A5102841201- Advanced ceramic materials synthesis
- Mesoporous Materials and Catalysis
- Catalytic Processes in Materials Science
- Nuclear materials and radiation effects
- Glass properties and applications
- Advanced materials and composites
- Microwave Dielectric Ceramics Synthesis
- Ferroelectric and Piezoelectric Materials
- Aluminum Alloys Composites Properties
- Zeolite Catalysis and Synthesis
- Luminescence Properties of Advanced Materials
- Bone Tissue Engineering Materials
- Catalysis and Oxidation Reactions
- Intermetallics and Advanced Alloy Properties
- MXene and MAX Phase Materials
- Conducting polymers and applications
- Metal and Thin Film Mechanics
- Organic Electronics and Photovoltaics
- Aerogels and thermal insulation
- High-Temperature Coating Behaviors
- Polyoxometalates: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Nanomaterials for catalytic reactions
- Silicone and Siloxane Chemistry
Fudan University
2023-2025
China Academy of Launch Vehicle Technology
2023
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2023
Tianjin University
2023
Central South University
2022-2023
Purdue University West Lafayette
2021
Northeast Forestry University
2020
Institut Supérieur d’Informatique, de Modélisation et de leurs Applications
2015
Université Clermont Auvergne
2015
Chinese Academy of Sciences
2001-2011
Wide band-gap semiconductorzinc oxide nanoclusters have been prepared in the channels of MCM-41 materials by functionalizing with ethylenediamine groups, absorbing zinc cations, and calcinating at high temperatures. The products characterized XRD, TEM, EDS, nitrogen adsorption desorption, UV−vis PL spectroscopies. ZnO clusters were mostly confined dispersed pores mesoporous hosts. No large particles on external surfaces detected. A massive blue-shift absorption spectra has observed band...
Abstract A facile method has been developed to synthesize nanoporous manganese and nickel oxides with polyhedron particle morphologies, high surface areas narrow pore distributions by controlled thermal decomposition of the oxalate precursors. This can be extended using other kinds salt precursors prepare a series metal oxides. The heating rate, calcination temperature size are important factors get well‐defined structures. XRD, TG‐DTA, TEM, SEM, XPS, wet chemical titration N 2 sorption...
Nanosized ZnS has been prepared inside MCM-41 hosts by two related schemes, both of which are derived from surface modification methods. The ZnS-containing samples with and without the functional groups (ethylenediamine in this case) were designated as ZnS−ED−MCM-41 ZnS−MCM-41(cal), respectively. ZnS−MCM-41 composites characterized powder X-ray diffraction patterns, transmission electron microscopy, energy disperse spectra, N2 adsorption−desorption isotherms, UV−vis diffuse reflectance...
In this paper, we present an easy template-free route to synthesize mesoporous Fe2O3 with a high surface area of 111 m2/g and narrow pore distribution at 4.4 nm. This strategy has significant advantages comparing the traditional templating routes in performance/price ratio flexibility procedures, materials can be manufactured quantity scale. The prepared were used as adsorbent dispose Congo red containing wastewater, they exhibited more favorable adsorptive properties than commercial metal...
Zinc peroxide (ZnO2) hollow spheres of 100−200 nm diameter were synthesized by a simple hydrothermal method using H2O2 and ZnO powder as reagents without the assistance any surfactant. O2 bubbles in situ generated decomposition served soft template formation ZnO2 spheres. oxide (ZnO) obtained heat treatment at 180 °C for 10 h air. The products characterized XRD, FT-IR, TEM, HRTEM, FESEM. transition temperature to was determined be 229 TG-DTA. Photoluminescence (PL) properties investigated...
Poly(lactic acid) (PLA) and poly(butylene adipate-Co-terephthalate) (PBAT) show high excellent biocompatibility, which are promising materials used in bone tissue engineering field. In this research, n-HA/PLA/PBAT/MCC composites were prepared by solution blending method. Nano hydroxyapatite (n-HA) was as nucleation, microcrystalline cellulose (MCC) added to improve the degradation performance of materials. Compared with composite without n-HA, crystallinity 6% n-HA increased 62%. The...
A simple approach has been developed to synthesize hierarchically porous MnO2 with a crystalline nanorod framework using mesoporous silica SBA-15 as template, combined in situ ion-exchange and surfactant-extraction processes without calcination. XRD, nitrogen adsorption analysis, FE-SEM, TEM, XPS FT-IR techniques are used for the structural characterization. Such materials show macro–mesoporous hierarchical nanostructure containing large pores of several hundreds nanometres mesopores 3.76 nm...
<title>Abstract</title> Fullerene-based materials have traditionally served as the primary electron transport layers (ETLs) in environmentally friendly tin-based perovskite solar cells (TPSCs) due to their suitable band structures. However, they suffer from limitations such high cost, complex synthetic process, low mobilities, limited interactions with Sn-based perovskites, and challenges tuning chemical electrical structures, which hindered further improvements power conversion efficiency...
Nanocrystalline TiN powder has been synthesized by the direct nitridation of nanocrystalline TiO 2 powder. Powder XRD patterns indicated that could be obtained at 800°C for 5 h. TEM micrographs showed powders consisted uniform spherical particles with an average diameter ∼20 nm. The effect temperature and holding time on properties is discussed.
To avoid the formation of hollow particles during spray pyrolysis, a hydrolysis reaction method (SHRM) was studied. Unlike conventional pyrolysis that uses metal salt as precursor and dry air carrier gas, SHRM introduces mixture dimethyl oxalate (DMO) precursors gas water vapor gas. Spherical, solid CeO 2 characterized by SEM, BET, density analysis were produced using Ce(NO 3 ) DMO precursors. DMO, an internal precipitant, hydrolyzed oxalic acid, which precipitated with cerium ions to form...
By employment of the absorbtion Al3+ and succeeding coprecipitation on surface, nanoscale Y2O3:Eu3+ powders were covered by a layer composite oxide. Benefitting from modification coating process, luminescent intensity was improved.
Experiments have shown that planar defects play an important role in strengthening and toughening medium- high-entropy alloys (M/HEAs). Understanding the underlying defect dependent deformation mechanisms is helpful designing strong ductile M/HEAs. In this work, compressive mechanical responses of columnar-grained CrCoNi MEAs are investigated via molecular dynamics simulations, considering interspacing effect difference pre-existing nanotwins (NTs) stacking faults (SFs). It found strength...
La-modified bismuth titanate ceramics with compositions of Bi4−xLaxTi3O12 (x = 0, 0.2, 0.5, 0.75) were fabricated using powders prepared by a hydrolysis method. It was found that the partial substitution lanthanum for in Bi4Ti3O12 lattice significantly influenced crystallization behavior, IR characteristics, and sinterability powder, as well microstructure dielectric properties sintered ceramics. The formation Bi2Ti2O7 intermediate phase during powder process suppressed, bands corresponding...
The single‐phase α‐sialon ceramics with high optical transmittance have been prepared by hot pressing. maximum reached 65.2% and 52.2% in the infrared wavelength region, 58.5% 40% visible region for samples 1.0 1.5 mm thickness, respectively. material also exhibited good mechanical properties of hardness (20 GPa) better fracture toughness (5.1 MPa·m 1/2 ). Both improved were attributed to less‐grain‐boundary glassy phase homogeneous microstructure, which was obtained a proper process...