<Research Topics>

■ 2D Transition-Metal Dichalcogenides (TMDs), High-Entropy/Entropy-Stabilized Ceramics, Amorphous/Glass Materials, Strongly Correlated Electronic Ceramics, Phase Transition Materials,  Spinodal Decomposition, and Defect and Crystal Chemistry for Applications in Gas Sensors/Electrocatalysts/Magnetocaloric Materials

■ Synthesis and Processing of Electronic/Energy/Environmental Ceramics

■ Processing-Structure-Property-Performance Relationships in Electronic/Energy/Environmental Ceramics

■ Inorganic Solid-State Chemistry: Alloys and Compounds, Defect and Crystal Chemistry, Intercalation Chemistry, Surfaces and Interfaces, Sintering and Microstructure, Nucleation, Growth, and Crystallization, Phase Transitions and Transformations, Phase Separation and Spinodal Decomposition, Nanocomposites and Inorganic-Organic Hybrid Materials, Thin-Film Deposition, Nanotechnology, and Materials Characterization

■ Physical Chemistry of Solids: Thermodynamics and Kinetics, Solid-State Reaction, Solid-State Ionics, Solid-State Electrochemistry, and Mixed Ionic–Electronic Conduction (MIEC)

■ Electrochemistry and Electrochemical Devices: Sensor, Catalyst, Battery, Fuel Cell, Electrolysis Cell, etc.

■ Solution Processing of Inorganic Materials: Metal-Organic Decomposition/Deposition (MOD), Spray Pyrolysis, Chemical Bath/Solution Deposition, Electrodeposition, Flux-Mediated Crystal Growth, Molten-Salt/Sol-Gel/(Co-)Precipitation/Combustion/Hydrothermal/Solvothermal Synthesis, Polymerized Complex Method (Pechini Method), and Ink Chemistry for Printed Electronics

■ Design and Fabrication of Precursors for Ceramic Processing

■ Nucleation, Growth, and Crystallization in Liquid Solution and Amorphous/Glass Solid

■ Amorphous/Glass Electrocatalysts and Gas Sensing Materials 

■ Why Gas Sensor Materials Respond Differently to Different Gases

■ Gas-Molecule Adsorption/Desorption/Light-Induced Phase Transitions: Highly Selective, Low-Power, Room-Temperature-Operating Chemiresistive Semiconductor Gas Sensors Photoactivated by Light-Emitting Diodes (LEDs) Toward Hydrogen (H2), Nitrogen Dioxide (NO2), Hydrogen Sulfide (H2S), Formaldehyde (HCHO), Acetone (CH3COCH3), Ethanol (C2H5OH), etc.

■ Mixed-Potential Gas Sensors Based on Solid Electrolytes (Ionic Conductors) and Mixed Ionic–Electronic Conductors (MIEC)

■ Fuel Cell Gas Sensors

■ Photoelectrochemical (Gas) Sensors

■ Defect and Crystal Chemistry in 2D Transition-Metal Dichalcogenides (TMDs) and High-Entropy/Entropy-Stabilized Ceramics for the Applications to Gas Sensors and Electrocatalysts

■ Gas Sensing and Electrocatalytic Properties of Strongly Correlated Electronic Ceramics

■ Utilization of Phase Transition Ceramics: Development of Low-Power, Room-Temperature-Operating Gas Sensors and High-Efficiency Electrocatalysts Using Stabilization of Metastable Metallic Phase in Phase Transition Ceramics

■ Utilization of Phase Separation via Spinodal Decomposition in Ceramics: Kinetics of Spinodal Decomposition Controlled by Defect and Crystal Engineering (Preferred Orientation, Epitaxy, Topotaxy, Doping, Alloying, Vacancy, and Intercalation) and Their Applications to Gas Sensors and Electrocatalysts

■ Magnetocaloric Materials for Solid-State Refrigeration