Citation: Yan Gao, Hu Chen, Lu Ye, Zhongkai Lu, Yanan Yao, Yu Wei, Xuyang Chen. Highly effective electrochemical water oxidation by copper oxide film generated in situ from Cu(II) tricine complex[J]. Chinese Journal of Catalysis, ;2018, 39(3): 479-486. doi: 10.1016/S1872-2067(17)62892-4 shu

Highly effective electrochemical water oxidation by copper oxide film generated in situ from Cu(II) tricine complex

State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology(DUT), Dalian 116024, Liaoning, China

Received Date: 28 October 2017
Revised Date: 20 November 2017

Fund Project: This work was supported by the National Basic Research Program of China (973 Program, 2014CB239402), the National Natural Science Foundation of China (21573033), and the Basic Research Project of Key Laboratory of Liaoning (LZ2015015).

Developing highly efficient and stable water oxidation catalysts based on abundant metallic elements is a challenge that must be met to fulfill the promise of water splitting for clean energy production. In this work, we developed an oxygen evolution reaction catalyst consisting of a nanostructured film electrodeposited from a phosphate buffer solution (0.2 mol/L, pH=12.0) containing Cu-tricine complex. A Tafel plot showed that the required overpotential for a current density of 1.0 mA/cm² was only 395 mV and the Tafel slope was 46.7 mV/decade. In addition, the Cu-tricine film maintained a stable current density of 7.5 mA/cm² for the oxygen evolution reaction in phosphate buffer solution for 10 h, and a Faradaic efficiency of 99% was obtained.
- Water oxidation,
- Oxygen evolution reaction,
- Electrodeposition,
- Copper oxide film,
- Electrocatalyst
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