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Preparation method of cobaltous phosphate ultra-small nanodisk, ultrathin nanosheet and ultrafine nanowire

A technology of ultra-fine nanometer and cobalt phosphate, which is applied in nanotechnology, chemical instruments and methods, phosphorus compounds, etc.

Inactive Publication Date: 2016-04-06
OCEAN UNIV OF CHINA
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Problems solved by technology

Amorphous materials have gradually become a new research hotspot because of their lack of long-range stability, isotropy, continuity and reversibility of physical and chemical properties with temperature changes, but two-dimensional ultra-thin amorphous materials are still a relatively new research field. , whether it is possible to develop a two-dimensional amorphous material with excellent properties similar to graphene has become a challenge for the scientific community

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  • Preparation method of cobaltous phosphate ultra-small nanodisk, ultrathin nanosheet and ultrafine nanowire
  • Preparation method of cobaltous phosphate ultra-small nanodisk, ultrathin nanosheet and ultrafine nanowire
  • Preparation method of cobaltous phosphate ultra-small nanodisk, ultrathin nanosheet and ultrafine nanowire

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Embodiment Construction

[0006] During operation, first weigh a certain amount of alkali metal phosphate, dissolve it in deionized water, and form a 0.01mol / L to 0.54mol / L aqueous solution. A certain amount of cobalt nitrate hexahydrate is weighed and added into an organic solution to form a 0.01-1mol / L cobalt nitrate organic solution. Then the two solutions were mixed and mixed with 0.1 o C / min to 20 o C / min speed up to 80-300 o C insulation. Controlling the holding time for 0-5 hours can obtain ultra-small cobalt phosphate nanodiscs, controlling the holding time for 5-12 hours can obtain ultra-thin cobalt phosphate nanosheets, and controlling the holding time for 12-144 hours can obtain ultra-fine cobalt phosphate nanowires. The method of collecting cobalt phosphate ultra-small nano-discs is: add acetone to the product mixed solution, transfer to a centrifuge tube for centrifugation, obtain the precipitated product, continue to wash with acetone for 3-5 times, and finally o C to 100 o C for a c...

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Abstract

The invention discloses a preparation method for preparing cobaltous phosphate ultra-small nanodisk, ultrathin nanosheet and ultrafine nanowire by a two-phase interface method. By regulating reaction time, conversion from cobaltous phosphate ultra-small nanodisk assembled to ultrathin nanosheet to ultrafine nanowire is controlled. The preparation method has a simple process, is easy to operate, is low-cost and is environmentally friendly. Raw materials are easily available. During the whole reaction process, no special equipment is required. The invention is beneficial to industrial production. By the method, an ultrafine nanowire nano-material with excellent pseudocapacitor performance is finally obtained, wherein specific capacitance of the material can reach 1174 F / g when electric current density is 2 A / g. The prepared material in the invention is an ideal supercapacitor material which has a wide commercial application prospect.

Description

technical field [0001] The invention relates to an ultra-small, ultra-thin and ultra-fine nano material, specifically a method for preparing an ultra-small nano plate of cobalt phosphate, an ultra-thin nano sheet and an ultra-fine nano wire. Background technique [0002] Research has shown that, in addition to the composition and arrangement of atoms in a material, dimensionality also plays a decisive role in determining the fundamental properties of the material. This has been highly demonstrated by the two-dimensional material graphene. As a two-dimensional material with excellent electrical and mechanical properties, graphene's excellent electrical conductivity stems from its ultra-high electron mobility and its excellent mechanical properties The energy comes from the SP formed by the regularly arranged carbon atoms in its lattice 2 hybridization. Two-dimensional nanomaterials represented by graphene have attracted great attention from the scientific community to two-d...

Claims

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Application Information

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IPC IPC(8): C01B25/37B82Y40/00
Inventor 董博华席耀宁曹立新苏革高荣杰
Owner OCEAN UNIV OF CHINA
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