijing University of Chemical Technology
2024
Zhengzhou University of Light Industry
2024
University of Illinois Urbana-Champaign
2023
Nanjing Forestry University
2022
Beijing Institute of Technology
2019-2022
Southeast University
2021
Tianjin University
2019
Dalian Minzu University
2017-2019
Chinese Academy of Sciences
2015-2019
Dalian Institute of Chemical Physics
2019
A major challenge in the "bottom-up" solvothermal synthesis of carbon dots (CDs) is removal small-molecule byproducts, noncarbonized polyamides, or other impurities that confound optical properties. In previously reported benzene diamine-based CDs, observed fluorescence signal already has been shown to arise from free small molecules, not nanosized carbonized dots. Here we have unambiguously identified species CDs starting with several isomers diamine by directly matching their NMR, mass...
The assembly of two-dimensional (2D) nanomaterials into a three-dimensional (3D) aerogel can effectively prevent the problem restacking. Here, nanofiber-reinforced MXene/reduced graphene oxide (rGO) conductive is prepared via hydrothermal reduction GO using pyrrole and in situ composite with MXene. Combined low-content 2D nanosheets (MXene rGO) as "brick", polypyrrole "mortar", one-dimensional (1D) nanofiber "rebar", strong interfacial cross-linking MXene rGO realized through covalent...
High-order harmonic generation (HHG) from hexagonal boron nitride is simulated by solving extended multiband semiconductor Bloch equations under strong laser fields. By changing the angle of polarization with respect to crystal orientation, we find that spectra present a double-plateau structure and HHG dominantly emitted along \ensuremath{\Gamma}-M direction in first plateau, but special anisotropic distribution observed secondary plateau. In-depth analyses reveal two plateaus originate...
Direct growth of graphene on dielectric substrates is a prerequisite to the development graphene-based electronic and optoelectronic devices. However, current synthesis methods always involve metal contamination problem, direct production patterns still remains unattainable challenging. Herein, semiconducting, germanium (Ge)-assisted, chemical vapor deposition approach proposed produce monolayer directly arbitrary substrates. By prepatterning catalytic Ge layer, with desired pattern can be...
In this study, the controllable preparation of ZnCo2O4 with different morphologies in a reaction system and orderly weaving these into special structures was demonstrated, which might be impossible to achieve using other methods; herein, we successfully prepared dual-morphology ZnCo2O4/N-doped reduced graphene oxide/Ni foam substrate (ZNGN) electrode by ultrasonic processing, one-step hydrothermal method subsequent annealing process for high-performance supercapacitors. At first, nanosheet...
Directly synthesize vertical graphene nano-petals (VGNPs) on SiO<sub>2</sub> substrate by PACVD, the growth temperature is significantly reduced and reaches at 550 °C. We utilize unique topography of VGNPs to investigate ammonia gas sensitivity realize ppt level detection ability.
Low dimensional ferroelectrics are highly desired for applications and full of exotic physics. Here a functionalized MXene Hf$_2$CF$_2$ monolayer is theoretically studied, which manifests nonpolar to polar transition upon moderate biaxial compressive strain. Accompanying this structural transition, metal-semiconductor occurs. The in-plane shift unilateral fluorine layer leads polarization pointing out-of-plane. Such ferroelectricity unconventional, similar the recently-proposed...
We investigate the dependence of charge transfer on intensity driving laser field when SiO2 crystal is irradiated by an 800 nm laser. It surprising that direction undergoes a sudden reversal exceeds critical values with different carrier-envelope phases. By applying quantum-trajectory analysis, we find Bloch oscillation plays important role in solids. Also, study interaction strong gallium nitride (GaN), which widely used optoelectronics. A pump-probe scheme applied to control quantum...
In this work, a kind of side chain liquid crystalline poly(urethane-acrylate)s was synthesized by free polymerization based on self-made monomers, and series polyurethane/shape memory polyurethane composite membranes were prepared electrospinning. The have excellent thermal stability. Due to the regular arrangement azobenzene chains, polymers can rapidly undergo photoinduced transition from trans-isomerism cis-isomerism in THF solution restore reversible configurational changes under visible...
Based on a multilevel model considering enough bound electronic states of atoms, we theoretically study the role transition dipole phase (TDP) in attosecond transient absorption (ATA) spectrum helium intense laser fields. By solving stationary Schrödinger equation with B-spline basis sets, first calculate moments well-defined phases between states. Using modified model, reveal that TDP plays an important determining spectral structures if two or more paths populate excited from ground state....
A three-dimensional lily-like structure was constructed by the novel combination of La 2 O 3 , Co 4 and graphene on nickel foam (LCGN) through hydrothermal synthesis thermal annealing.
Herein, we have prepared a new nanocomposite Bi 2 S 3 /Co O 4 /rGO/Ni foam substrate electrode through hydrothermal synthesis and an annealing process.
The electron-phonon coupling (EPC) is a ubiquitous interaction in condensed systems and plays vital role shaping the electronic properties of materials. Yet, achieving coherent manipulation has posed considerable challenge. Here, employing time-resolved high-harmonic generation (tr-HHG) spectroscopy, we demonstrate bandgap dynamics BaF2 crystal by precisely controlling EPC using ultrashort light pulses. tr-HHG spectrum perturbed triply degenerate phonon mode T2g, exhibits simultaneously...