The Open UniversitySkip to content
 

57Fe Mössbauer spectroscopy study of LaFe1-xCoxO3 ( x=0 and 0.5) formed by mechanical milling

Berry, Frank J.; Ren, Xiaolin; Gancedo, J. Ramón and Marco, José F. (2004). 57Fe Mössbauer spectroscopy study of LaFe1-xCoxO3 ( x=0 and 0.5) formed by mechanical milling. Hyperfine Interactions, 156-157(1-4) pp. 335–340.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1023/B:HYPE.0000043250.73180.00
Google Scholar: Look up in Google Scholar

Abstract

Perovskite-related phases of the type LaFe1-xCoxO3 (x = 0 and 0.5) have been synthesised by milling techniques. The materials are of smaller particle size and more susceptible to reduction in a flowing hydrogen/nitrogen gas mixture than their counterparts made by conventional solid state calcination methods. The presence of cobalt enhances the reducibility of iron in the perovskite-related structure and, in contrast to LaFeO3 where the oxide structure is at least partially retained even after treatment in the reducing atmosphere at 1150degreesC, treatment of LaFe0.5Co0.5O3 in a reducing atmosphere leads to reduction of both Fe3+ and Co3+, their segregation from the oxide matrix, and the formation of an iron-cobalt alloy.

Item Type: Journal Article
Copyright Holders: 2004 Kluwer Academic Publishers
ISSN: 1572-9540
Keywords: 57Fe Mössbuer spectroscopy; orthoferrites; mechanical milling
Academic Unit/Department: Science > Life, Health and Chemical Sciences
Other Departments > Other Departments
Item ID: 5747
Depositing User: David Shuker
Date Deposited: 09 Nov 2006
Last Modified: 24 Jul 2014 09:10
URI: http://oro.open.ac.uk/id/eprint/5747
Share this page:

Altmetrics

Scopus Citations

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk