A5001930319- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Advanced Materials and Mechanics
- Advanced Sensor and Energy Harvesting Materials
- Multiferroics and related materials
- Radioactive element chemistry and processing
- Synthesis and properties of polymers
- Microwave Dielectric Ceramics Synthesis
- Carbon Nanotubes in Composites
- Polymer Foaming and Composites
- MXene and MAX Phase Materials
- Aluminum Alloys Composites Properties
- Underground infrastructure and sustainability
- Electronic and Structural Properties of Oxides
- Smart Grid and Power Systems
- Electrochemical Analysis and Applications
- Polymer composites and self-healing
- Public-Private Partnership Projects
- Supercapacitor Materials and Fabrication
- Tribology and Wear Analysis
- Smart Materials for Construction
- Catalysis and Oxidation Reactions
- Photorefractive and Nonlinear Optics
- Radioactivity and Radon Measurements
- Selenium in Biological Systems
Harbin Institute of Technology
2022-2024
Fudan University
2022-2024
Yantai Nanshan University
2022
Lanzhou University
2016-2019
Sichuan University
2018-2019
Shandong Jianzhu University
2019
Zhejiang University
2006
The integration of different shape manipulation could greatly expand the versatility and functionality smart materials, for which achievement synergism control is crucial. Here, we seek to create one kind polyimide with integrated multiple manipulations by constructing chemical network bearing azobenzene as a side chain. Trifunctional cross-linkers serving net points render thermal-induced memory effects, enables transformation. Azobenzene photoresponsive group employed achieve photofixity...
A new type of porous kaolin/NaY composite (KL-NY) with a large specific surface area and pore sizes was synthesized through one-step crystallization process, rare earth-modified KL-NY-supported Pd-Pt catalysts were studied for benzene combustion. The results indicated that the volume KL-NY after calcination 0.298 cm(3)/g 365 m(2)/g, respectively, exhibiting appropriate structure good thermal stability. Catalysts earth metals greatly enhanced activity Pd/KL-NY, addition Pt Ce into Pd catalyst...
A newly designed azo-PI, without pre-stretching or polarized-light irradiation, exhibits reversible bending behaviors under alternate UV and visible light providing a facile route to deformable 2D/3D structure actuators.
Abstract Because of high mobility, the immobilization long-lived fission product 79 Se (often existed as Se(IV) and Se(VI) anions) is a critical consideration in repository high-level radioactive waste. In this work, Fe-OOH modified bentonite (Fe-OOH-bent) was synthesized potential filling material site for effective adsorption present migration different species Se. The adsorbent characterized using FT-IR, XRD, XFS, zeta BET to clarify its physical properties, compositions structures. A...
An extremely high accumulation and retention of technetium in marine plants, especially brown seaweed, makes it a unique bioindicator technetium. In the present work, novel approach was developed for speciation analysis wherein series biochemical separations exploited to isolate different species Inductively coupled plasma mass spectrometry (ICP-MS) applied measurement 99Tc after thorough radiochemical preconcentration purification. The results show that distribution seaweed is relatively...
The macroscopic properties of piezoelectric materials can be profoundly influenced by stress. In this research, thermodynamic potential parameters K0.4Na0.6NbO3 (KNN) single crystals have been experimentally quantified to assess the effects Leveraging Landau theory, it has identified that application biaxial tensile stress causes a significant elevation in both property and phase transition temperature KNN crystals. This remarkably extends their working range improves material's applicated...
Pyroelectric materials have promising applications in small generators and energy harvesters, which play the role of converting thermal into electricity. In particular, open-circuit voltage is closely related to efficiency harvesting. Therefore, it necessary prepare pyroelectric with high open circuit voltage. this work, a harvester based on KNN single crystals grown by top-seeded solution-growth method. The as 47 V. Meanwhile, remains almost 90% after 50 cycles, exhibited excellent cycle...
KTa1−xNbxO3 crystals exhibit excellent piezoelectric, ferroelectric, and electro-optical properties near the phase transition point, owing to evolution of polar nanoregions (PNRs). This paper discusses physical PNRs in three characteristic temperature ranges analyzes dielectric relaxation crystals. The effects different heating rates initial temperatures on pyroelectric effect are discussed, influence small electric fields increasing coefficient is investigated. polarization characteristics...
Since the domain wall photovoltaic effect (DW-PVE) is reported in BiFeO3 film, investigations on properties ferroelectrics have appealed more and attention. In this work, we employed two Fe doped KTa1-xNbxO3 (Fe:KTN) single crystals tetragonal phase orthorhombic phase, respectively, possessing similar net polarization along [001]C direction, to quantize contribution from bulk (BPVE) DW-PVE Fe:KTN. The results show that there are significant enhancements of open-circuit voltages (VOC = -6.0...
Abstract Based on the industrialized reduced graphene oxide (RGO) product, polyetherimide (PEI)/RGO composite foam was prepared by a water‐vapor‐induced phase separation process incorporation of polysiloxane (SI) as compatibilizer. It found that PEI/SI molecules were intercalated into RGO layers through strong interfacial interaction and with increased layer thickness uniformly distributed in PEI matrix. The possessed homogeneous spherical‐like cell structure narrow size distribution low...
Large E in induces a more ordered, large-size striated domain structure. The Mn: KNN single crystal with large CG has uniform orientation of spontaneous polarization and macro-piezoelectric properties (83 pC N −1 ).
A labyrinthine-domain-structure pattern, contributing to the high piezoelectric performance, is observed via a PFM in K 0.41 Na 0.59 Ta Nb O 3 with polymorphic phase transition boundary.
Carbon nanomaterials (such as graphene, carbon nanotubes and nano-diamond) are widely used to synthesize metal matrix composites strengthen metals such Ti, Al Cu. However, the severe aggregation of these nano-scale reinforcements within has been a serious issue achieve high-performance composites. In this work, we employed an in-situ co-precipitation method decorate reduced graphene oxides with aluminium oxide nanoparticles (i.e. rGONs@Al2O3), which were introduced into Ti-6Al-4V using...