欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用多重射流氢氧燃烧反应器,以AlCl3为前驱体制备了具有不同形貌和晶型结构的Al2O3纳米颗粒,表征了其形貌、晶型结构、比表面积、粒径分布等性能,考察了火焰燃烧形式和反应区最高温度等因素对颗粒性能的影响规律.结果表明,随反应温度升高,Al2O3粒径不断长大,形貌从具有链状结构的不规则颗粒逐渐转变为分散性良好的球形颗粒;同时随反应温度升高和在高温火焰中停留时间延长,晶型由单纯γ相逐渐转变为δ和δ＊相.产品纳米Al2O3颗粒具有较强亲水性,其分散液具有较好的稳定性.探讨了高温快速反应过程中颗粒和团聚体的生长机理,最终产物的粒径和团聚体形貌取决于各主要影响条件的相互竞争.
英文摘要：
Nano-Al2O3 particles were prepared via H2/air flame synthesis in a multi-jet reactor with anhydrous AlCl3 as precursor,the morphology,structure,crystallinity,size and specific surface area of the prepared nanoparticles were investigated,and the influences of flame configuration and maximum temperature in the reaction zone on their properties characterized.The results showed that the size of particles increased with the flame temperature increasing,and their morphology changed from irregular chain-like aggregates to well dispersed spherical nanoparticles.At the same time,a simple γ-phase was gradually transformed to δ and δ＊ phases.Dispersion of nano-Al2O3 particles had strong stability.The growth mechanism of particles and aggregates at rapid high-temperature reaction was discussed.The morphology and particle size of prepared nanoparticles depended on the competition among the key influential factors.
同期刊论文项目
同项目期刊论文
Synergetic effects of nitrogen doping and Au loading on enhancing the visible-light photocatalytic a
Visible-light Photocataltic Activity of Cr-doped TiO2 Nanoparticles Synthesized by Flame Spray Pyrol
Flame sprayed V-doped TiO2 nanoparticles with enhanced photocatalytic activity under visible light i
Zn-doped TiO2 nanoparticles with high photocatalytic activity synthesized by hydrogen–oxygen diffusi
One-step preparation, characterization and visible-light photocatalytic activity of Cr-doped TiO2 wi
Interfacial Synthesis and Supercapacitive Performance of Hierarchical Sulfonated Carbon Nanotubes/Po
A green and high energy density asymmetric supercapacitor based on ultrathin MnO2 nanostructures and
Peapod-like nickel@mesoporous carbon core-shell nanowires: a novel electrode material for supercapac
Phase-segregation induced growth of core-shell alpha-Fe2O3/SnO2 heterostructures for lithium-ion bat
Anisotropic photoelectric film assembled from mesoporous silica (MS)@CuO@FeS2 composite microspheres
Preparation of azithromycin microcapsules by a layer-by-layer self-assembly approach and release beh
Gold/mesoporous silica-fiber core-shell hybrid nanostructure: a potential electron transfer mediator
In situ assembly of graphene sheets-supported SnS2 nanoplates into 3D macroporous aerogels for high-
Multifunctional MnO2 nanosheet-modified Fe3O4@SiO2/NaYF4:Yb, Er nanocomposites as novel drug carrier
Non-isothermal crystallization behaviors of PBT nucleated with elastomer-modified nano-SiO2, a comme
The production of flexible and electrically conductive polyethylene-carbon nanotube shish-kebab stru
Construction of core-shell Fe2O3@SnO2 nanohybrids for gas sensors by a simple flame-assisted spray p
Multifunctional Fe3O4@Ag/SiO2/Au Core-Shell Microspheres as a Novel SERS-Activity Label via Long-Ran
Highly compressible magnetic liquid marbles assembled from hydrophobic magnetic chain-like nanoparti
Functional mesoporous carbon nanotubes and their integration in situ with metal nanocrystals for enh
Heteroepitaxial growth of ZnO branches selectively on TiO2 nanorod tips with improved light harvesti
Planar scattering from hierarchical anatase TiO2 nanoplates with variable shells to improve light ha
Synthesis and Structural and Electrical Characteristics of Polypyrrole Nanotube/TiO2 Hybrid Composit
Synthesis and Characterization of Polypyrrole/Graphite Oxide Composite by In Situ Emulsion Polymeriz
Electrical properties and morphology of highly conductive composites based on polypropylene and hybr
Self-Cleaning Films with High Transparency Based on TiO2 Nanoparticles Synthesized via Flame Combust
Highly efficient dye-sensitized solar cells by using a mesostructured anatase TiO2 electrode with hi
Large-scale, uniform, single-crystalline Cd(OH)(2) hexagonal platelets for Cd-based functional appli
In-situ fabrication of CNT/TiO2 interpenetrating network film on nickel substrate by chemical vapour
Controlled synthesis of hierarchical polyaniline nanowires/ordered bimodal mesoporous carbon nanocom
Facile and controllable fabrication of three-dimensionally quasi-ordered macroporous TiO2 for high p
Hydrothermal fabrication of Ni3S2/TiO2 nanotube composite films on Ni anode and application in photo
A Highly Efficient Catalyst toward Oxygen Reduction Reaction in Neutral Media for Microbial Fuel Cel
Preparation and characterization of photocatalytic carbon dots-sensitized electrospun titania nanost
Fabrication of polyaniline/mesoporous carbon/MnO2 ternary nanocomposites and their enhanced electroc
Multifunctional Magnetic Composite Microspheres with in Situ Growth Au Nanoparticles: A Highly Effic
Fabrication and electrochemical characterization of polyaniline nanorods modified with sulfonated ca
Morphological Evolution from SnO2 Quantum Dots to Quantum Chains inside Channels of Mesoporous Spher
Photoelectronic properties of horseradish peroxidase-functionalized CdSe/silica mesoporous composite
Improving photoelectrochemical activity of dye sensitized solar cell by a bilayered electrode with a
The Effects of Copper and Polytetrafluoroethylene (PTFE) on Thermal Conductivity and Tribological Be
Interfacial Confined Formation of Mesoporous Spherical TiO2 Nanostructures with Improved Photoelectr
High-performance supercapacitor material based on Ni(OH)(2) nanowire-MnO2 nanoflakes core-shell nano
One-pot hydrothermal synthesis of graphene quantum dots surface-passivated by polyethylene glycol an
Hierarchical porous nanostructures assembled from ultrathin MnO2 nanoflakes with enhanced supercapac
Inhibited Transesterification of Poly(Butylene Terephthalate)/Poly(Ethylene Terephthalate)/SiO(2) Na
Hierarchical self-assembly of ultrathin nickel hydroxide nanoflakes for high-performance supercapaci
Electrocatalytic Oxidation of Glucose by the Glucose Oxidase Immobilized in Graphene-Au-Nafion Bioco
A new fabrication method of uniformly distributed TiO2/CNTs composite film by in-situ chemical vapor
Graphene quantum dots: emergent nanolights for bioimaging, sensors, catalysis and photovoltaic devic
Higher charge/discharge rates of lithium-ions across engineered TiO2 surfaces leads to enhanced batt
Ultra-thin anatase TiO2 nanosheets dominated with {001} facets: thickness-controlled synthesis, grow
Mixed Solvents Assisted Flame Spray Pyrolysis Synthesis of TiO2 Hierarchically Porous Hollow Spheres
Template-free synthesis of hollow poly(o-anisidine) microspheres and their electrorheological charac
Facile synthesis of upconversion luminescent mesoporous Y2O3:Er microspheres and metal enhancement u
Effect of Perfluoroalkylmethacrylate Ester-grafted-Linear Low-Density Polyethylene on the Tribologic
Enhanced visible light photocatalytic activity of interlayer-isolated triplex Ag@SiO2@TiO2 core-shel
Hierarchical interconnected macro-/mesoporous Co-containing N-doped carbon for efficient oxygen redu
Ultrasound-Triggered Smart Drug Release from Multifunctional Core-Shell Capsules One-Step Fabricated
In situ Au-catalyzed fabrication of branch-type SnO2 nanowires by a continuous gas-phase route for d
期刊信息
位置：