The electrochemical catalysts for Oxygen evolution reaction (OER) with abundant reserves, high catalytic activity, and robust stability are highly crucial for efficient electrocatalytic water splitting. Herein, we designed and synthesized the non-noble metal coordinated porphyrin-based hypercrosslinked polymers (FX-M-TPP) characterized by SEM, TEM, XPS, etc. Their performance as electrocatalysts for OER was evaluated in 1 M KOH, among which FX-FeCo-TPP exhibited a minimum overpotential of 251 mV at 10 mA cm-2, with a Tafel slope of 35.2 mV dec-1. Meanwhile, those material performed excellently stability. By studying the intermediates in the OER process, it was revealed that the true catalytic active substances are metal hydroxides evolved from FX-FeCo-TPP. The results of this work provide new method for designing high-performance OER catalytic materials based on organic compounds.

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