Study on dispersion behavior of submicron cerium oxide particles in concentrated suspensions by ultrasonic attenuation technique

2022 ◽  
pp. 1-11
Author(s):  
Zixin Luo ◽  
Qilong Wei ◽  
Qiang Yang ◽  
Wei Gao
Keyword(s):  
Cerium Oxide ◽  
Ultrasonic Attenuation ◽  
Concentrated Suspensions ◽  
Dispersion Behavior ◽  
Oxide Particles

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

Electrokinetic Research on the Dispersion Behavior of Nano-Ceria Particles in Concentrated Suspensions

2015 ◽  
Vol 645-646 ◽  
pp. 394-399
Author(s):  
Wei Gao ◽  
Qi Long Wei ◽  
Ling Ding ◽  
Xiao Yuan Li ◽  
Chao Wang ◽  
...  
Keyword(s):  
Zeta Potential ◽  
Rheological Properties ◽  
Concentrated Suspensions ◽  
Tem Analysis ◽  
Concentrated Suspension ◽  
Original Solution ◽  
Multi Scale ◽  
Scale Method ◽  
Dispersion Behavior ◽  
Significant Difference

A multi-scale method was developed, which utilized intrinsic relationships among zeta potential of particles, rheological properties of suspensions and particle size distribution (PSD), to analyze dispersion behavior of nanoparticles in concentrated suspensions. It was found that PSD of a kind of nanoceria particles by dynamic light scattering (DLS) method in solution A with concentration 5 wt% accorded well with that by direct TEM analysis, which meant the particles had been dispersed well. However, there had a significant difference when the concentration was increased to 20 wt%. When particles concentration increased from 5 wt% to 20 wt%, zeta potential in solution A changed from-150 mV to-100 mV, while zeta potential in solution B changed from-35mV to-45 mV. Variations of zeta potential of particles accorded well with rheological properties of suspensions too, from phenomenological models. When the suspensions composed by solution A and the nanoparticles with concentration about 20 wt% was diluted with its original solution to 5 wt%, the PSD of nanoceria could be measured indirectly, which accorded well with both that of a suspension prepared directly with near concentration and that from TEM images. Then a method to measure PSD of nanoparticles in concentrated suspension was brought forward.

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.

Sign in / Sign up

Export Citation Format

Share Document