Improved catalytic activity on transitioning from inverse to normal spinel in Zn2−xGa2xSn1−xO4: a robust bifunctional OER and HER electrocatalyst

ZnGa 2 O 4 acts as a bifunctional catalyst for both the OER and HER with a faradaic efficiency of 92 and 95% respectively. Fuel cell study also suggests higher stability of the electrodes for the overall water splitting up to 24 h.