"Simultaneous Activation of Different Coordination Sites in Single-Phas" by Chongyan Hao, Xiaoning Li et al.
ABMo3O8 is an emerging oxygen evolution reaction (OER) electrocatalyst, exhibiting dual coordination sites for transition metals with good conductivity. However, it is unclear which sites are active for the OER and how to activate them both. Herein, we demonstrated experimentally that only tetrahedral (Td) Co sites are highly active in Co2Mo3O8, and octahedral (Oh) sites are activated by introducing Fe. Various synchrotron X-ray based spectroscopies confirmed the allocation of Co2+ at Td and Fe2+ at Oh sites. The dual activation of different sites improved the OER efficiency with overpotential...
Source: uow.edu.au
