TiO2 nanoshapes including truncated rhombi, spheres and rods were used to support vanadia.
The structure of surface vanadia was found similar on the three TiO2 nanoshapes.
The VOx/TiO2-nanoshapes were tested for oxidative dehydrogenation (ODH) of isobutane.
The TiO2 shape does not show evident effect on the catalytic performance of vanadia in isobutane ODH.
The insignificant support shape effect in isobutane ODH over VOx/TiO2 was tentatively explained.