A5062096770- Dielectric materials and actuators
- Advanced Sensor and Energy Harvesting Materials
- Ferroelectric and Piezoelectric Materials
- Polymer Nanocomposites and Properties
- Synthesis and properties of polymers
- Electromagnetic wave absorption materials
- Polymer crystallization and properties
- Supercapacitor Materials and Fabrication
- biodegradable polymer synthesis and properties
- Conducting polymers and applications
- Advanced Nanomaterials in Catalysis
- Advanced biosensing and bioanalysis techniques
- Nanocluster Synthesis and Applications
- Advanced Polymer Synthesis and Characterization
- High voltage insulation and dielectric phenomena
- Nanoplatforms for cancer theranostics
- Electrochemical sensors and biosensors
- Dendrimers and Hyperbranched Polymers
- Aluminum Alloys Composites Properties
- Polymer composites and self-healing
- Nanofabrication and Lithography Techniques
- Enhanced Oil Recovery Techniques
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Anodic Oxide Films and Nanostructures
Xi'an Jiaotong University
2014-2024
China XD Group (China)
2014-2021
Chemical Synthesis Lab
2019
Hong Kong Polytechnic University
2011
University of Reading
2008
Northwestern Polytechnical University
2004-2005
In this report, a simple solution-cast method was employed to prepare poly(dopamine) (PDA) encapsulated BaTiO3 (BT) nanoparticle (PDA@BT) filled composites using PVDF matrix cross-linked by the free radical initiator. The effects of both particle encapsulation and cross-linking on mechanical dielectric properties were carefully investigated. results suggested that introduction BT particles improved permittivity ∼30 at 100 Hz when contents only 7 wt % utilized. This attributed enhanced...
Poor compatibility of polymer/ceramic composites used as high-pulse capacitors with high permittivity suffers from the reduced breakdown strength ( Eb) and lowered energy density Ue). Herein, mussel-inspired poly(dopamine) (PDA)-modified BaSrTiO3 (mBST) nanoparticle poly(vinylidene fluoride) (PVDF) matrix are bonded together to fabricate nanocomposites a cross-linked network enhanced compatibility. The significantly improved Eb 466 MV/m highest Ue 11.0 J/cm3 for PVDF-based polymer/BST have...
Metal–organic frameworks (MOFs) are significant useful molecular materials as a result of their high surface area and flexible catalytic activities by tuning the metal centers ligands. MOFs have attracted great attention efficient nanozymes recently; however, it is still difficult to understand polymetallic for enzymatic catalysis because complicated structure interactions. Herein, bimetallic NiFe2 MOF octahedra were well prepared exhibited enhanced peroxidase-like activities. The...
Metal–organic frameworks (MOFs) are widely used to mimic enzymes for catalyzing chemical reactions; however, low enzyme activity limit their large-scale application. In this work, gold nanorods/metal–organic (Au NRs/Fe-MOF) hybrids were successfully synthesized photo-enhanced peroxidase-like catalysis and surface-enhanced Raman spectroscopy (SERS). The enzyme-like of Au NRs/Fe-MOF was significantly enhanced under localized surface plasmon resonance (LSPR), because the hot electrons produced...
Deposition of deep-trap, high-temperature-resistant layers by a chemical vapor deposition (CVD) process enables non-destructive and controllable preparation high-performance high-temperature polymer dielectric films.
Polymer-based nanodielectrics have been intensively investigated for their potential application as energy storage capacitors. However, relatively low density (Ue) and discharging efficiency (η) may greatly limit practical usage. In present work, high insulating two-dimensional boron nitride nanosheets (BNNS), were introduced into a linear dielectric polymer (P(VDF-TrFE-CTFE)-g-PMMA) matrix to enhance the performance of composite. Thanks surface coating polydopamine (PDA) on BN nanosheets,...
Abstract The most important polymer film used in commercial capacitors is biaxially oriented polypropylene (BOPP), which could be produced by sequentially or simultaneously biaxial orientation after the melt‐extrusion. In order to disclose influence of stretching technique on properties films, BOPP films with varied thickness were fabricated sequential and simultaneous orientation, respectively. Compared stretched crystal grains are more isotropically dispersed. As temperature increases, all...
Nicotinamide adenine dinucleotide (NADH) is central to metabolism and implicated in various diseases. Herein, nanohybrids of gold nanostars metal–organic frameworks are devised demonstrated as a dual-mode NADH sensor, for which colorimetric detection enabled by its peroxidase-like nanozyme property Raman realized surface-enhanced scattering with the limit low 28 pM. More importantly, this probe enables real-time SERS monitoring living cells, providing unique tool investigate dynamic cellular...
Polymer nanocomposite dielectrics with high insulation and energy storage density (Ue) are the focus of studies on lightweight integrated power devices. Based problem low performance caused by negative correlation between breakdown strength (Eb) dielectric constant (ɛr), a unique design bicontinuous structural anisotropic nanocomposites is proposed incorporating high-ɛr Ba0.6Sr0.4TiO3 nanofiber (BST nf) arrays oriented wide bandgap BN nanosheets. Continuous polarization enhancement achieved...
To realize linear-like dielectric characteristics in normal ferroelectric poly(vinylidene-co-trifluoroethylene) (P(VDF-TrFE)), poly(ethyl methacrylate) (PEMA) was grafted onto poly(vinylidene fluoride-co-trifluoroethylene-co-chlorotrifluoroethylene) as side chains. The introduction of rigid PEMA segments resulted the decreased crystallinity, crystal and domain size. As a result, reduced loss improved modulus, therefore enhanced breakdown strength obtained graft copolymers. Moreover, low...
This work presents a facile strategy to significantly boost the capacitive performance of aromatic polymer with simple preparation process. At 150 °C, composite films exhibit remarkable comparative performance, U e = 10.1 J cm −3 and η > 90%.
Mesoporous silica significantly enhanced sound absorption of silicone rubber<italic>via</italic>prolonging the propagation way and energy dissipated acoustic wave.