Influence of the backbone of N₅-pentadentate ligands on the catalytic performance of Ni(ii) complexes for electrochemical water oxidation in neutral aqueous solutions

Shen, Junyu; Wang, Mei; He, Tianhao; Jiang, Jian; Hu, Maowei

Influence of the backbone of N₅-pentadentate ligands on the catalytic performance of Ni(ii) complexes for electrochemical water oxidation in neutral aqueous solutions

2018

Shen, Junyu | Wang, Mei | He, Tianhao | Jiang, Jian | Hu, Maowei

Two N₅-chelated nickel complexes displayed decent catalytic activity and good stability for electrochemical water oxidation in phosphate buffer solutions at pH 7, with observed rate constants of 3.06 and 4.62 s⁻¹, which are higher than those reported so far for molecular nickel catalysts in neutral solutions. The results revealed that the rigid backbone of N₅-chelating ligands has a positive influence on the activity of the nickel catalysts.

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