SnO2/TiO2 mixed oxide particles synthesized in doped premixed H2/O2/Ar flames

2005 ◽  
Vol 30 (2) ◽  
pp. 2577-2584 ◽  
Author(s):  
Pascal Ifeacho ◽  
Hartmut Wiggers ◽  
Paul Roth
Keyword(s):  
Mixed Oxide ◽  
Oxide Particles

Formation of mixed oxide powders in flames: Part II. SiO2−GeO2 and Al2O3−TiO2

1992 ◽  
Vol 7 (7) ◽  
pp. 1870-1875 ◽  
Author(s):  
Cheng-Hung Hung ◽  
Philippe F. Miquel ◽  
Joseph L. Katz
Keyword(s):  
Light Scattering ◽  
Mixed Oxide ◽  
Mixed Oxides ◽  
Electrophoretic Method ◽  
X Ray ◽  
Oxide Powders ◽  
Flame Burner ◽  
Carbon Coated ◽  
Oxide Particles ◽  
Counterflow Diffusion Flame

SiO2−GeO2 and Al2O3−TiO2 mixed oxide powders were synthesized using a counterflow diffusion flame burner. SiCl4, GeCl4, Al(CH3)3, and TiCl4 were used as source materials for the formation of oxide particles in hydrogen-oxygen flames. In situ particle sizes were determined using dynamic light-scattering. Powders were collected using two different methods, a thermophoretic method (particles are collected onto carbon coated TEM grids) and an electrophoretic method (particles are collected onto stainless steel strips). Their size, morphology, and crystalline form were examined using a transmission electron microscope and an x-ray diffractometer. A photomultiplier at 90° to the argon ion laser beam was used to measure the light-scattering intensity. The formation of the mixed oxides was investigated using Si to Ge and Al to Ti ratios of 3:5 and 1:1, respectively. Heterogeneous nucleation of the SiO2 on the surface of the GeO2 was observed. In Al2O3−TiO2 mixtures, both oxide particles form at the same temperature. X-ray diffraction analysis of particles sampled at temperatures higher than 1553 K showed the presence of rutile, γ–Al2O3, and aluminum titanate. Although the particle formation process for SiO2−GeO2 is very different from that for Al2O3−TiO2, both mixed oxides result in very uniform mixtures.

Analysis of plutonium isotope ratios including 238 Pu/ 239 Pu in individual U–Pu mixed oxide particles by means of a combination of alpha spectrometry and ICP-MS

Talanta ◽  
2017 ◽  
Vol 165 ◽  
pp. 122-127 ◽  
Author(s):  
Fumitaka Esaka ◽  
Kenichiro Yasuda ◽  
Daisuke Suzuki ◽  
Yutaka Miyamoto ◽  
Masaaki Magara
Keyword(s):  
Mixed Oxide ◽  
Alpha Spectrometry ◽  
Isotope Ratios ◽  
Plutonium Isotope ◽  
Icp Ms ◽  
Oxide Particles

scholarly journals Feasibility Study of Isotope Ratio Analysis of Individual Uranium-Plutonium Mixed Oxide Particles with SIMS and ICP-MS

2011 ◽  
Vol 2 (4) ◽  
pp. 80-83 ◽  
Author(s):  
Fumitaka Esaka ◽  
Masaaki Magara ◽  
Daisuke Suzuki ◽  
Yutaka Miyamoto ◽  
Chi-Gyu Lee ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Mixed Oxide ◽  
Isotope Ratio ◽  
Ratio Analysis ◽  
Icp Ms ◽  
Isotope Ratio Analysis ◽  
Oxide Particles ◽  
Uranium Plutonium

Improved oxygen mobility in nanosized mixed-oxide particles synthesized using a simple nanocasting route

2008 ◽  
pp. 4504 ◽  
Author(s):  
Magali Bonne ◽  
Nicolas Bion ◽  
Frédéric Pailloux ◽  
Sabine Valange ◽  
Sébastien Royer ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Oxygen Mobility ◽  
Nanocasting Route ◽  
Oxide Particles

Rod-like CuMnOx transformed from mixed oxide particles by alkaline hydrothermal treatment as a novel catalyst for catalytic combustion of toluene

2016 ◽  
Vol 18 (33) ◽  
pp. 22794-22798 ◽  
Author(s):  
W. B. Li ◽  
Z. X. Liu ◽  
R. F. Liu ◽  
J. L. Chen ◽  
B. Q. Xu
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Treatment ◽  
Mixed Oxide ◽  
Catalytic Combustion ◽  
Mixed Oxides ◽  
Copper Manganese ◽  
Oxide Particles ◽  
Novel Catalyst

Rod-like copper manganese mixed oxides by alkaline hydrothermal treatment exhibit superior catalytic activity toward toluene combustion at 210 °C.

Structures of nanosized Fe–Ti mixed oxide particles produced by freezing method

2002 ◽  
Vol 12 (8) ◽  
pp. 2416-2420 ◽  
Author(s):  
Tatsuo Ishikawa ◽  
Tomoya Ueno ◽  
Akemi Yasukawa ◽  
Kazuhiko Kandori ◽  
Takenori Nakayama ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Freezing Method ◽  
Oxide Particles
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