A5059893553- Bone Tissue Engineering Materials
- Calcium Carbonate Crystallization and Inhibition
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Paleontology and Stratigraphy of Fossils
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- MXene and MAX Phase Materials
- Dental materials and restorations
- Advancements in Battery Materials
- Transition Metal Oxide Nanomaterials
- Advanced battery technologies research
- Conducting polymers and applications
- Catalytic Processes in Materials Science
- Additive Manufacturing and 3D Printing Technologies
- Electrochemical Analysis and Applications
- Advanced Sensor and Energy Harvesting Materials
- 2D Materials and Applications
- Glass properties and applications
- Catalysis and Oxidation Reactions
- Diamond and Carbon-based Materials Research
- Multiferroics and related materials
- Fuel Cells and Related Materials
- Copper-based nanomaterials and applications
- Ferroelectric and Piezoelectric Materials
Beihang University
2015-2024
Beijing Advanced Sciences and Innovation Center
2024
Zhengzhou University of Light Industry
2020-2021
Substrate–molecule vibronic coupling enhancement, especially the efficient photoinduced charge transfer (PICT), is pivotal to performance of nonmetal surface-enhanced Raman scattering (SERS) technology. Here, through developing novel two-dimensional (2D) amorphous TiO2 nanosheets (a-TiO2 NSs), we successfully obtained an ultrahigh enhancement factor 1.86 × 106. Utilizing Kelvin probe force microscopy (KPFM) technology, found that these 2D a-TiO2 NSs possessed more positive surface potential...
Tooth enamel, renowned for its high stiffness, hardness, and viscoelasticity, is an ideal model designing biomimetic materials, but accurate replication of complex hierarchical organization high-performance biomaterials in scalable abiological composites challenging. We engineered enamel analog with the essential structure at multiple scales through assembly amorphous intergranular phase (AIP)-coated hydroxyapatite nanowires intertwined polyvinyl alcohol. The nanocomposite simultaneously...
To develop next-generation lightweight, high-strength, and tough materials, new materials design strategies must be established. Nacre, consisting of 95 vol.% inorganic plates (CaCO3) 5 organic matrix (protein) in layered arrangements, is famous for its significant increase (three orders magnitude higher) toughness compared to monolithic aragonite has always been the model synthesis high mechanical performance artificial materials. In this review, we primarily introduce recent studies on...
Abstract Two‐dimensional (2D) nanomaterials show unique electrical, mechanical, and catalytic performance owing to their ultrahigh surface‐to‐volume ratio quantum confinement effects. However, ways simply synthesize 2D metal oxide nanosheets through a general facile method is still big challenge. Herein, we report generalized strategy large‐size ultrathin by using graphene (GO) as template in wet‐chemical system. Notably, the novel mainly relies on accurately controlling balance between...
Ceramic/polymer composite equipped with 3D interlocking skeleton (3D IL) is developed through a simple freeze-casting method, exhibiting exceptionally light weight, high strength, toughness, and shock resistance. Long-range crack energy dissipation enabled by structure considered as the primary reinforcing mechanism for such superior properties. The smart design strategy should hold place in developing future structural engineering materials.
A novel ternary artificial nacre is developed through a vacuum-assisted filtration method, with reinforced ultrathin amorphous alumina that grown in situ on the surface of GO. This simultaneously shows exceptional strength and toughness, which have, up to now, been considered be mutually exclusive. material will play role structuring future materials.
Inspired by nacre, this is the first time that using cross-linking of alginate with Ca ions to fabricate organic-inorganic nacre-inspired films we have successfully prepared a new class Ca2+ ion enhanced montmorillonite (MMT)-alginate (ALG) composites, realizing an optimum combination high strength (∼280 MPa) and toughness (∼7.2 MJ m-3) compared other MMT based artificial nacre. Furthermore, temperature performance composites (with maximum ∼170 MPa at 100 °C) along excellent transmittance,...
Abstract Improving the fracture resistance of nacre‐inspired composites is crucial in addressing strength‐toughness trade‐off. However, most previously proposed strategies for enhancing these have been limited to interfacial modification by polymer, which restricts mechanical enhancement. Here, a composite material consisting graphene oxide (GO) lamellae and nanocrystalline reinforced amorphous alumina nanowires (NAANs) has developed. The structure inspired nacre composed stacked GO...
In nacre, the excellent mechanical properties of materials are highly dependent on their intricate hierarchical structures. However, strengthening and toughening effects induced by buried inorganic–organic interfaces actually originate from various minerals/ions with small amounts, have not drawn enough attention yet. Herein, we present a typical class artificial nacres, fabricated graphene oxide (GO) nanosheets, carboxymethylcellulose (CMC) polymer, multivalent cationic (Mn+) ions, in which...
ConspectusAmorphous nanomaterials, with unique structural features such as long-range atomic disorder and nanoscale particle or grain sizes, possess some advantageous properties for a number of materials applications. For example, amorphous vanadium oxide exhibits record-high cycling stability supercapacitors. Several synthetic strategies have been developed to produce physical processing-based approaches including cutting, deposition, spinning, well chemical syntheses by solution solid...
Currently, the development of semiconducting metal oxide (SMO)-based gas sensors with innovative modification and three-dimensional (3D) structural designs has become a significant scientific interest due to their potential for addressing key technological challenges.
A three-dimensional (3D) hierarchical structure consisting of vertically aligned, double-sided, and self-supported WO<sub>3</sub> nanocolumn bundles has been successfully synthesized via acid-assisted (HCl) hydrothermal process, which proves to be an excellent NO<sub>2</sub>-sensing material at a low operating temperature.
Ceramic materials exhibit very high stiffness and extraordinary strength, but they typically suffer from brittleness. Amorphization size confinement are commonly used to reinforce materials. However, the inverse Hall-Petch effect shear-band softening usually limit further improvement of their performance under a critical size. With an optimum structure design, we demonstrate that dual-phase zirconia nanowires (DP-ZrO2 NWs) with nanocrystals embedded in amorphous matrix as strengthening phase...
Developing high-performance materials in physiological conditions to clinically repair stiff tissue for long lifespan remains a great challenge. Here, an enamel strategy is reported by efficiently growing biocompatible ZrO2 ceramic layer on defective through controllable hydrolysis of Zr4+ oral-tolerable conditions. Detailed analysis the grown indicates that amorphous without grain boundary and dislocation, which endows repaired with natural comparable mechanical performance (modulus ≈82.5...
The development of low-cost, high-performance catalysts at the atomic level has drawn scientists' attention due to high atom efficiency, unique structure, and potentially catalytic selectivity. Among atomically tailored catalysts, nanoclusters are particular interest because they represent an underexplored medium state between isolated single atoms typical nanoparticles. In this study, we report a wet-chemistry approach synthesize highly dispersed subnano-FeOx clusters anchored on ultrathin...
Precisely tailoring the oxidation state of single-atomic metal in heterogeneous catalysis is an efficient way to stabilize site and promote their activity, but realizing this approach remains a grand challenge date. Herein, class stable catalysts with well-tuned Pt by forming PtFe atomic bonds reported, which are supported defective Fe2 O3 nanosheets on reduced graphene oxide (PFARFNs). These as-synthesized materials can greatly enhance catalytic stability, selectivity for diboration...
Progress toward developing metal implants as permanent hard-tissue substitutes requires both osteointegration to achieve load-bearing support, and energy-dissipation prevent overload-induced bone resorption. However, in existing these two properties can only be achieved separately. Optimized by natural evolution, tooth-periodontal-ligaments with fiber-bundle structures efficiently orchestrate energy dissipation, which make tooth-bone complexes survive extremely high occlusion loads (>300 N)...