Preparation method and application of a transition metal-doped nano-α-cobalt hydroxide material

Abstract

The invention discloses a preparation method and application of a transition metal-doped nano-α-cobalt hydroxide material. The preparation method: disperse cobalt salt and transition metal salt in a mixed solution of water and alcohol, and add ammonia and amine mixed solution , quickly generate transition metal-doped nano-cobalt hydroxide materials at room temperature, directly add perfluorosulfonic acid polymers to the system, load the prepared solution on nickel foam, and obtain electrode materials after drying. It can be applied to catalytic electrolysis of water. The present invention provides a simple and low-cost method for synthesizing transition metal-doped nano α-cobalt hydroxide material, which has high-efficiency activity for catalytic water splitting.

Description

technical field [0001] The invention relates to high-efficiency electrocatalytic water splitting technology in the field of electrochemistry, in particular to a transition metal-doped nano-α-Co(OH) 2 The preparation method of the material and its application in catalytic water splitting. Background technique [0002] Since modern times, due to the continuous development of industry, the energy crisis and environmental pollution have become more and more serious, so it is extremely urgent to find renewable clean energy. Hydrogen production by electrocatalytic water splitting has important applications in energy conversion and storage. However, it is still a major challenge to achieve efficient water splitting. Currently, electrocatalytic water splitting for hydrogen production requires the use of precious and rare metals such as platinum, ruthenium, erbium, and palladium. Such compounds are catalysts, and the cost of catalysts is high, so it is difficult to apply them on a l...

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Problems solved by technology

Hydrogen production by electrocatalytic water splitting has important applications in energy conversion and storage. However, it is still a major challenge to achieve efficient water splitting. Currently, electrocatalytic water splitting for hydrogen production requires the use of precious and rare metals such as platinum, ruthenium, erbium, and palladium. Such compounds are catalysts, and the cost of catalysts is high, so it is difficult to apply them on a large scale. In recent years, transition metal nanomaterials have been proved to be better alternative materials ( Science ,2016, 352 , 6283), but the existing methods have the disadvantages of complex preparation methods and high cost

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