A5082680570- Advancements in Solid Oxide Fuel Cells
- Electronic and Structural Properties of Oxides
- Magnetic and transport properties of perovskites and related materials
- Catalytic Processes in Materials Science
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- Electrocatalysts for Energy Conversion
- Phase-change materials and chalcogenides
- Nanoparticle-Based Drug Delivery
- Magneto-Optical Properties and Applications
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Diamond and Carbon-based Materials Research
- Rare-earth and actinide compounds
- Acoustic Wave Resonator Technologies
- Advanced Thermoelectric Materials and Devices
- Photorefractive and Nonlinear Optics
- Advanced Condensed Matter Physics
- Biofuel production and bioconversion
- Robotics and Sensor-Based Localization
- biodegradable polymer synthesis and properties
- Quantum Chromodynamics and Particle Interactions
- Semiconductor Lasers and Optical Devices
- Advanced Cellulose Research Studies
- Catalysis and Oxidation Reactions
Collaborative Innovation Center of Advanced Microstructures
2025
Tsinghua University
2005-2025
Nanjing University
2019-2025
Stanford University
2017-2025
Air Force Engineering University
2019-2025
State Key Laboratory of New Ceramics and Fine Processing
2023
Anhui Medical University
2023
Kansas State University
2023
Guilin University of Electronic Technology
2021
State Key Laboratory of Cryptology
2021
Electrospun polyaniline (PAni) fibers doped with different levels of (+)‐camphor‐10‐sulfonic acid (HCSA) are fabricated and evaluated as chemiresistive gas sensors. The experimental results, based on both sensitivity response time, show that PAni excellent ammonia sensors undoped nitrogen dioxide exhibit changes in measured resistances up to 60‐fold for sensing, more than five orders magnitude characteristic times the order one minute cases. A time‐dependent reaction‐diffusion model is used...
Ultrahigh–power-density multilayer ceramic capacitors (MLCCs) are critical components in electrical and electronic systems. However, the realization of a high energy density combined with efficiency is major challenge for practical applications. We propose high-entropy design barium titanate (BaTiO 3 )–based lead-free MLCCs polymorphic relaxor phase. This strategy effectively minimizes hysteresis loss by lowering domain-switching barriers enhances breakdown strength atomic disorder lattice...
In this paper, we focus on the effect of processing‐dependent lattice strain oxygen ion conductivity in ceria based solid electrolyte thin films. This is importance for technological applications, such as micro‐SOFCs, microbatteries, and resistive RAM memories. The can be significantly modified by control strain, to an extent comparable doping bulk with cations different diameters. interplay dopant radii, microstrain, anion‐cation near order transport analyzed experimentally interpreted...
Abstract While the properties of functional oxide thin films often depend strongly on their oxygen stoichiometry, there have been few ways to extract this information reliably and in situ. In work, derivation non‐stoichiometry dense Pr 0.1 Ce 0.9 O 2−δ from an analysis chemical capacitance obtained by impedance spectroscopy is described. Measurements are performed electrochemical cells form /Y 0.16 Zr 0.84 1.92 /Pr over temperature range 450 800 °C partial pressure 10 −5 1 atm 2 . With aid a...
Electrochemical reduction of CO2 into valuable fuels and chemicals has become a contemporary research area, where the heterogeneous catalyst plays critical role. Metal nanoparticles supported on oxides performing as active sites electrochemical reactions have been focus intensive investigation. Here, we review with materials prepared by exsolution. The fundamental exsolution was summarized in terms mechanism models, materials, driven forces. advances exsolved used high-temperature...
Metal nanoparticles supported on powder and fiber perovskites via exsolution. The shows a weight loss about 4.4 times higher than the sample. These have been applied in solid oxide fuel cell configuration.
Protonic ceramic electrochemical cells (PCECs) are highly promising devices for CO 2 /H O co-electrolysis reactions.
Optical techniques for data storage have advanced rapidly during the last decade. presents many unique advantages, notably high density and low access time, not attainable by conventional recording techniques. The special features of optical recording, proposed materials techniques, components as well some representative bit-by-bit holographic systems are reviewed. It is noted that in spite lack widespread commercial success at present, devices been successfully demonstrated. knowledge...
PrxCe1–xO2−δ can potentially serve as both the cathode and anode in solid oxide fuel cells (SOFCs), given that it exhibits significant mixed ionic-electronic conductivity (MIEC) under cathodic anodic conditions. While MIEC is strongly dependent on oxygen nonstoichiometry (δ), there have been few ways to extract this information reliably situ, particularly for thin films. In work, achieved by analysis of chemical capacitance values extracted from impedance spectroscopy data obtained...
While the properties of functional oxide thin films often depend strongly on oxygen stoichiometry, there have been few means available for its control in a reliable and situ fashion. This work describes use DC bias as systematically controlling stoichiometry deposited onto yttria‐stabilized zirconia substrates. Impedance spectroscopy is performed electrochemical cell Pr 0.1 Ce 0.9 O 2−δ (PCO)/YSZ/Ag conditions: T = 550 to 700 °C, pO 2 10 −4 1 atm, ΔE ‐100 100 mV. The used effective or...
Simultaneous in situ optical absorption and electrochemical impedance spectroscopy measurements were performed, for the first time, at elevated temperature on a metal oxide thin film exhibiting oxygen nonstoichiometry, utilizing Pr0.1Ce0.9O2−δ (10PCO) as model system. Chemical capacitance measurements, capable of providing explicit values δ, used to determine optically absorbing center (Pr4+) concentration thereby extinction coefficient Pr4+. The was found exhibit linear dependence Pr4+...
Transition metal oxides are promising candidates in the field of thermoelectricity, which can convert heat and electricity into each other realize efficient utilization waste energy. For figure merit ZT = S2σT/(κe + κl), a lower thermal conductivity is desired for an enhanced ZT, cation doping appropriate way to regulate transport properties. However, because S, σ, κe strongly coupled with other, one parameter modification generate compensation others, making regulation more difficult. In...
The ever-increasing emissions of volatile organic compounds (VOCs) from industrial activities pose significant environmental and health risks. Nonthermal plasma (NTP) degradation technology has emerged as a prominent method for VOC due to the mild reaction conditions but demands an efficient catalyst high product conversion. This study presents mesoporous layered NiFe double silicate fabricated by between 13X zeolite hydroxides (LDHs). Under NTP conditions, catalysts achieved 90% ethyl...
Reducible rare earth oxides (REO2-x) are essential in catalysis due to their 4f band–governed surface redox properties, which influence crucial reactions such as hydrogen dissociation and water formation. However, correlating band structure with catalytic activity has been a long-standing challenge the complexities of manipulating characterizing electrons. Here, we demonstrate that tensile strain effectively modulates electronic structure, narrowing gap activating oxygen, leading enhanced...