Prussian blue analogues (PBAs) catalysts based on structural optimization and heteroatom doping can be effectively used in the development and application of oxygen evolution reaction (OER) due to its high efficiency, stability, and low cost. Herein, we constructed for the first time that a Prussian blue analogue, P/Ni co-doped hierarchical Ag3[Co(CN)6] hollow microcuboids (P/Ni-AgCoPBA), can be a highly functional catalyst for OER. This unique (P/Ni-AgCoPBA) structure was achieved by self-template strategy and subsequent phosphorization treatment processes. Benefitting from the synergistic advantages of the unique structural features and P/Ni co-doping, P/Ni-AgCoPBAs exhibit significantly enhanced electrochemical activity towards OER. As expected, P/Ni-AgCoPBAs show a low overpotential (0.245 V) at a current density of 10 mA cm-2. Moreover, it can work smoothly at the current density of 10 mA cm-2 for 24 h in alkaline electrolyte. We believe this work provide possibility for the development of series of PBAs-based materials and the exploration of novel and efficient electrocatalysts for OER.

Construction of hierarchical P/Ni co-doped Ag3[Co(CN)6] Hollow microcuboids for oxygen evolution reaction

ACS Spring Meeting 2021

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