A5040571070- Radio Astronomy Observations and Technology
- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Catalytic Processes in Materials Science
- Phase Change Materials Research
- Antenna Design and Optimization
- Robotic Mechanisms and Dynamics
- Solar Thermal and Photovoltaic Systems
- Adsorption and Cooling Systems
- Astronomical Observations and Instrumentation
- Dynamics and Control of Mechanical Systems
- Geophysics and Gravity Measurements
- Chemical Synthesis and Characterization
- GNSS positioning and interference
- Structural Analysis and Optimization
- Advancements in PLL and VCO Technologies
- Astronomy and Astrophysical Research
- Advanced Measurement and Metrology Techniques
- Covalent Organic Framework Applications
- Catalysis and Oxidation Reactions
- VLSI and Analog Circuit Testing
- Vibration Control and Rheological Fluids
- Advanced Vision and Imaging
- Polymer Surface Interaction Studies
- History and Developments in Astronomy
Xiamen University
2024
Fujian Medical University
2024
Inner Mongolia Autonomous Region Meteorological Bureau
2024
Jiangsu University of Science and Technology
2024
Xiangya Hospital Central South University
2023
Central South University
2023
University of Electronic Science and Technology of China
2018-2022
Fudan University
2008-2018
Beijing University of Posts and Telecommunications
2016-2017
Hanyang University
2016
Zeolitic wood structures made by a seeded templating process offer new ways of investigating the complex morphology. The technique can also be used to create hierarchical porous zeolitic materials (see Figure). growth strategy shows potential for extension any organisms with structure and might make multilevel zeolites other types feasible.
Monodisperse and high-surface-area mesoporous inorganic spheres of various compositions including metal oxides, mixed phosphates are prepared by templating carbon which replicated from spherical silica. Due to the rigid thermally stable framework template, crystalline phases obtained oxide can be readily tailored controlling temperatures. Moreover, sphere morphologies changed solid structure hollow in some cases changing polarity precursor, due hydrophobic nature template.
Nanoporous molybdenum carbide nanowires have been successfully synthesized based on MoOx/amine hybrid with subnanometer periodic structures. The contact between MoOx and amine facilitates the achievement of Mo2C nanowires, whose high performance has validated in methanol decomposition. This opens up opportunities for developing carbides relevant functional materials future.
A novel type of hollow zeolite capsules has been fabricated through a facile route involving the vapor-phase transport (VPT) treatment silicalite-1 seeds precoated mesoporous silica (MS) spheres. The properties capsule interiors can be easily tailored by encapsulating desired guest species that have pre-embedded in mesopores MS cores.
Amplified fragment length polymorphism (AFLP) analysis was used to determine the degree of intra- and inter-specific genetic variation in genus Nicotiana. Forty-six lines cultivated tobacco (Nicotiana tabacum L.) seven wild Nicotiana species, including N. sylvestris, tomentosiformis, otophora, glutinosa, suaveolens, rustica, longiflora, were analyzed, using at least eight different oligonucleotide primer combinations capable detecting a minimum 50 polymorphic bands per pair. The amount...
Nanoshells composed of close-packed silver nanocrystals have been fabricated on polystyrene spheres via direct electrostatic attraction at appropriate pH; the thickness and roughness shell can be readily controlled through a layer-by-layer technique.
Straightening out chirality: Chiral mesostructured silica nanofibers of MCM-41 with one (see TEM image, the arrows indicate periodic fringes) and two twist axes were fabricated from a simple dilute synthesis system without any chiral additives. A continuous transformation mesostructure to an achiral straight was observed, thus demonstrating interesting relationship between these seemingly different structures.
Crystallization of zeolite ZSM-5 from a diluted heterogeneous system (12.5Na2O–Al2O3–8TPABr–60SiO2–4000H2O) was investigated by various experimental methods such as X-ray diffraction (XRD), electron (ED), infrared spectroscopy (FTIR), fluorescence (XRF), scanning microscopy (SEM), transmission (TEM), atomic force (AFM), thermo-gravimetric analysis (TGA), particle size (PSA), pH measurement, inductive coupling plasma (ICP) emission spectrometry, and dynamic light scattering (DLS). The...
A novel route is proposed for the preparation of mesopore containing zeolite ZSM-5 via in situ hydrothermal treatment a solution alkali-dissolved SBA-15 carbonized surfactant P123 mesopores; it exhibited prominent stability enhancement methanol to propylene reaction.
Mechanically stable zeolite monoliths containing three-dimensional, ordered, closed macropores (see Figure) have been fabricated by hydrothermal treatment of nanozeolite seeded mesoporous silica spheres. The facile speed sedimentation and digestion renders the whole process suitable for large-scale production macroporous materials, which may be used as adsorbents dielectric insulators.
In this study, we report a new, simple approach to the preparation of hierarchical structured zeolites through transforming diatomaceous silica into zeolite by vapor-phase transport (VPT) method. The morphology and macro-porosity diatomite are well preserved even in samples with content higher than 50%. products possess high mechanical strength hydrothermal stability, thus promising for application catalysis, adsorption separation. influence structures, amount adsorbed seeds, VPT treatment...
Abstract A novel and flexible strategy involving hydrothermal transformation of guest‐incorporated zeolite‐seeded mesoporous silica spheres was proposed to prepare guest‐encapsulated hollow zeolite three‐dimensionally (3D) ordered macroporous monoliths. The guest species that were pre‐incorporated into the mesopores could be spontaneously encapsulated inside formed shells by consuming nutrition original cores during process. wide range materials with a size ranging from nanometers...
Monodisperse silver nanoparticles with different sizes were synthesized by electrochemical reduction inside or outside zeolite crystals according to the exchange degree of compact film modified electrodes.
With a collecting area of 70 000 m^2, the Five hundred metre Aperture Spherical Telescope (FAST) will allow for great advances in pulsar astronomy. We have performed simulations to estimate number previously unknown pulsars FAST find with its 19-beam or possibly 100-beam receivers different survey strategies. receiver, total 5200 could be discovered Galactic plane, including about 460 millisecond (MSPs). Such would take just over 200 days eight hours time per day. also that, 80 six-hour...