MA2CoBr4: lead-free cobalt-based perovskite for electrochemical conversion of water to oxygen†
Abstract
We have synthesized a lead-free stable organic–inorganic perovskite (MA2CoBr4) by using non-hazardous solvents such as methanol and ethanol, which are eco-friendly and safe to handle in comparison to DMF, toluene, etc. Single crystals of MA2CoBr4 were grown using a simple solution technique, and their electrochemical oxygen evolution was investigated in a wide pH range.