EXAFS study of nanocrystalline CeO2 samples prepared by sol–gel and ball-milling routes

Chadwick, Alan V.; Savin, Shelley L. P.

doi:10.1016/j.jallcom.2006.10.164

Cited by 18 publications

(10 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In literature, there are several routes through which a nanocrystalline ceria can be achieved, for instance, high energy ball milling, spray deposition, magnetron sputtering, solution combustion synthesis, pulse electro-deposition, sol-gel method, hydrothermal techniques, etc. [5][6][7][8][9]. From economical point of view, modern researchers are very keen to use high energy ball milling technique to produce nanocrystalline powders owing to its simple and environmental friendly nature while the other methods are more expensive.…”

Section: Introductionmentioning

confidence: 99%

Effect of Synthesis Routes on Microstructure of Nanocrystalline Cerium Oxide Powder

Sharma¹

2013

MSA

View full text Add to dashboard Cite

The effect of different processing routes on the microstructure of nanocrystalline ceria powder has been investigated. The nanocrystalline ceria is produced by solid state high energy ball milling (HEBM) and liquid state solution combustion synthesis (SCS) method. The liquid state route consists of a high temperature combustion reaction to form ceria from an aqueous solution of cerium ammonium nitrate (CAN) as an oxidizer and citric acid (CA) plus glycine (G) as mixed fuels. The powders have been characterized using techniques of X-ray diffraction (XRD), particle size analysis, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The microstructural characterizations show that the particle size distribution of the ball milled ceria powder is much wider than that of ceria produced by the SCS. The scanning electron micrographs show that the ball milled ceria powders are compact and dense structure while SCS ceria powders are scattered and porous.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Synthesis Routes on Microstructure of Nanocrystalline Cerium Oxide Powder

Sharma¹

2013

MSA

View full text Add to dashboard Cite

show abstract

“…The second phase can be introduced at the sol-gel stage by adding the corresponding alkoxide of the inert material. This method has proved very successful for a wide range of oxides, [57][58][59][60] for example it has been shown that 8 nm nanocrystalline tin oxide 'pinned' with approximately 15 wt% SiO 2 was obtained after calcination at 1000°C compared with 56 nm in the unpinned material. [57] An additional advantage is that the pinning particles also act to retard phase transformations of the nanocrystalline oxide.…”

Section: Preparation Of Nanoionic Materialsmentioning

confidence: 99%

Metal Oxide Nanoparticles

Chadwick

Savin

2010

Low‐Dimensional Solids

Self Cite

View full text Add to dashboard Cite

Section: Preparation Of Nanoionic Materialsmentioning

confidence: 99%

Ion‐Conducting Nanocrystals: Theory, Methods, and Applications

Chadwick

Savin

2009

Solid State Electrochemistry I

Self Cite

View full text Add to dashboard Cite

The aim of this chapter is to review the current state of knowledge in ionic materials with crystallite dimensions less than 100 nm, systems which sometimes are referred to as nanoionics. The chapter will detail the preparation, characterization and the important applications of these materials, especially in sensors, solid-state batteries, and fuel cells. Particular focus will be placed on ionic transport in these materials, as this is a topic of considerable contemporary interest, and where conflicting reports exist of enhanced diffusion in nanocrystals. IntroductionNanomaterials are systems that contain particles with one dimension in the nanometer regime. The past decade has witnessed a growing intense interest from biologists, chemists, physicists, and engineers in the application of these materialsthe so-called nanotechnology, which is sometimes referred to as the next industrial revolution [1]. The reasons for such interest are the unusual properties and potential technological applications that are exhibited by these materials when compared to their bulk counterparts [2][3][4][5][6][7][8][9][10]. In this chapter, attention will be focused on rather simple ionic solids, where the interatomic attractions are predominantly coulombic forces, and the dimensions are predominantly <100 nm. Such systems have been termed nanoionics [11,12].There are three dominant reasons for the study of these particular systems:. The simplicity of the interatomic forces means that some of the generic features and problems of nanomaterials should be tractable to theoretical and/or computer modeling approaches for these particular systems. . Many relatively simple ionic compounds, such as binary halides and oxides, in their bulk form have important technological applications as electrolytes, catalysts, Solid State Electrochemistry I: Fundamentals, Materials and their Applications. Edited by Vladislav V. Kharton

show abstract

EXAFS study of nanocrystalline CeO2 samples prepared by sol–gel and ball-milling routes

Cited by 18 publications

References 16 publications

Effect of Synthesis Routes on Microstructure of Nanocrystalline Cerium Oxide Powder

Effect of Synthesis Routes on Microstructure of Nanocrystalline Cerium Oxide Powder

Metal Oxide Nanoparticles

Ion‐Conducting Nanocrystals: Theory, Methods, and Applications

Contact Info

Product

Resources

About