A5045450221- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Electronic and Structural Properties of Oxides
- Dielectric materials and actuators
- Advanced Condensed Matter Physics
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Magnetic properties of thin films
- Chalcogenide Semiconductor Thin Films
- Electrocatalysts for Energy Conversion
- X-ray Spectroscopy and Fluorescence Analysis
- Physics of Superconductivity and Magnetism
- Glass properties and applications
- Advanced Battery Materials and Technologies
- Microwave Dielectric Ceramics Synthesis
- Semiconductor materials and devices
- ZnO doping and properties
- Magnetic Properties and Synthesis of Ferrites
- Advanced Thermoelectric Materials and Devices
- Electromagnetic wave absorption materials
- Dielectric properties of ceramics
- Magneto-Optical Properties and Applications
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Negative Capacitance Devices
Xi'an Jiaotong University
2015-2024
Ji Hua Laboratory
2022
China XD Group (China)
2015-2018
Nanyang Technological University
2000
Metal-doped zeolitic imidazolate framework-8 (ZIF-8)-derived carbon materials are attractive for the electrocatalytic reduction of CO2 into CO. In such materials, due to fusion and aggregation ZIF-8 precursors during high-temperature pyrolysis process, it is desirable yet still challenging create a high specific surface area with more active sites available reacting reactants. Using SiO2 as protective coating on surface, we synthesize Fe, N-co-doped porous nanoparticles (Fe-CNPs) which...
Abstract Lead‐free dielectric ceramics have been the spotlight in search for environmentally benign materials electrostatic energy storage because of ever‐increasing environmental concerns. However, inverse correlation between polarization and breakdown strength is major barrier hindering provision sufficient densities lead‐free practical applications thereof. Herein, a rational structure design inspired by nature demonstrated as an effective strategy to overcome these challenges....
Metal species have a relatively high mobility inside mesoporous silica; thus, it is difficult to introduce the metal precursors into silica mesopores and suppress migration of during reduction process. Therefore, until now, controlled growth nanocrystals in confined space, i.e., channels, has been very challenging. Here, by using soft-enveloping reaction at interfaces solid, liquid, solution phases, we successfully control metallic template. Diverse monodispersed nanostructures with...
Abstract Bismuth sodium titanate (BNT)‐based lead‐free piezoceramics are promising for replacing lead‐based in piezoelectric actuators due to their large strains. However, achieving low‐hysteresis large‐strain BNT‐based ceramics over a broad temperature range is challenging, owing the complexity of composition design and phase transformation. Herein, relaxor‐ferroelectric (1− x )Bi 0.47 Na Ba 0.06 TiO 3 ‐ K Li Nb 0.99 Sb 0.01 O 2.99 system (BNBT‐KNLNS) near morphotropic boundary (MPB),...
Dielectric capacitors are highly desired for electronic systems owing to their high-power density and ultrafast charge/discharge capability. However, the current dielectric suffer severely from thermal instabilities, with sharp deterioration of energy storage performance at elevated temperatures. Here, guided by phase-field simulations, we conceived fabricated self-assembled metadielectric nanostructure HfO
High-temperature piezoelectric materials, which enable the accurate and reliable sensing of physical parameters to guarantee functional operation various systems under harsh conditions, are highly demanded. To this end, both large piezoelectricity high Curie temperature pivotal figures merit (FOMs) for high-temperature piezoceramics. Unfortunately, despite intensive pursuits, it remains a formidable challenge unravel inverse correlation between these FOMs. Herein, conceptual material...
The magnetic and electrical properties of complex oxide thin films are closely related to the phase stability cation ordering, which demands that we understand process-structure-property relationships microscopically in functional materials research. Here study multiferroic double-perovskite La2NiMnO6 epitaxially grown on SrTiO3, KTaO3, LaAlO3 DyScO3 substrates by pulsed laser deposition. effect epitaxial strains imposed substrate microstructural has been systematically investigated means...
Three optically transparent colorful (red, green, and blue) glasses were synthesized by the sol-gel method. Nano-sized precipitates found in scanning electron microscopy images. The analyzed transmission (TEM) high resolution TEM. measured lattice parameters of these to fit metallic copper red glass but deviate from single valenced Cu oxides green blue glasses. chemistry nano-sized particles was confirmed energy loss spectroscopy (EELS). By fitting EELS spectra obtained with linear...
Realizing ultrahigh breakdown strength and energy density by regulating electron transport utilizing the ferroelectric property differences of parent materials to slim P – E loop multilayer thin films.
Abstract Transmission electron microscopy and related analytical techniques have been widely used to study the microstructure of different materials. However, few research works performed in field glasses, possibly due electron-beam irradiation damage. In this paper, we developed a method based on energy loss spectroscopy (EELS) data acquisition analyses, which enables determination boron speciation series ternary alkali borosilicate glasses with constant molar ratios. A script for fast EELS...