Characterization of Manganese Cobalt Oxides Using XPS
EMSL Project ID
13498
Abstract
Recently, manganese cobalt oxides are found to be promising protective materials to detain Cr migration from the metal interconncet to the cathode of a solid oxide fuel cell (SOFC). With different molar ratios of manganese to cobalt, the oxides could be cubic or tetragonal spinel structures due to different valences and positions of Co and Mn in the structures. As a result, manganese cobalt oxides with different compositions show the variety of properties in electrical conductivity, thermal expansion, and physical and chemical stability. XPS is one of the powerful tools to obtain information about the valences of an element in different environments. By considering XPS data with the information revealed from other characterization methods, one could explain the relationship between the properties and the structures of manganese cobalt oxides.
Project Details
Project type
Exploratory Research
Start Date
2005-02-28
End Date
2007-01-13
Status
Closed
Released Data Link
Team
Principal Investigator