A5069179515- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Ferroelectric and Piezoelectric Materials
- Dielectric properties of ceramics
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- ZnO doping and properties
- Acoustic Wave Resonator Technologies
- Dielectric materials and actuators
- Spectroscopy and Laser Applications
- Sensor Technology and Measurement Systems
- Advancements in Solid Oxide Fuel Cells
- Advanced Sensor and Energy Harvesting Materials
- Biochemical Analysis and Sensing Techniques
- Magnetic and transport properties of perovskites and related materials
- Advanced ceramic materials synthesis
- Electrocatalysts for Energy Conversion
- Olfactory and Sensory Function Studies
- Transition Metal Oxide Nanomaterials
Huazhong University of Science and Technology
2022-2025
Anhui University
2019-2021
Hefei University
2019-2021
Chinese Academy of Sciences
2021
Tsinghua University
2021
National Institute of Advanced Industrial Science and Technology
2021
University of Wollongong
2021
Aiming at the bottleneck problem of insufficient selectivity metal oxide gas sensors, a reliable scheme to improve is proposed, that is, laminated sensor structure gas-sensitive membrane plus catalytic combined with temperature modulation technology. It presented as highly selective ethanol an example for verification. The made Sr@SnO2 gas-sensing and ZSM-5 by microelectro mechanical system. results indicate in mode, Sr@SnO2/ZSM-5-laminated has good resistance response most different types...
Fine-grain induced ultrahigh energy storage density and fast discharge speed in novel Bi<sub>0.5</sub>K<sub>0.5</sub>TiO<sub>3</sub>–Ba(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub> ceramics <italic>via</italic> a hot-pressing strategy.
Nanomaterials of TiO2, (K0.5Na0.5)NbO3, and the TiO2/(K0.5Na0.5)NbO3 nanocomposite were successfully synthesized by a hydrothermal method. Impedance-type humidity sensors fabricated based on these materials. Our results reveal that impedance sensor changes 5 orders magnitude with an ultrahigh sensing response Sf = 166 470 recorded at 100 Hz in tested relative (RH) range 12-94%. This value is almost 2 4 larger than (K0.5Na0.5)NbO3 TiO2 sensors, respectively. Interestingly, satisfactory...
Insufficient selectivity is a major constraint to the further development of metal oxide semiconductor (MOS) sensors for chemical warfare agents, and this paper proposed an improved scheme combining catalytic layer/gas-sensitive layer laminated structure with temperature dynamic modulation Mustard gas (HD) MOS sensor. simulant 2-Chloroethyl ethyl sulfide (2-CEES) was used as target gas, (Pt + Pd Rh)@Al2O3 material, Rh)@WO3 gas-sensitive Rh)@Al2O3/(Pt sensor prepared, tested 2-CEES 12...
Abstract (Na 0.25 Nb 0.75 ) x Ti 1− O 2 (NNTO) ceramics ( = 0, 0.005, 0.01, 0.02, and 0.05) were prepared by the conventional solid‐state reaction. The microstructure, dielectric, humidity sensitivity of systematically investigated. Results showed that all exhibit pure rutile TiO phase with dense microstructures. Co‐doping (Na, Nb) can effectively improve microstructure homogeneity ceramics. When doping level ≥ co‐doped samples show colossal permittivity higher than 10 4 dielectric loss...
BiFeO3 was co-doped with (Ca, Pb) to obtain Bi1-x(Ca1/2Pb1/2)xFeO3 (x = 0, 0.1 and 0.3) their structural, morphological, dielectric ferroelectric properties were studied. The temperature dependent (from 173 573 K) permittivity showed that samples have colossal constant (CDC) around room temperature. pure sample had no signs of ferroelectric-phase-transition peak whereas the ferroelectric-phase-transition-induced anomaly an extremely huge intensity over 106 beyond K. thus, suitable doping has...
In this work, we studied the influence of cross-interference effects between VOCs and NO on performance SnO2 Pt-SnO2-based gas sensors. Sensing films were fabricated by screen printing. The results show that response sensors to under air is higher than Pt-SnO2, but lower Pt-SnO2. Pt-SnO2 sensor was significantly more responsive in background air. traditional single-component test, pure showed good selectivity at 300 °C 150 °C, respectively. Loading noble metal Pt improved sensitivity high...
Doped ceria, i.e.Ce1-xMxO2-with M being dopant metal, has been a focus of great attention for solid oxide fuel cells (SOFCs) due to their high oxygen conduction.In the past literature, dielectric relaxations in these materials have ascribed be caused by defect associates (MCeʺ-V̈) possessing different MCeʺ and V̈ distances.But we believe that with changing measurement analysis techniques, it is necessary invest our time re-examine already reported take detailed investigation underlying...
In mixed‐valence colossal dielectric materials, the room temperature Maxwell–Wagner response is commonly assigned, in past literature, to electrode effect, grain boundary or internal barrier layer capacitor effect. Another underlying phenomenon brushed aside, and that of adsorbance hydroxyl ions onto defect centers on surface material. The properties especially those having oxygen vacancies, are sensitive atmospheric moisture easily degrade humid environment. To study this a series LaFe 1 −...