Fabrication of Monodispersed 5-nm BaTiO3Nanocrystals with Narrow Size Distribution via One-Step Solvothermal Route

2011 ◽  
Vol 94 (10) ◽  
pp. 3220-3222 ◽  
Author(s):  
Hui Zhang ◽  
Xiaohui Wang ◽  
Zhibin Tian ◽  
Caifu Zhong ◽  
Yichi Zhang ◽  
...  
Keyword(s):  
Size Distribution ◽  
Narrow Size Distribution ◽  
Solvothermal Route ◽  
One Step

Preparation of NiFe2O4 powder by spray pyrolysis of nitrate aerosols in NH3

1996 ◽  
Vol 11 (3) ◽  
pp. 663-670 ◽  
Author(s):  
Hsuan-Fu Yu ◽  
Ahmed M. Gadalla
Keyword(s):  
Aqueous Solution ◽  
Spray Pyrolysis ◽  
Size Distribution ◽  
Reaction Mechanisms ◽  
Hollow Spheres ◽  
Metallic Alloy ◽  
Stoichiometric Ratio ◽  
Narrow Size Distribution ◽  
Dilute Aqueous Solution ◽  
One Step

To avoid the formation of hollow spheres during spray pyrolysis, NH3 was employed to change the mechanism of forming NiFe2O4 from aerosols, containing Ni(II) and Fe(III) nitrates in the required stoichiometric ratio. Nearly spherical, solid submicron NiFe2O4 particles with narrow size distribution were produced in one step using a dilute aqueous solution at pyrolysis temperatures as low as 823 K. However, higher pyrolysis temperatures (≥1023 K) reduced the oxides to metallic alloy of Ni and Fe due to dissociation of NH3. The forming steps and possible reaction mechanisms for aerosol droplets involved in the process were discussed.

scholarly journals Design and Synthesis of Functional Silsesquioxane-Based Hybrids by Hydrolytic Condensation of Bulky Triethoxysilanes

2012 ◽  
Vol 2012 ◽  
pp. 1-17 ◽  
Author(s):  
Hideharu Mori
Keyword(s):  
Size Distribution ◽  
Water Soluble ◽  
Metal Alkoxides ◽  
Narrow Size Distribution ◽  
Stimuli Responsive ◽  
Design And Synthesis ◽  
One Step ◽  
The Subject ◽  
Characteristic Features ◽  
The One

This paper presents a short overview of recent advances in the design and synthesis of organic-inorganic hybrids using silsesquioxane-based nanoparticles having nanometer size, relatively narrow size distribution, high functionalities, and various characteristic features, mainly focusing on our recent researches related to the subject. A highlight of this paper is the water-soluble silsesquioxane-based nanoparticles, including hydroxyl-functionalized and cationic silsesquioxanes, which were synthesized via the one-step condensation of the bulky triethoxysilane precursors. The design and synthesis of R-SiO1.5/SiO2and R-SiO1.5/TiO2hybrids by hydrolytic cocondensation of a triethoxysilane precursor and metal alkoxides are briefly introduced. This paper also deals with recent results in stimuli-responsive hybrids based on the water-soluble silsesquioxane nanoparticles and fluorinated and amphiphilic silsesquioxane hybrids.

Macrostructure and microphysics of Saturn's E-ring

1984 ◽  
Vol 75 ◽  
pp. 607-613 ◽  
Author(s):  
Kevin D. Pang ◽  
Charles C. Voge ◽  
Jack W. Rhoads
Keyword(s):  
Size Distribution ◽  
Spherical Shape ◽  
Mie Scattering ◽  
Narrow Size Distribution ◽  
Electrostatic Levitation ◽  
Volcanic Origin ◽  
Micron Diameter

Abstract.All observed optical and infrared properties of Saturn's E-ring can be explained in terms of Mie scattering by a narrow size distribution of ice spheres of 2 - 2.5 micron diameter. The spherical shape of the ring particles and their narrow size distribution imply a molten (possibly volcanic) origin on Enceladus. The E-ring consists of many layers, possibly stratified by electrostatic levitation.

Note: Engineering of crosslinked poly(isothiouronium methylstyrene) microparticles of narrow size distribution for antibacterial applications

2017 ◽  
Vol 28 (5) ◽  
pp. 568-568
Author(s):  
Sarit Cohen ◽  
Inna Laitman ◽  
Tammy Lublin Tennenbaum ◽  
Michal Natan ◽  
Ehud Banin ◽  
...  
Keyword(s):  
Size Distribution ◽  
Narrow Size Distribution

Stranski-Krastanov Growth of InAs Quantum Dots with Narrow Size Distribution

2000 ◽  
Vol 39 (Part 2, No. 12A) ◽  
pp. L1245-L1248 ◽  
Author(s):  
Koichi Yamaguchi ◽  
Kunihiko Yujobo ◽  
Toshiyuki Kaizu
Keyword(s):  
Quantum Dots ◽  
Size Distribution ◽  
Narrow Size Distribution ◽  
Inas Quantum Dots
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