A5100352495- Magnetic and transport properties of perovskites and related materials
- Magnetic properties of thin films
- Electromagnetic wave absorption materials
- Multiferroics and related materials
- Magnetic Properties of Alloys
- Graphene research and applications
- Advanced Condensed Matter Physics
- Shape Memory Alloy Transformations
- Magnetic Properties and Applications
- Advanced Antenna and Metasurface Technologies
- Magnetic Properties and Synthesis of Ferrites
- Metallic Glasses and Amorphous Alloys
- ZnO doping and properties
- Advancements in Battery Materials
- Rare-earth and actinide compounds
- Metamaterials and Metasurfaces Applications
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Ferroelectric and Piezoelectric Materials
- Electrocatalysts for Energy Conversion
- Theoretical and Computational Physics
- Carbon Nanotubes in Composites
- Anodic Oxide Films and Nanostructures
- 2D Materials and Applications
- Advanced Thermoelectric Materials and Devices
Guangdong Ocean University
2023-2025
Shanghai Innovative Research Center of Traditional Chinese Medicine
2023-2025
Nanjing University of Information Science and Technology
2025
Peking University
2025
Nanjing University
2015-2024
Collaborative Innovation Center of Advanced Microstructures
2015-2024
Renji Hospital
2024
Shanghai Jiao Tong University
2024
Changchun University of Technology
2024
Taiyuan University of Technology
2016-2023
The porous three-dimensional (3-D) flower structures assembled by numerous ultrathin flakes were favor for strengthen electromagnetic absorption capability. However, it still remains a big challenge to fabricate such kind of materials. In this study, an easy and flexible two-step method consisting hydrothermal subsequent annealing process have been developed synthesize the 3-D flower-like Co/CoO. Interestingly, we found that suitable heat treatment temperature played vital role on structure,...
A novel FeCo nanoparticle embedded nanoporous carbon composite (Fe–Co/NPC) was synthesized via in situ carbonization of dehydro-ascorbic acid (DHAA) coated Fe3O4 nanoparticles encapsulated a metal–organic framework (zeolitic imidazolate framework-67, ZIF-67). The molar ratio Fe/Co significantly depends on the content ZIF-67. composites filled with 50 wt% Fe–Co/NPC-2.0 samples paraffin show maximum reflection loss (RL) −21.7 dB at thickness 1.2 mm; addition, broad absorption bandwidth for RL...
Hierarchical hollow carbon@Fe@Fe<sub>3</sub>O<sub>4</sub> nanospheres were synthesized by a simple template method and another pyrolysis process.
The rod-like structure of MnO<sub>2</sub>@Fe is apt to convert the electromagnetic wave microcurrent and then attenuate it.
Two coated titanium oxide (TiO<sub>2</sub>) routes are designed to prepare core–shell Co@NPC@TiO<sub>2</sub> (NPC: nanoporous carbon) and C–ZIF-67@TiO<sub>2</sub> (ZIF-67: zeolitic imidazolate framework-67) with a multi-interfaced yolk–shell structure.
In this paper, we designed a novel core–shell composite for microwave absorption application in which the α-Fe2O3 and porous CoFe2O4 nanospheres served as core shell, respectively. Interestingly, during solvothermal process, solvent ratio (V) of PEG-200 to distilled water played key role morphology irregular flake, coin-like, thinner coin-like forms can be produced with ratios 1:7, 1:3, 1:1, The 70 nm diameter were generated shell α-Fe2O3. It should noted that coating layer did not damage...
An N‐superdoped 3D graphene network structure with an N‐doping level up to 15.8 at% for high‐performance supercapacitor is designed and synthesized, in which the foam high conductivity acts as skeleton nested reduced oxide arogels. This material shows a highly conductive interconnected porous (3.33 S cm −1 ), large surface area (583 m 2 g low internal resistance (0.4 Ω), good wettability, great number of active sites. Because multiple synergistic effects these features, supercapacitors based...
Abstract Doping of low-dimensional graphitic materials, including graphene, graphene quantum dots and single-wall carbon nanotubes with nitrogen, sulfur or boron can significantly change their properties. We report that simple fluorination followed by annealing in a dopant source superdope materials high level N, S B. The superdoping results the following doping levels: (i) for 29.82, 17.55 10.79 at% N-, S- B-doping, respectively; (ii) dots, 36.38 N-doping; (iii) nanotubes, 7.79 10.66 N-...
A novel yolk-shell structure of cobalt nanoparticle embedded nanoporous carbon@carbonyl iron (Co/NPC@Void@CI) was synthesized via metal organic chemical vapor deposition (MOCVD) and subsequent calcination treatment. The in situ generation void layer, which originated from the shrink a Co-based zeolitic imidazolate framework (ZIF-67) during carbonization, embodies distinct advantage compared to conventional template method. Thanks introduction custom-designed dielectric/magnetic media...
Atomically thin 2D carbon nitride sheets (CNS) are promising materials for photocatalytic applications due to their large surface area and very short charge-carrier diffusion distance from the bulk surface. However, compared counterpart, CNS' always suffer an enlarged bandgap thus narrowed solar absorption range. Here, approach significantly increase of atomically CNS via fluorination followed by thermal defluorination is reported. This can greatly visible-light extending edge up 578 nm. The...
The promotion of magnetic field on catalytic performance has attracted extensive attention for a long time, and substantial improvements have been achieved in some catalysis fields. However, because the Zeeman energy is several orders magnitude weaker, seems unable to alter band structure negligible effect semiconductor photocatalytic performance, which makes this task great challenge. On other hand, spin-related behavior usually plays an important role determining performance. For example,...
Graphene has evoked extensive interests for its abundant physical properties and potential applications. It is reported that the interfacial electronic interaction between metal graphene would give rise to charge transfer change of graphene, leading some novel electrical magnetic in metal-graphene heterostructure. In addition, large specific surface area, low density high chemical stability make act as an ideal coating material. Taking full advantage aforementioned features we synthesized...
Solid-state thermoelectric technology, interconverting heat to electrical energy, offers a promising solution for relaxing global energy problems. A high dimensionless figure of merit ZT is desirable high-efficiency power generation. To date, materials research has focused on increasing the material's ZT. Here we first fabricated phase-separated Sn1-xPbxSe by hydrothermal synthesis. We demonstrate that simultaneous optimization factor and significant reduction in thermal conductivity can be...
Pseudocapacitors store energy on/near the surface of electrode materials through redox reactions, whose capacitive activity thus depends on electronic states and interface, conductivity materials.
It is widely accepted that building a core–shell structure an effective way to modify impedance matching behavior and induce interfacial polarization relaxtion. In this work, we adopted novel impregnation process subsequent calcination treatment construct Fe3O4 nanocrystals/mesoporous carbon hollow spheres (MCHS) hybrids. From the perspective of microwave absorption, MCHS possess favorable dielectric loss ability lightweight features. could produce magnetic regulate characteristics. Besides,...
Simply and effectively achieving the tunability of composition chemical state each component remains a challenge for modifying electromagnetic performance metal–organic-framework-derived (MOF-derived) composites. In this work, quaternary ZnO/Fe/Fe3C/carbon composites have been successfully synthesized by thermal decomposition FeIII-MOF-5. The can be controlled changing heating temperature. detail, with increasing temperature, Fe element would transformed from Fe3+ to Fe3C Fe, which also...
The hybrid approach offers opportunities to simultaneously exploit the features of capacitive (especially carbon) and faradaic (redox electroactive) materials increase energy density power supercapacitors. To achieve an optimized overall electrochemical performance, we have synthesized a supercapacitor electrode consisting vertically aligned Ni3S2 mesoporous nanosheets on three-dimensional reduced graphene oxide (Ni3S2/3DrGO) supported by Ni foam with controllable composition morphological...
The optimized electromagnetic (EM) parameters are highly indispensable for outstanding microwave absorbers. Generally speaking, it is very necessary to suitably improve permittivity and permeability of the materials. combination magnetic/dielectric materials a good choice. Herein, irregular shaped FeNi/C composites were synthesized in N2 atmosphere with unsatisfied EM parameters. To further optimize enhance absorption abilities, constructing one-dimensional (1D) structure also an excellent...