A5100741969- Laser-Matter Interactions and Applications
- Ionic liquids properties and applications
- CO2 Reduction Techniques and Catalysts
- Advanced Fiber Laser Technologies
- Laser Design and Applications
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Laser-induced spectroscopy and plasma
- Mass Spectrometry Techniques and Applications
- Advanced battery technologies research
- Ammonia Synthesis and Nitrogen Reduction
- Tribology and Wear Analysis
- Metal and Thin Film Mechanics
- Spectroscopy and Quantum Chemical Studies
- Photovoltaic System Optimization Techniques
- Copper-based nanomaterials and applications
- Solar Thermal and Photovoltaic Systems
- Phase Equilibria and Thermodynamics
- Graphene research and applications
- Solar Radiation and Photovoltaics
- Membrane Separation Technologies
- Catalysis and Oxidation Reactions
- Electrochemical sensors and biosensors
- Metal-Organic Frameworks: Synthesis and Applications
Shanghai Advanced Research Institute
2016-2025
Chinese Academy of Sciences
2016-2025
Inner Mongolia University of Technology
2025
Langfang Normal University
2019-2024
University of Chinese Academy of Sciences
2011-2024
Lanzhou Institute of Chemical Physics
2021-2023
Shandong Agricultural University
2021
Yunnan Normal University
2017-2020
Shandong Institute of Metrology
2019
Energy Research Institute
2017-2018
Remote laser in air based on amplified spontaneous emission (ASE) has produced rather well-collimated coherent beams both backward and forward propagation directions, opening up possibilities for new remote sensing approaches. The ASE-based lasers were shown to enable operation either at ~391 337 nm using molecular nitrogen or ~845 oxygen as gain medium, depending the employed pump lasers. To date, a multi-wavelength that allows dynamically switching operating wavelength not yet been...
We carry out a combined theoretical and experimental investigation on the population distributions in ground excited states of tunnel-ionized nitrogen molecules at various driver wavelengths near- midinfrared range. Our results reveal that efficient couplings (i.e., exchanges) between N_{2}^{+}(X^{2}Σ_{g}^{+}) state N_{2}^{+}(A^{2}Π_{u}) N_{2}^{+}(B^{2}Σ_{u}^{+}) occur strong laser fields. The result inversion near 800 nm, which is verified by our observation amplification seed ∼391 nm....
Abstract To separate small molecules/species, it’s crucial but still challenging to narrow the 2D-interspacing of graphene oxide (GO) membranes without damaging membrane. Here fast deposition ultrathin, defect-free and robust GO layers is realized on porous stainless steel hollow fibers (PSSHFs) by a facile practical electrophoresis (ED) method. In this approach, oxygen-containing groups are selectively reduced, leading controlled decrease 2D channels stacked layers. The resultant...
The solubilities of CO2 in eutectic mixtures containing choline chloride and dihydric alcohols (including 1,4-butanediol, 2,3-butanediol, 1,2-propanediol) with a molar ratio to alcohol 1:3 1:4 were measured at 293.15 K, 303.15 313.15 323.15 K under pressures up 600.0 kPa using an isochoric saturation method. Henry's constant the dissolution Gibbs free energy, enthalpy, entropy changes solvation obtained by correlating experimental data. solubility increased linearly increasing pressure or...
We experimentally demonstrate the generation of narrow-bandwidth emissions with excellent coherent properties at ∼391 and ∼428 nm from N2+ (B2Σu+ (v' = 0) → X2Σg+ (v 0, 1)) inside a femtosecond filament in air by an orthogonally polarized two-color driver field (i.e. 800 laser pulse its second harmonic). The durations 391 428 are measured to be ∼2.4 ∼7.8 ps, respectively, both which much longer than duration pump harmonic pulses. Furthermore, temporal decay characteristics excited molecular...
In this paper, a multi-functional composite coating with low friction coefficient, high wear resistance and excellent tribocorrosion is fabricated on AZ31 Mg alloys by micro-arc oxidation spray-coating methods. The microstructure, composition of the are characterized SEM, EDS, XRD, FT-IR. Potentiodynamic polarization EIS tests conducted to evaluate corrosion coating. property also studied using pin-on-disk tribometer in 3.5 wt.% NaCl solution. It found that possesses better long-term than...
The electrochemical conversion of carbon dioxide (CO2) to fuels and chemicals is an opportunity for sustainable energy research that can realize both renewable storage negative cycle feedback. However, the selective generation multicarbon products challenging because competitive hydrogen evolution reaction (HER) protonation reacting adsorbate. Copper-based materials have been most commonly studied catalysts CO2 electroreduction due their ability produce a substantial amount C2 products....
Electrochemical conversion of CO2 into valuable feedstocks is a promising strategy for carbon neutrality. However, it remains challenge to possess large current density, high faradaic efficiency and excellent stability practical applications utilization. Herein, we report facile tactic that enables exceedingly efficient electroreduction CO by virtue low-coordination chloride ion (Cl- ) adsorption on silver hollow fiber (Ag HF) electrode. A 92.3 % at density one ampere per square centimeter...
Abstract Synthesis of valuable chemicals from CO 2 electroreduction in acidic media is highly desirable to overcome carbonation. However, suppressing the hydrogen evolution reaction such proton-rich environments remains a considerable challenge. The current study demonstrates use hollow fiber silver penetration electrode with hierarchical micro/nanostructures enable reduction strong acids via balanced coordination and K + /H supplies. Correspondingly, faradaic efficiency 95% achieved at...
Over recent decades, many pathogenicity genes of Magnaporthe oryzae have been identified but only a very limited number that encode components the conidiogenesis pathway. We report here T-DNA insertional mutant completely lost conidiation ability. Further investigation revealed this did not develop any conidiophore, and was integrated into an annotated gene designated as conidiophore stalk-less1 or COS1. Complementation experiments suggested COS1 may be determinant conidiation. Sequence...
When exposed to intense infrared laser pulses of femtosecond duration, molecules such as N${}_{2}$, CO${}_{2}$, and H${}_{2}$O not only become ionized but can also produce lasers a result simultaneous population inversion. Scientists look deep into this ``air lasing'' phenomenon in N${}_{2}$ gas uncover both quantum coherence the rotational wave packets lasing molecular ions its footprint air-laser spectrum.
A submicron thick diboronic acid linked GOF/polyvinyl alcohol hybrid membrane was prepared for the first time. The uniform inter-spacing of GOF excludes diffusion large molecules based on a molecular sieving mechanism. It exhibits high stability and excellent performance in solvent (≥C3) dehydration (SFs > 10,000).
Abstract Electroreduction of CO 2 to is a promising route for greenhouse gas resource utilization, but it still suffers from impractical current density and poor durability. Here, nanosheet shell (NS) vertically standing on the Ag hollow fiber (NS@Ag HF) surface formed by electrochemical reconstruction reported. As‐prepared NS@Ag HF as penetration electrode exhibited high faradaic efficiency 97% at an ultra‐high 2.0 A cm −2 with sustained performance continuous >200 h operation. The...
Partial positive valence Cu (Cuδ+) sites on Cu-based electrocatalysts are important for C–C coupling to form C2+ products; however, maintaining the stability of Cuδ+ remains a challenge. Herein, an ultrastable (0 < δ 1) site over copper penetration electrode was constructed using boron tailor *CO adsorption strength and configuration facilitating coupling, which achieves Faradaic efficiency (FE) 78.9% at −0.91 V (vs reversible hydrogen electrode), ethanol FE reaches 52.4% with ultrahigh...
Recently, amplification of harmonic-seeded radiation generated through femtosecond laser filamentation in air has been observed, giving rise to coherent emissions at wavelengths corresponding transitions between different vibrational levels the electronic B(2)Σ(u)(+) and X(2)Σ(g)(+) states molecular nitrogen ions [Phys. Rev. A. 84, 051802(R) (2011)]. Here, we carry out systematic investigations on its physical mechanism. Our experimental results do not support speculation that such excellent...
Al<sub>2</sub>O<sub>3</sub> tube supported GO composite membranes with submicron thickness and improved mechanical strength were fabricated <italic>via</italic> a filter-pressing deposition method. High separation performance was achieved in the pervaporation of solvent–water mixtures.
We report, for what we believe to be the first time, on generation of remote self-seeding laser amplification by using only one 800 nm Ti:Sapphire femtosecond pulse. The pulse (~ 40 fs) is used generate a filament either in pure nitrogen or ambient air which population inversion between ground and excited states molecular ions realized. Self-induced white light inside then serving as seed amplified. self-induced narrow-band at 428 has duration ~2.6 ps with perfect linear polarization...