Structural refinement of the high-T c superconductor TlBa2Ca2Cu3O9

crystalline V205, as indicated schematically in Fig. 1. It is well known that titania exhibits a strong support interaction with vanadia, whereas this interaction is weak on silica. Thus mixed oxide carriers containing titania and silica were used to fine-tune the support influence. By this procedure the ease of reduction of the vanadia can be changed in a… (More)