Ultrathin Ni-Co stratified-structure hydroxide as well as preparation method and application thereof

A layered structure and hydroxide technology, which is applied in the manufacture of cobalt oxide/cobalt hydroxide, nickel oxide/nickel hydroxide, hybrid/electric double layer capacitors, etc., can solve the problems of complicated process and harsh reaction conditions, and achieve The effect of simple process route and excellent capacitance effect
CN106865627AActive Publication Date: 2017-06-20SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Publication Date
2017-06-20

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Abstract

The invention discloses an ultrathin Ni-Co stratified-structure hydroxide as well as a preparation method and application thereof. According to the preparation method, Co(Ac)2.4H2O and Ni(Ac)2.4H2O are respectively taken as a cobalt source and a nickel source, an amphipathic segmented copolymer P123 and a glycol cosurfactant are taken as structure-directing agents, and the ultrathin Ni-Co stratified-structure hydroxide is prepared in a mixed solvent system containing ethanol and a small amount of water by virtue of a one-step hydrothermal method. The ultrathin Ni-Co stratified-structure hydroxide is prepared by virtue of the preparation method. The ultrathin Ni-Co stratified-structure hydroxide is used as an electrode material of a supercapacitor. According to the preparation method, a two-dimensional ultrathin stratified-structure material is prepared, a simple, feasible and low-cost method is provided, and meanwhile, an excellent electrode material is provided for the supercapacitor.
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Description

technical field

[0001] The invention belongs to the technical field of synthesis of novel inorganic nanometer energy storage materials, and more specifically relates to an ultrathin Ni-Co layered structure hydroxide and its preparation method and application. Background technique

[0002] Two-dimensional layered nanostructures have shown excellent properties in catalysis, photoelectrochemistry, and electrochemistry due to their large lateral dimensions (up to several microns or even tens of microns) and small thicknesses. Two-dimensional metal layered hydroxides (LDHs) are a class of ionic layered compounds, generally composed of positively charged brucite layers, containing some anions and solvent molecules that can balance positive charges between the layers, and the metal ions are located in eight In the center of the octahedron, hydroxide ions occupy the vertices of the octahedron, and these hydroxide ions are interconnected to form a two-dimensional sheet structure. Th...

Claims

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