Effect of Crystal Structure/Electric Polarization on HER/OER
Ms. Aditi Vijay from Dr. Sonalika Vaidya's group have showcased the role of crystal structure (for a system containing same element but crystallizing in different structures) on HER/OER. She demonstrated this with two of her studies. In one, she has showcased this with three stable phases of Bi-Fe-O viz. BiFeO3 (perovskite structure), Bi2Fe4O9 (Mullite structure), and Bi25FeO40 (sillenite structure) on electrocatalytic OER. Here effect of electric polarization on the catalytic performance of the oxide was also evaluated. More details can be found in Electrochimica Acta, 2022, 407, 139887. In second, she has synthesized SrTiO3 (perovskite structure) and SrO-(SrTiO3)n (n=1 and 2; Ruddlesden-Popper based perovskite oxides) and studied their effect on photocatalytic HER. More details can be found in Material Advances, 2022, 3, 5055.