Issue 21, 2014

Numerical calculations of space charge layer effects in nanocrystalline ceria. Part II: detailed analysis of the space charge layer properties

Abstract

The numerical approach presented in Part I is used to investigate in detail some important characteristics of space charge layer (SCL) concentration profiles (steepness, extent, charge contributions and total charge), which determine the resulting SCL effects on the ionic and electronic transport. Here, as a case study the conductivity changes in nanocrystalline ceria are discussed over a broad range of dopant concentration (acceptor and donor-doped) as well as space charge potential values. In addition, the effects of a mobile dopant on the SCL charge carrier profiles are addressed. Finally, using the numerical approach the possibilities of adjusting (under realistic conditions) the SCL effects to improve the conduction properties of nanocrystalline CeO2 are discussed.

Graphical abstract: Numerical calculations of space charge layer effects in nanocrystalline ceria. Part II: detailed analysis of the space charge layer properties

Article information

Article type
Paper
Submitted
31 oct. 2013
Accepted
28 feb. 2014
First published
28 feb. 2014

Phys. Chem. Chem. Phys., 2014,16, 10175-10186

Author version available

Numerical calculations of space charge layer effects in nanocrystalline ceria. Part II: detailed analysis of the space charge layer properties

M. C. Göbel, G. Gregori and J. Maier, Phys. Chem. Chem. Phys., 2014, 16, 10175 DOI: 10.1039/C3CP54616K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements