Professor Sankar has been involved in designing catalytic reaction based on the structure determined from various characterisation techniques. Some of the recent examples include (a) the development of iron containing nanoporous aluminophosphate catalysts for the selective oxidation of benzene to phenol in presence of nitrous oxide and (b) supported nano gold clusters for the selective oxidation of hydrocarbon. In addition to the above, he has been involved in developing in situ methods for following the crystallisation process of (a) nanoporouos materials, (b) multi-component mixed metal oxide catalysts and (c) nano materials. The majority of the characterisation is carried out using Synchrotron Radiation techniques.