Processing of Nanometer-Scale CeO₂ Particles

Abstract

A semi-batch reactor method was developed for directly synthesizing undoped and doped nanometer-scale CeO 2 particles at room temperature. Powders exhibited a surface area of ≈170 m 2 /g. Control over the particle size, size distribution, and state of agglomeration could be achieved through variation of the mixing conditions and oxidation pathway.

Influence of the Incorporation of CeO2 Nanoparticles on the Ion Exchange Behavior of Dodecylsulfate Doped Polypyrrole Films: Ac-Electrogravimetry Investigations

“…Generally, these three steps are fast, hence, the mixing step has a large influence on the product particle size and its distribution [29]. It is thus important to define the crystalline variety as well as an accurate estimation of the size of the resulting nanoparticles.…”

Fabrication of CeO2 nanoparticles modified glassy carbon electrode and its application for electrochemical determination of UA and AA simultaneously

“…[7,8]. Reports on CeO 2 nanoparticles have been mainly focused on the synthesis of CeO 2 nanoparticles so far [9][10][11][12][13]. To the best of our knowledge, however, CeO 2 nanoparticles modified electrode is rarely reported [14].…”

Utilization of Nanoparticles Produced by Aqueous-Solution Methods – Formation of Acid Sites on CeO2-TiO2 Composite and 1-D TiO2 for Dye-Sensitized Solar Cells

“…Of particularly interest, the electronic conductivity of CeO 2 can be enhanced four orders of magnitude when its microstructure is changed from the micro-to nanocrystalline region (Chiang et al, 1996). Various aqueous solution-based methods for synthesizing crystallized CeO 2 nanoparticles (Masui et al, 2002a;Hirano et al, 2000;Li et al, 2001;Wu et al, 2002;Zhou et al, 2003;Bumajdad et al, 2004) and 1D, 2D and 3D CeO 2 nanostructures with different morphologies (Vantomme et al, 2005, Zhou et al, 2005, Kuiry et al, 2005, Ho et al, 2005Han et al, 2005;Sun et al, 2006;Zhong et al, 2007) have been investigated. Some of the properties of these materials, such as the dispersibility of the particles (Masui et al, 2002a) and their catalytic properties (Masui et al, 1997;Sun et al, 2006;Zhong et al, 2007) have also been studied.…”