Ultrathin metallic nickel nanosheet, manufacturing method thereof and application of nanosheets as electrode materials

Abstract

The invention discloses an ultrathin metallic nickel nanosheet. The size of the ultrathin metallic nickel nanosheet is that the thickness ranges from 2 nanometers to 5 nanometers, the length ranges from 100 nanometers to 300 nanometers, and the width ranges from 50 nanometers to 300 nanometers. The invention further discloses an electrode material with the surface provided with an ultrathin metallic nickel nanosheet array. The electrode material comprises a porous conductive substrate and the ultrathin metallic nickel nanosheet array which grows on the substrate and is perpendicular to the porous conductive substrate. The invention further discloses an electrode material with the surface provided with a metallic nickel nanosheet assembling body. The three materials mentioned above can be manufactured through two steps of a hydrothermal synthesis method. The materials are large in specific surface area, high in stability, excellent in electro-catalytic property and capable of being used as an anode material of a hydrazine hydrate oxygenated fuel battery and a cathode material of electrolyzed elutriation hydrogen.

Description

technical field [0001] The invention belongs to the technical field of inorganic advanced nanometer materials Background technique [0002] Due to the small size effect and special surface electronic structure, metal nanomaterials have excellent optical, electrical, catalytic and other properties, so they have a wide range of applications. Compared with traditional metal nanomaterials, two-dimensional ultrathin nanosheet metal materials have excellent thermal conductivity, large specific surface area, high electron mobility and electrical conductivity, etc., so they are widely used in the fields of physics, chemistry and materials science. It has extremely high application value [Nat.Commun.2014,5,3093]. However, metal atoms tend to form a three-dimensional close-packed structure, making the liquid-phase synthesis of ultrathin nanosheets with a large number of unsaturated coordination atoms a great challenge. Existing synthetic methods can only prepare noble metal nanoshee...

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Problems solved by technology

However, metal atoms tend to form a three-dimensional close-packed structure, which makes the liquid-phase synthesis of ultrathin nanosheet structures with a large number of unsaturated coordination atoms a great challenge.

Existing synthetic methods can only prepare noble metal nanosheets under extremely harsh conditions, and the preparation of transitional non-noble metal nanosheets with a thickness of only a few atomic layers has never been reported.

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