Toxicity, uptake, and accumulation of nano and bulk cerium oxide particles in Artemia salina

2017 ◽  
Vol 24 (31) ◽  
pp. 24187-24200 ◽  
Author(s):  
Einstein Mariya David Sugantharaj David ◽  
Madhav Madurantakam Royam ◽  
Suresh Kumar Rajamani Sekar ◽  
Bhuvaneshwari Manivannan ◽  
Swathy Jalaja Soman ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Artemia Salina ◽  
Oxide Particles

Synthesis of cerium oxide particles via polyelectrolyte controlled nonclassical crystallization for catalytic application

RSC Advances ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 992-995 ◽  
Author(s):  
Mei Li ◽  
Yanhong Hu ◽  
Cuicui Liu ◽  
Jinguo Huang ◽  
Zhaogang Liu ◽  
...  
Keyword(s):  
Cerium Oxide ◽  
Catalytic Application ◽  
Oxide Particles

Comparative hazard identification of nano- and micro-sized cerium oxide particles based on 28-day inhalation studies in rats

2013 ◽  
Vol 8 (6) ◽  
pp. 643-653 ◽  
Author(s):  
Ilse Gosens ◽  
Liesbeth E.A.M. Mathijssen ◽  
Bas G.H. Bokkers ◽  
Hans Muijser ◽  
Flemming R. Cassee
Keyword(s):  
Cerium Oxide ◽  
Hazard Identification ◽  
Oxide Particles

SYNTHESIS AND MORPHOLOGICAL CONTROL OF MONODISPERSED MICROSIZED CERIA PARTICLES

2010 ◽  
Vol 17 (02) ◽  
pp. 147-152 ◽  
Author(s):  
S. YIN ◽  
Y. MINAMIDATE ◽  
T. SATO
Keyword(s):  
Particle Size ◽  
Cerium Oxide ◽  
Room Temperature ◽  
Aging Treatment ◽  
Precipitation Process ◽  
Homogeneous Precipitation ◽  
Morphological Control ◽  
Oxide Particles ◽  
Cerium Carbonate ◽  
Carbonate Precursor

The morphological control of crystalline cerium oxide particles was realized by homogeneous precipitation process followed by calcination in air at 400°C. The effects of room temperature pre-aging time on the morphologies of final products were investigated. Monodispersed rod-like cerium carbonate precursor was produced at 70°C for 2 h using the solution without pre-aging treatment. In contrast, monodispersed spherical precursor and plate-like precursor were obtained under the same conditions after pre-aging the solution at 25°C for 72 and 144 h, respectively. Ceria particles with similar morphologies and particle size to those of carbonate precursor could be obtained after calcination in air at 400°C. The monodispersed spherical, rod-like, and plate-like cerium oxide particles were successfully synthesized.

scholarly journals Structural, Surface and Catalytic Properties of Nano-Sized Ceria Catalysts

2009 ◽  
Vol 27 (4) ◽  
pp. 413-422 ◽  
Author(s):  
N.M. Deraz ◽  
A. Alarifi
Keyword(s):  
Cerium Oxide ◽  
Active Sites ◽  
Catalytic Properties ◽  
Heating Temperature ◽  
Nitrogen Adsorption ◽  
Structural Surface ◽  
Oxide Particles ◽  
Ceria Catalysts ◽  
20 Nm ◽  
Xrd And Tem

Well-dispersed uniform spheres of crystalline CeO2 were prepared by calcining precursor particles obtained by heating ammonium cerium nitrate for 4 h. These spherical substrates were examined using XRD and TEM methods, and by nitrogen adsorption studies at −196 °C. Subsequently, such cerium oxide particles prepared by calcination at 400–600 °C were used as catalysts for the conversion of isopropanol at 250–450 °C, using a flow method. The results obtained showed that increasing the heating temperature of the system investigated from 400 °C to 600 °C stimulated the formation of a well-crystallized CeO2 phase having a crystallite size varying between 10 and 20 nm. Both the surface area and catalytic activity of cerium oxide were found to decrease on increasing the calcination temperature. All solids investigated behaved as dehydrogenation catalysts which were selective towards the formation of acetone. The heat treatment did not alter the mechanism of dehydrogenation of isopropanol, but changed the concentration of active sites involved in the catalyzed reaction without altering their energetic nature.

Selective Oxidation of Toluene over the Ultrafine Composite Molybdenum-Cerium Oxide Particles

1997 ◽  
Vol 26 (3) ◽  
pp. 231-232 ◽  
Author(s):  
Yining Fan ◽  
Wenxing Kuang ◽  
Yi Chen
Keyword(s):  
Cerium Oxide ◽  
Selective Oxidation ◽  
Oxide Particles
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