A5100629832- Luminescence Properties of Advanced Materials
- Advanced Photocatalysis Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Luminescence and Fluorescent Materials
- Membrane Separation Technologies
- Radiation Detection and Scintillator Technologies
- Perovskite Materials and Applications
- Inorganic Chemistry and Materials
- Nuclear materials and radiation effects
- Electrocatalysts for Energy Conversion
- Surface Modification and Superhydrophobicity
- Advanced battery technologies research
- Microwave Dielectric Ceramics Synthesis
- Advanced ceramic materials synthesis
- Glass properties and applications
- Gas Sensing Nanomaterials and Sensors
- Solar-Powered Water Purification Methods
- Catalytic Processes in Materials Science
- TiO2 Photocatalysis and Solar Cells
- Spectroscopy and Laser Applications
- Solid-state spectroscopy and crystallography
- Ga2O3 and related materials
- Advanced Nanomaterials in Catalysis
- Atmospheric Ozone and Climate
- Aerogels and thermal insulation
Dalian Maritime University
2024
University of Science and Technology of China
2014-2023
Chinese Academy of Sciences
2012-2021
Hefei University
2015-2020
State Council of the People's Republic of China
2016-2018
National Synchrotron Radiation Laboratory
2006-2012
Tamkang University
2012
Anhui University of Traditional Chinese Medicine
2006
Pure BaMgSiO4:Eu2+ phosphor, prepared by a solid state reaction method under N2 atmosphere, exhibited strong green emission at 500 nm and weak 405 nm. Heat treatment NH3 atmosphere causes changes in the PL intensity: gradually decreases completely disappears after heat for 3 h, whereas new blue peak, centered 445 nm, appears becomes very strong. The results of analyses with electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), absorption fine structure (XAFS) suggest...
Self-cleaning materials have attracted immense commercial and academic interests in recent years. A major challenge is the scalable cost-effective fabrication of three-dimensional bulk with remarkable self-cleaning a desirable combination tailored porosity, robust superhydrophobicity, excellent mechanical strength, heat insulation, sound absorption ability. Here, concrete was achieved one step through liquid template pore formation situ hydrophobic modification. The exhibited...
Abstract Tungsten carbide (WC)-based materials are widely considered as the hydrogen evolution reaction (HER) process catalysts due to their “Pt-like” electronic structure. Nonetheless, traditional powder electrodes have a high cost, and display problems related itself poor stability over operation time. This paper presented self-supported asymmetric porous ceramic electrode with WO 3− x whiskers formed in situ on walls of finger-like holes membrane surface, which was prepared by combining...
Developing an economical, durable, and efficient electrode that performs well at high current densities is capable of satisfying large-scale electrochemical hydrogen production highly demanded. A self-supported electrocatalytic "Pt-like" WC porous with open finger-like holes produced through industrial processes, a tightly bonded nitrogen-doped WC/W (WC-N/W) heterostructure formed in situ on the grains. The obtained WC-N/W manifests excellent durability stability under multi-step density...
Nitrogen modified Sr<sub>2</sub>SiO<sub>4</sub>:Eu<sup>2+</sup> (NSSO) phosphors with novel photoluminescence properties.
The luminance degradation of BaMgAl 10 O 17 :Eu 2+ (BAM) caused by baking at 600°C was studied. dissolution Si–N into BAM lattice lead to only a reduction in the parameters. Under UV excitation, codoping enhanced luminescent intensity factor 110% for as‐received phosphors and 122% baked 1 h. This could be attributed stable local structure surrounding Eu ions lower electronegativity nitrogen. proposed method is expected potentially applicable other aluminate with higher stability photoluminescence.
One of the biggest problems in white light‐emitting diodes ( WLED s) is moisture‐induced degradation phosphors. This paper proposes a simple and feasible surface modification method to solve it, whereby hydrophobic layer developed on The particular case orange‐red‐emitting Sr 2 Si 5 N 8 :Eu 2+ SSN ) phosphor was investigated. mechanism develop involves hydrolysis polymerization tetraethylorthosilicate TEOS polydimethylsiloxane PDMS ). experimental results showed that successfully modified...
Silicon oxycarbide (SiOC) ceramics are attractive materials for anodes of lithium-ion batteries, because their excellent structural stability and high rate capability. Nonetheless, complex production procedures hinder commercialization. This work proposes a simple emulsion templating method using liquid pore-forming agent to prepare hard SiOC microbeads, which feature spherical morphology (∼35 μm in diameter) large specific surface area (217 m2 g–1). Moreover, the produced microbeads have...
Abstract Developing robust electrodes with high catalytic performance is a key step for expanding practical HER (hydrogen evolution reaction) applications. This paper reports on novel porous Mo 2 C‐based ceramics oriented finger‐like holes directly used as self‐supported electrodes. Due to the suitable MoO 3 sintering additive, high‐strength (55 ± 6 MPa) ceramic substrates and highly active layer are produced in one step. The situ reaction between C enabled introduction of O crystal lattice...
Eu doped aluminum nitride phosphors were successfully synthesized by a novel gas-reduction-nitridation route with reaction temperature of 1400 °C and soaking time 3 h. The obtained AlN:Eu analyzed to elucidate the location luminescent center. High-resolution transmission electron microscopy microscopy-energy dispersive spectra proved that was located in crystal lattice AlN, then EXAFS revealed occupied highly distorted Al site coordinated four nitrogen at about 2.30–2.40 Å, second nearest...