Wydział Chemii

Younes Mousazade

Subhajit Nandy

Rahman Bikas

Pavlo Aleshkevych

Keun Hwa Chae

Miłosz Siczek

Tadeusz Lis

Suleyman I. Allakhverdiev

Mohammad Mahdi Najafpour

2022

Dalton Transactions

51

12170-12180

10.1039/d2dt01572b

Naukowa

Angielski

Artykuł

In the context of energy storage, the oxygen-evolution reaction (OER, 2H₂O → O₂ + 4H⁺ + 4e⁻) through the water-oxidation reaction is a thermodynamically uphill reaction in overall water splitting. In recent years, copper(II) coordination compounds have been extensively used for the OER. However, challenges remain in finding the mechanism of the OER in the presence of these metal coordination compounds. Herein, the electrochemical OER activity is investigated in the presence of a copper(II) coordination compound at pH ≈ 7. While the investigations on finding true catalysts for the OER are focused on the working electrode, herein, for the first time, the focus is on the decomposition of copper(II) coordination compound (CuL₃, L: 2,2′-bipyridine N,N′-dioxide) during the OER on the counter electrode toward the precipitation of copper(I) oxide and metallic Cu.

http://dx.doi.org/10.1039/d2dt01572b

https://www.rsc.org/