Chemistry Letters, Vol.36, No.11, 1368-1369, 2007
In situ and ex situ monitoring of oxygen absorption in YBaCo4O7+delta
Oxygen absorption in YBaCo4O7+delta was studied by in situ XRD and by XANES spectroscopy. Unit cell of 10.875 x 10. 168 x 12.788 angstrom(3) (Pnna) was found for the oxygenated phase. XANES shows that oxygen absorption increases the number of different crystallographic sites for Co.