scholarly journals Iron Oxide Doped Alumina-Zirconia Nanoparticle Synthesis by Liquid Flame Spray from Metal Organic Precursors

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Juha-Pekka Nikkanen ◽  
Helmi Keskinen ◽  
Mikko Aromaa ◽  
Mikael Järn ◽  
Tomi Kanerva ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Nanoparticle Synthesis ◽  
Particle Morphology ◽  
Particulate Material ◽  
Flame Spray ◽  
Primary Particles ◽  
Metal Organic ◽  
Zirconia Nanoparticle ◽  
Phase And Chemical Composition ◽  
Liquid Flame Spray

The liquid flame spray (LFS) method was used to make iron oxide doped alumina-zirconia nanoparticles. Nanoparticles were generated using a turbulent, high-temperature (Tmax⁡∼3000 K)H2-O2flame. The precursors were aluminium-isopropoxide, zirconium-n-propoxide, and ferrocene in xylene solution. The solution was atomized into micron-sized droplets by high velocityH2flow and introduced into the flame where nanoparticles were formed. The particle morphology, size, phase, and chemical composition were determined by TEM, XRD, XPS, andN2-adsorption measurements. The collected particulate material consists of micron-sized aggregates with nanosized primary particles. In both doped and undoped samples, tetragonal phase of zirconia was detected in room temperature while alumina was found to be noncrystalline. In the doped powder, Fe was oxidized toFe2O3. The primary particle size of collected sample was approximately from 6 nm to 40 nm. Doping was observed to increase the specific surface area of the powder from 39 m2/g to 47 m2/g.

scholarly journals Liquid Flame Spray—A Hydrogen-Oxygen Flame Based Method for Nanoparticle Synthesis and Functional Nanocoatings

2017 ◽  
Vol 34 (0) ◽  
pp. 141-154 ◽  
Author(s):  
Jyrki M. Mäkelä ◽  
Janne Haapanen ◽  
Juha Harra ◽  
Paxton Juuti ◽  
Sonja Kujanpää
Keyword(s):  
Nanoparticle Synthesis ◽  
Flame Spray ◽  
Oxygen Flame ◽  
Liquid Flame Spray

scholarly journals Controlling the phase of iron oxide nanoparticles fabricated from iron(III) nitrate by liquid flame spray

2019 ◽  
Vol 1 (4) ◽  
pp. 194-205
Author(s):  
Miika Sorvali ◽  
Markus Nikka ◽  
Paxton Juuti ◽  
Mari Honkanen ◽  
Turkka Salminen ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Flame Spray ◽  
Liquid Flame Spray

Adjustable wetting of Liquid Flame Spray (LFS) TiO2-nanoparticle coated board: Batch-type versus roll-to-roll stimulation methods

2014 ◽  
Vol 29 (2) ◽  
pp. 271-279 ◽  
Author(s):  
Mikko Tuominen ◽  
Hannu Teisala ◽  
Janne Haapanen ◽  
Mikko Aromaa ◽  
Jyrki M. Mäkelä ◽  
...  
Keyword(s):  
Argon Plasma ◽  
Ultra Violet ◽  
High Volume ◽  
Point Of View ◽  
Flame Spray ◽  
Ambient Conditions ◽  
Batch Type ◽  
Roll To Roll ◽  
Long Time ◽  
Liquid Flame Spray

Abstract Superhydrophobic nanoparticle coating was created on the surface of board using liquid flame spray (LFS). The LFS coating was carried out continuously in ambient conditions without any additional hydrophobization steps. The contact angle of water (CAW) of ZrO2, Al2O3 and TiO2 coating was adjusted reversibly from >150° down to ~10−20° using different stimulation methods. From industrial point of view, the controlled surface wetting has been in focus for a long time because it defines the liquid-solid contact area, and furthermore can enhance the mechanical and chemical bonding on the interface between the liquid and the solid. The used stimulation methods included batch-type methods: artificial daylight illumination and heat treatment and roll-to-roll methods: corona, argon plasma, IR (infra red)- and UV (ultra violet)-treatments. On the contrary to batch-type methods, the adjustment and switching of wetting was done only in seconds or fraction of seconds using roll-to-roll stimulation methods. This is significant in the converting processes of board since they are usually continuous, high volume operations. In addition, the creation of microfluidic patterns on the surface of TiO2 coated board using simple photomasking and surface stimulation was demonstrated. This provides new advantages and possibilities, especially in the field of intelligent printing. Limited durability and poor repellency against low surface tension liquids are presently the main limitations of LFS coatings.

Parametric study of zirconia nanoparticle synthesis in low pressure flames

2001 ◽  
Vol 44 (8-9) ◽  
pp. 2259-2262 ◽  
Author(s):  
A Colibaba-Evulet ◽  
V Shukla ◽  
N.G Glumac ◽  
B Kear ◽  
F Cosandey
Keyword(s):  
Parametric Study ◽  
Nanoparticle Synthesis ◽  
Low Pressure ◽  
Zirconia Nanoparticle

Nanoparticle Deposition on Packaging Materials by Liquid Flame Spray

2013 ◽  
pp. 331-344 ◽  
Author(s):  
Hannu Teisala ◽  
Mikko Tuominen ◽  
Mikko Aromaa ◽  
Milena Stepien ◽  
Jyrki Mäkelä ◽  
...  
Keyword(s):  
Packaging Materials ◽  
Flame Spray ◽  
Nanoparticle Deposition ◽  
Liquid Flame Spray

scholarly journals Structural diversity in iron oxide nanoparticle assemblies as directed by particle morphology and orientation

Nanoscale ◽  
2013 ◽  
Vol 5 (9) ◽  
pp. 3969 ◽  
Author(s):  
Sabrina Disch ◽  
Erik Wetterskog ◽  
Raphaël P. Hermann ◽  
Denis Korolkov ◽  
Peter Busch ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Particle Morphology ◽  
Structural Diversity ◽  
Iron Oxide Nanoparticle ◽  
Nanoparticle Assemblies ◽  
Oxide Nanoparticle
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