A transparent electrode with water-oxidizing activity. (20th December 2018)

• Record Type: Journal Article
• Authors: Azadi, Gouhar; Bagheri, Robabeh; Bikas, Rahman; Mousazade, Younes; Cui, Junfeng; Song, Zhenlun; Kinzhybalo, Vasyl; Shen, Jian-Ren; Allakhverdiev, Suleyman I.; Najafpour, Mohammad Mahdi
• Is Part Of: International journal of hydrogen energy. Volume 43:Number 51(2018)
• Page Start: 22896
• Page End: 22904
• Publication Date: 2018-12-20
• Subjects: Water oxidation -- Hydrogen production -- Fluorine-doped tin oxide -- Catalyst; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2018.10.146
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Hydrogen production by water splitting is a promising method to store energy. Water-oxidation reaction is a bottleneck in water-splitting systems. Herein, a mononuclear nickel(II) phosphine complex with 1, 2-bis(dicyclohexylphosphino)ethane ligand, was synthesized and characterized by X-ray crystallography method. The water-oxidizing catalyst under the electrochemical condition was studied. The role of Ni compound for the water-oxidation reaction on the surface of fluorine-doped tin oxide as one of the true catalysts was investigated by the electrochemical methods and Scanning Electron Microscopy coupled with Energy Dispersive X-ray (SEM/EDX) Spectroscopy. The big ligand around the Ni ion causes a very small size of Ni-based particles on the surface of the electrode, which are the active catalysts for the water-oxidation reaction. Such small nanosized Ni-based compounds are transparent and have no effect on the transparency of the obtained fluorine-doped tin oxide. Thus, it is a promising method to synthesize a transparent fluorine-doped tin oxide with water-oxidizing activity. Highlights: Hydrogen production by water splitting is a promising method to store energy. A mononuclear nickel(II) phosphine complex was synthesized and characterized. The complex formed a Ni-based compound on the obtained fluorine-doped tin oxide. A transparent electrode with water-oxidizing activity was reported.