Electron Energy Loss Spectroscopy of CeO2-x Nanoparticles

Published

January 7, 2003

Author(s)

W Lijun, H J. Wiesmann, A R. Moodenbaugh, Daniel A. Fischer, Y Zhu, M Suenaga

Abstract

ria has been widely studied due to its applications, such as a catalyst in vehicle emissions system and an electrolyte material in solid oxide fuel cells. Recently, it has been reported that CeO2-x nanoparticles exhibit lattice expansion and valence reduction of Ce ions with decreasing particle size [1]. In this study, we use electron energy loss spectroscopy (EELS) to study the valence of Ce ions in CeO2-x nanoparticles. The advantage of using EELS in a high resolution transmission electron microscrope (TEM) is that the size and crystal structure of the individual particle is precisely determined. Other macro techniques require a substantial quantity of material with avoidable variations in size.

Proceedings Title

Proceedings of VII Inter-American Congress on Electron Microscopy

Volume

9

Issue

Suppl 2

Conference Dates

August 3-7, 2003

Conference Location

Undefined

Conference Title

Microscopy and Microanalysis Conference

Pub Type

Conferences

Keywords

Ce3+, Ce4+, CeO2-x, electron energy loss spectroscopy, nanoparticles

Citation

Lijun, W. , Wiesmann, H. , Moodenbaugh, A. , Fischer, D. , Zhu, Y. and Suenaga, M. (2003), Electron Energy Loss Spectroscopy of CeO₂-x Nanoparticles, Proceedings of VII Inter-American Congress on Electron Microscopy, Undefined (Accessed December 26, 2024)