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Spatial Well‐defined Bimetallic 2D Polymers with Single Layer Thickness for Electrocatalytic Oxygen Evolution Reaction

Von Wiley-VCH zur Verfügung gestellt

Innovative bimetallic materials provide more possibilities for further improving the performance of oxygen evolution reaction (OER) electrocatalyst. However, it is still a great challenge to rationally design bimetallic catalysts since there lacks a practical way to decouple the influencing factors on the intrinsic activity of active sites from others, thus hinders in-depth understanding of the mechanism of synergistic effect. Herein, we provide a rational design of bimetallic Ni, Co two-dimensional polymer model OER catalyst. The well-defined architecture, identical density of active sites and monolayer characteristic allow us to decouple the intrinsic activity of active sites from other factors. The results confirmed that the relative position and local coordination environment has significant effect on the synergistic effect of the bimetallic centres. The highest electrocatalytic activity with the turnover frequency value up to 26.19 s −1 was achieved at the overpotential of 500 mV.

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