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

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

doi:10.1039/C8CC04302G

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

Junyu Shen,^a Mei Wang,

*^a Tianhao He,

^a Jian Jiang^a and Maowei Hu^a

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* Corresponding authors

^a State Key Laboratory of Fine Chemicals, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China
E-mail: symbueno@dlut.edu.cn

Abstract

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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Article information

DOI: https://doi.org/10.1039/C8CC04302G
Article type: Communication
Submitted: 30 May 2018
Accepted: 14 Jul 2018
First published: 16 Jul 2018

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Chem. Commun., 2018,54, 9019-9022

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

J. Shen, M. Wang, T. He, J. Jiang and M. Hu, Chem. Commun., 2018, 54, 9019 DOI: 10.1039/C8CC04302G

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