A5075745049- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Multiferroics and related materials
- Dielectric properties of ceramics
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Electrophoretic Deposition in Materials Science
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Dielectric materials and actuators
- Advanced ceramic materials synthesis
- Catalytic Processes in Materials Science
- Metal-Organic Frameworks: Synthesis and Applications
- Luminescence Properties of Advanced Materials
- Magnetic and transport properties of perovskites and related materials
- Gas Sensing Nanomaterials and Sensors
- Acoustic Wave Resonator Technologies
- Magneto-Optical Properties and Applications
- Heavy metals in environment
- Soil and Water Nutrient Dynamics
- Advanced Sensor and Energy Harvesting Materials
- Liquid Crystal Research Advancements
- ZnO doping and properties
- Ga2O3 and related materials
- Supercapacitor Materials and Fabrication
Henan Agricultural University
2024
Dalian University of Technology
2021-2024
China West Normal University
2013-2024
Nanjing Normal University
2006-2023
Hohai University
2023
Zhejiang University
2011-2022
Tianjin University
2022
Dalian University
2021-2022
National Engineering Research Center for Information Technology in Agriculture
2021
China Jiliang University
2019-2020
Although single metal atoms (SMAs) have been extensively investigated as unique active sites in single-atom catalysts, the possible of host catalysts unfortunately neglected previous studies. In SMAs can promote chemical and catalytic activities atoms, which may act secondary sites, resulting a significant synergistic effect on performance. Using density functional theory calculations, we studied oxygen evolution reaction (OER) reduction (ORR) two different types sites: (M1) neighboring...
Improvement of electrocaloric effect was investigated in the lead‐free undoped and Mn ‐doped Ba 0.65 Sr 0.35 TiO 3 ceramics prepared by spark plasma sintering process. Owing to merit process, a fully dense with fine grain sizes could be obtained. The ( EC ) can significantly enhanced from 0.83 K for conventional sintered 3.08 plasma‐sintered since dielectric strength dramatically increased. This work indicated an effective way achieve system at room temperature.
A new Zr-MOF based on tetrakis(4-carboxyphenyl) silane was synthesized, and factors affecting the hydrothermal stabilities of Zr-MOFs are discussed.
The difficulty of obtaining large single crystals aluminum carboxylate metal-organic frameworks (MOFs) for structure determinations has limited the development these water and thermally stable MOFs. Herein, how known MIL-53(Al) first two tetrahedral ligand-based, visible-light-absorbing 3D Al-MOFs, [Al3 (OH)3 (HTCS)2 ] (AlTCS-1) [Al5 O2 (TCS)2 (H2 O)2 (AlTCS-2; TCS=tetrakis(4-oxycarbonylphenyl)silane), are obtained in presence hydrofluoric or formic acid conventional single-crystal...
Aqueous solutions containing Zn(OH)42− ions were prepared by adding 50 ml of 1.5 mol l−1 aqueous alkali metal hydroxide (MOH: M = Li, Na, K, Cs) to 0.1 zinc nitrate hydrate (Zn(NO3)2·6H2O). Zinc oxide (ZnO) crystallites obtained heating at ≥348 or 368 K for 3 h. The morphology depended on both the temperature solution and used obtain ions. According result kinetics formation, it was shown that decomposition surface rate determining step when NaOH, KOH CsOH When LiOH ions, nucleation and/or adsorption
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Shu Fei Liu, Yong Jun Wu, Juan Li, Xiang Ming Chen; Effects of oxygen vacancies on dielectric, electrical, ferroelectric properties Ba4Nd2Fe2Nb8O30 ceramics. Appl. Phys. Lett. 24 February 2014; 104 (8): 082912. https://doi.org/10.1063/1.4867069 Download citation file: Ris (Zotero) Reference Manager EasyBib...
A thermodynamic potential for Ba1-xSrxTiO3 solid solutions is developed, and the corresponding properties of single crystals are calculated. The predicted temperature-composition phase diagram from agrees well with experimental measurements. Based on this potential, energy storage performances electrocaloric effects obtained using phase-field method. It found that there an optimal Sr concentration which maximizes discharged density a crystal under applied electric field. Ba0.8Sr0.2TiO3,...
Dielectric response of Y3Fe5O12 ceramics was investigated over broad temperature and frequency ranges. Three dielectric relaxations were identified in the range from 125to620K. A Debye-type relaxation at low temperatures (125–320K) with an activation energy 0.29eV is shown to originate carrier hopping process between Fe2+ Fe3+. In a higher (320–620K), (f≦10kHz) 0.84eV most likely arises inhomogeneous structure, such as grain boundaries. Another wider has similar conduction (Ea=1.00eV)...
Fused silica was prepared by different approaches, and the microwave dielectric properties were investigated. For fused sintered at 1100°C solid‐state sintering, constant (ε r ) Qf value increased with increasing sintering time up to 5 h, while temperature coefficient of resonant frequency (τ f decreased. The optimal low ε 3.72, high 44,300 GHz, τ −14.4 ppm/°C achieved when for h. could be further improved other preparing as listed below: = 3.90, 63,500 −5.7 spark plasma 3.83, 122,100 −8.3...
High performance liquid chromatography (HPLC) is a key analytical technique that used in number of fields. Improving the separation efficiency, stability, and universality HPLC has been continuing analytical-chemistry focus. In chromatographic separation, factors such as composition ratio mobile phase, type stationary dimensions column significantly affect efficiency. addition, temperatures phase are also important for achieving separation. The oven usually to stably control temperature...
Zinc oxide (ZnO) nanoparticles were obtained by firing the zinc peroxide at more than 473 K for 2 h. The decomposed to form ZnO that contained O22− ions. Furthermore, without ions decomposition of 513 and oxygen vacancies. increase unit cell parameter decrease activation energy electronic conduction observed due vacancy. also had lattice strain. value Δd/d decreased from 9.1 × 10−3 0 when temperature was in range 773 K.
Sediment samples were collected from 10 sites in Lake Ulansuhai during summer and winter 2009 to reveal seasonal variations sediment heavy metal levels. The geoaccumulation index (GI) was calculated assess the severity of pollution. GI values suggest that, winter, lake sediments polluted slightly with Cu (GI=0.66–1.34), Zn (GI=0.59–1.35), Cr (GI=0.49–0.82) Pb (GI=0.60–0.96), moderately Cd (GI=1.03–4.23). degree pollution higher than summer. By contrast, for Hg As. Correlation analysis can be...
Intensive agricultural activities in the Hetao irrigation district have severely degraded local aquatic ecosystems and water quality, Ulansuhai Lake is now most rapidly degrading eutrophic lake China. A better understanding of hydro-agronomic pollutant transport processes area thus urgently needed. This study simulated monthly streamflow, total nitrogen (TN) phosphorus (TP) for using Soil Water Assessment Tool (SWAT) to evaluate nutrient load, source areas, hydrological pathways. The...