- Nanowire Synthesis and Applications
- Thin-Film Transistor Technologies
- Silicon Nanostructures and Photoluminescence
- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials for catalytic reactions
- Solid State Laser Technologies
- Photonic Crystals and Applications
- Conducting polymers and applications
- Photorefractive and Nonlinear Optics
- Copper-based nanomaterials and applications
- Digital Holography and Microscopy
- Supercapacitor Materials and Fabrication
- Optical measurement and interference techniques
- Image Processing Techniques and Applications
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Optical Coatings and Gratings
- Gas Sensing Nanomaterials and Sensors
- Organic Electronics and Photovoltaics
- Advanced Photocatalysis Techniques
- Nanopore and Nanochannel Transport Studies
- Surface Modification and Superhydrophobicity
- Polymer composites and self-healing
- Plasmonic and Surface Plasmon Research
- Tactile and Sensory Interactions
Yanshan University
2015-2024
State Key Laboratory of Metastable Materials Science and Technology
2020-2024
Hospital of Hebei Province
2018-2023
State Key Laboratory of High Field Laser Physics
2006
Chinese Academy of Sciences
2006
Integrating nitrogen species into sp2-hybridized carbon materials has proved an efficient means to improve their electrochemical performance. Nevertheless, inevitable mixture of in materials, due the uncontrolled conversion among different configurations involved synthesizing nitrogen-doped largely retards precise identification electrochemically active for specific reactions. Here, we report preparation single pyrrolic N-doped (SPNCMs) with a tunable content from 0 4.22 at.% based on...
The excellent microwave absorption performance of the rose-like porous Fe@C is due to enhancement matched impedance and collective multiple loss mechanism.
UV-triggered self-healing of single microcapsules has been a good candidate to enhance the life polymer-based aerospace coatings because its rapid healing process and chemistry based on an accurate stoichiometric ratio. However, free radical photoinitiators used in commonly suffer from possible deactivation due presence oxygen space environment. Moreover, entrapment polymeric into often involves elevated temperature or strong solvent, probably leading swelling degradation polymer shell,...
An improved sol-gel technique was utilized to synthesize the Eu3+-doped bismuth vanadate (BiVO4) photocatalysts, resulting in enhanced photocatalytic activity. The properties and structural composition of catalyst were rigorously examined by XRD, SEM, EDS, XPS, DRS. XRD analysis confirmed successful incorporation Eu3+ into host lattice BiVO4. measurements demonstrated that doping significantly efficiency BiVO4, with 7% BiVO4 sample exhibiting highest boosting can be caused additional oxygen...
We propose a numerical and totally automatic phase aberration compensation method in digital holographic microscopy. The aberrations are extracted nonlinear optimization procedure which the variation of reconstructed object wave is minimized. Not only curvature but also high-order could be corrected without extra devices. correction directly carried out with wrapped map, not affected by unwrapping or fitting errors. Numerical simulation proves that proposed more accurate than conventional...
An air-breathing chemical self-charge concept of oxygen-enriched carbon cathode. The material with abundant catechol groups. Rapid air-oxidation self-charging has drawn considerable attention due to its excellent ability achieve environmental energy harvesting, conversion and storage without an external power supply. However, most designs assembled by multiple materials increase the transfer loss; supply is generally limited climate meteorological conditions, hindering potential application...
A soft template-assisted redox strategy has been developed to fabricate core–satellite Fe<sub>3</sub>O<sub>4</sub>@PPy/Pd nanocomposites as efficient nanocatalysts for reduction of nitroaromatics.
High conductivity, low impedance, and high biological adaptability are essential characteristics of the materials used to acquire bioelectrical information. Here, we report on a wearable sensor with stable accurate signal detection for data acquisition based an ion-conducting hydrogel conductivity. The proposed is obtained by adding hydroxypropyl methyl cellulose (HPMC) into poly(vinyl alcohol) (PVA) matrix form physical cross-linking. prepared has extremely electrical conductivity after...
We demonstrate a compact and efficient Ho:YLF slab laser that is pumped by self-made Tm:YAP laser. The maximum output power of 125 W at 2064 nm was obtained with the incident pump 245 W. To best our knowledge, this first report for an oscillator to reach hundred-watts-level power. slope efficiency respect 62.5%, optical-to-optical conversion 51%. RMS instability measured be 0.24% in 30 min. beam quality factors <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline">...
A rewritable photonic crystal (PC) paper as an environmentally friendly and low-resource-consuming material for information storage spreading has gradually become a research hotspot. In this work, novel PC with inkless writing double-sided rewritability properties was developed. epoxy resin exhibiting inverse opal structure bright structural color fabricated using the sacrificial template method. Carbon black doped into to increase saturation purity while preventing light transmission...
Abstract Ni‐based magnetic catalysts exhibit moderate activity, low cost, and reusability in hydrogenation reactions. However, Ni nanoparticles anchored on supports commonly suffer from undesirable agglomeration during catalytic reactions due to the relatively weak affinity of support for nanoparticles. A hierarchical yolk–shell Fe@SiO 2 /Ni catalyst, with an inner movable Fe core ultrathin SiO shell composed nanosheets, was synthesized a self‐templating reduction strategy 3 O 4 @nickel...
SiO2-based microcapsules containing hydrophobic molecules exhibited potential applications such as extrinsic self-healing, drug delivery, due to outstanding thermal and chemical stability of SiO2. However, construct with both high encapsulation loading long-term structural is still a troublesome issue, limiting their further utilization. We herein design single-batch route, combined interfacial in-situ polymerization strategy, fabricate epoxy-containing stability. The final preserve 85.7 wt%...
Many studies widely used SiO2@Ag composite nanospheres for surface enhanced Raman scattering (SERS), which mainly contributes to electromagnetic enhancement. In addition experiments, previous simulations mostly adopted a two-dimensional model in SERS research, resulting the three-dimensional information being folded and masked. this paper, we simulate electric field distribution of nanospheres. It is found that when Ag nanoparticles are distributed densely on SiO2 nanospheres, light cannot...
Abstract Yolk–shell magnetic nanoparticles@nitrogen‐enriched Carbon nanostructures with a core and hollow nitrogen‐enriched carbon shell exhibit considerable promise in various applications, such as drug delivery, heterogenous catalysts, removal of metal ions organic pollutants, screening biomolecules, due to their strong response, unique cavities, the selective absorption ability groups. However, complicated synthesis always involves possible surface modification, layer‐by‐layer deposition...