Structural study of Li2O–V2O5 glasses by neutron and X-ray diffraction

Neutron and X-ray diffraction measurements were made for xLi 2 O . (100 - x)V 2 O 5 glasses (x = 0, 10, 20, 30 and 40) prepared by a single roller melt-spinning technique. By fitting the peaks in the radial distribution function, the coordination number of O atoms around V atoms, N V O , is estimated to be 4.33. A change of N V O by the addition of Li 2 O is not observed in the Li 2 O-V 2 O 5 glasses. It is confirmed that the network structure is made of corner-shared polyhedral units. It is also suggested that non-bridging oxygens increase by the addition of Li 2 O.