A5041128169- Electronic and Structural Properties of Oxides
- Intermetallics and Advanced Alloy Properties
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- Catalytic Processes in Materials Science
- Quasicrystal Structures and Properties
- MXene and MAX Phase Materials
- nanoparticles nucleation surface interactions
- Advanced Photocatalysis Techniques
- Magnesium Alloys: Properties and Applications
- Microstructure and mechanical properties
- Magnetic properties of thin films
- Multiferroics and related materials
- ZnO doping and properties
- Ion-surface interactions and analysis
- Copper-based nanomaterials and applications
- Semiconductor materials and interfaces
- Diamond and Carbon-based Materials Research
- Magnetic Properties and Synthesis of Ferrites
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Advanced ceramic materials synthesis
- Metal and Thin Film Mechanics
- Membrane Separation Technologies
- Luminescence Properties of Advanced Materials
Chinese Academy of Sciences
2010-2025
University of Science and Technology of China
2021-2025
Ji Hua Laboratory
2021-2024
East China University of Science and Technology
2021-2024
Shanghai Institute of Optics and Fine Mechanics
2021-2024
Commonwealth Scientific and Industrial Research Organisation
2010-2023
Southwest Petroleum University
2014-2023
Kunming University of Science and Technology
2023
Northwest Institute of Nuclear Technology
2023
Institute of Modern Physics
2023
Developing iron-based catalysts with superior activity and stability is a long-term goal for peroxymonosulfate (PMS) activation in advanced oxidation processes. Combining the confined interlayer growth strategy melt infiltration under dry-chemical conditions, we successfully synthesized ultrathin 2D Fe3O4 nanosheets monolayer thickness of about 1 nm. Atomic force microscopy, CS-corrected high-resolution transmission electron X-ray photoelectron spectroscopy, absorption fine structure, etc....
Bi3TiNbO9, a layered ferroelectric photocatalyst, exhibits great potential for overall water splitting through efficient intralayer separation of photogenerated carriers motivated by depolarization field along the in-plane a-axis. However, poor interlayer transport out-of-plane c-axis, caused significant barrier between layers, leads to high probability carrier recombination and consequently results in low photocatalytic activity. Here, we have developed an photocatalyst consisting Bi3TiNbO9...
Diffuse streaks centered at q=(0,\ifmmode\pm\else\textpm\fi{}(2/5,0) and (0,\ifmmode\pm\else\textpm\fi{}(1/2,0) have been observed in annealed ${\mathrm{Ba}}_{2}$${\mathrm{YCu}}_{3}$${\mathrm{O}}_{7\mathrm{\ensuremath{-}}\mathrm{\ensuremath{\delta}}}$ with 0.3\ensuremath{\lesssim}\ensuremath{\delta}\ensuremath{\lesssim}0.4, which has a ${T}_{c}$ of 60 K Meissner effect equivalent to the 90 phase. We interpret presence diffuse streaking as result short-range oxygen vacancy ordering. The...
The complex and intriguing properties of the ferrimagnetic half metal magnetite (Fe3O4) are continuing fundamental interest as well being important for practical applications in spintronics, magnetism, catalysis medicine. There is considerable speculation concerning role ubiquitous antiphase boundary (APB) defects magnetite, however, direct information on their structure has remained challenging to obtain. Here we combine predictive first principles modelling with high-resolution...
Magnetoelectric composite thin films hold substantial promise for applications in novel multifunctional devices. However, there are presently shortcomings both the extensively studied bilayer epitaxial (2-2) and vertically architectured nanocomposite (1-3) film systems, restricting their applications. Here we design a growth strategy to fabricate an heterostructure with magnetic quasiparticles (0) embedded ferroelectric matrix (3) by alternately growing layers within film. The new...
Atomic-scale analysis of the cation valence state distribution will help to understand intrinsic features oxygen vacancies (VO ) inside metal oxide nanocrystals, which, however, remains a great challenge. In this work, cerium states across ultrafine CeO2 nanocubes (NCs) perpendicular {100} exposed facet is investigated layer-by-layer using state-of-the-art scanning transmission electron microscopy-electron energy loss spectroscopy. The effect size on Ce NCs demonstrated as changed from 11.8...
We report a substantial improvement of piezoelectricity for poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) copolymer films by introducing carbon black (CB) into the PVDF-HFP to form PVDF-HFP/CB composite films. The optimized output voltage film at an optimal CB content 0.5 wt% is found be 204% pristine film. Its harvested electrical power density 464% and 561% using ac dc circuits, respectively. Through Fourier transform infrared spectroscopy analysis, differential scanning...
Abstract Reconstructive phase transitions involving breaking and reconstruction of primary chemical bonds are ubiquitous important for many technological applications. In contrast to displacive transitions, the dynamics reconstructive usually slow due large energy barrier. Nevertheless, transformation from β - λ -Ti 3 O 5 exhibits an ultrafast reversible behavior. Despite extensive studies, underlying microscopic mechanism remains unclear. Here, we discover a kinetically favorable in-plane...
The Internet has become a popular venue for facilitating sex networking men who have with (MSM).The study aimed to evaluate the effectiveness of opinion leaders (iPOL) in disseminating information about human immunodeficiency virus (HIV), increasing frequency HIV testing, and reducing risky behaviors among MSM Taiwan.A quasi-experimental nonequivalent control website comparison was used estimate iPOL. A community-level intervention, iPOL, conducted at Facebook social top1069 as control....
Diamond and cubic boron nitride (c-BN) are the top two hardest materials on Earth. Clarifying how seemingly incompressible can actually join represents one of most challenging issues in science. Here we apply temperature gradient method to grow c-BN single crystals diamond report a successful epitaxial growth. By transmission electron microscopy, reveal novel misfit accommodation mechanism for {111} diamond/c-BN heterointerface, that is, lattice be accommodated by continuous stacking fault...
The ionic conduction and electrochemical thermal stabilities of the LiBH4–LiCl solid-state electrolyte were investigated for use in bulk-type all-solid-state lithium-sulfur batteries. exhibiting a lithium conductivity at 373 K, forms reversible interface with metal electrode has wide potential window up to 5 V. By means high-energy mechanical ball-milling technique, we prepared composite powder consisting elemental sulfur mixed conductive additive, i.e., Ketjen black Maxsorb. In that powder,...
Incoherent interfaces with large mismatches usually exhibit very weak interfacial interactions so that they rarely generate intriguing properties. Here we demonstrate unexpected strong at the incoherent AlN/Al2O3 (0001) interface a mismatch by combining transmission electron microscopy, first-principles calculations, and cathodoluminescence spectroscopy. It is revealed have significantly tailored atomic structure electronic Misfit dislocation networks stacking faults are formed this...
Interplay among various collective electronic states such as charge density wave and superconductivity is of tremendous significance in low-dimensional electron systems. However, the atomistic physical nature structures underlying interplay exotic states, which critical to clarifying its effect on remarkable properties systems, remains elusive, limiting our understanding superconducting mechanism. Here, we show evidence that an ordering selenium sulphur atoms surrounding tantalum within...
Clarifying how the atomic structure of interfaces/boundaries in materials affects magnetic coupling nature across them is significant academic value and will facilitate development state-of-the-art devices. Here, by combining atomic-resolution transmission electron microscopy, atomistic spin-polarized first-principles calculations, differential phase contrast imaging, we conduct a systematic investigation electronic structures individual Fe3O4 twin boundaries (TBs) determine their...
Graphene oxide (GO) has triggered significant attention as a new type of self‐assembly membrane material. However, the low filtration flux and unstable performance GO limit its practical application. Hence, in this work, layered double hydroxides (LDHs), 2D material with double‐layer channel structure positive electricity, were self‐assembled at weight ratio 7:3 by electrostatic interaction. Then, GO/LDH hybrids combined polydopamine (PDA) to obtain stable high‐flux GO‐based membranes...
Functionalizing glass with optically active quantum dots has shown great potential in near-infrared bioimaging and optical communication. However, the size distribution of is hard to control by traditional quenching method due extremely high processing temperature (∼1300 °C), resulting unexpected transmission loss luminescent embedded a composite. Herein, we developed nanoconfined synthesis lead sulfide (PbS) mesoporous aluminosilicate matrix at relatively low 600 °C adjustable broadband...
Nanotwinned materials have recently attracted intense interest since they often exhibit excellent mechanical properties that are far superior to those of the corresponding single crystals. However, how nanotwinned structures affect physical functional remains almost unexplored. In this study, we demonstrate ferrimagnetism in a antiferromagnetic Cr2O3 thin film. The film grown on SrTiO3 substrate comprises high-density nanotwins and exhibits an obvious room-temperature ferrimagnetic property,...