“…1b) of V 2 O 5 Â 0.4H 2 O/C composite confirmed the amorphous structure of V 2 O 5 , or more precisely, the existence of only-short range ordering. Namely, the reflection lines correspond to those of V 2 O 5 Â nH 2 O xerogel [24,36,37], with the exception of the line placed at 2u % 26 , which belongs to graphite.…”