![]() ![]() ![]() Exploiting the control possibilities provided by the synthesis method here described and employing the uncovered property-performance correlations, the electrocatalyst is optimized. The structural and chemical properties of the obtained set of materials are thoroughly analysed and correlated with their electrocatalytic performance to study the effect of surface anionic groups, phase transition, metal leaching and defect generation on OER activity. We introduce a range of different anionic groups (Cl-, CH3COO-, NO3-, SO42-) on the surface of an amorphous ZnCoxNiyOz catalyst by a facile proton etching and ion exchange method from a ZIF-8 self-sacrificial template. Herein, we analyze the role of the oxidized anions, which is particularly neglected in most previous works. While this reconstruction strongly influences their performance, it is frequently overlooked. 10.1016/j.apcatb.2022.121988.Īt the initial stage of the oxygen evolution reaction (OER) most electrocatalysts undergo structural and chemical surface reconstruction. Wang X., Han X., Du R., Liang Z., Zuo Y., Guardia P., Li J., Llorca J., Arbiol J., Zheng R., Cabot A. ![]() Unveiling the role of counter-anions in amorphous transition metal-based oxygen evolution electrocatalysts ![]()
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