A method for preparing multilayer core-shell structure transition metal oxides in one step

A multi-layer core-shell structure, transition metal technology, applied in the directions of cobalt oxide/cobalt hydroxide, nickel oxide/nickel hydroxide, etc., can solve the problems of complex steps, many impurities in the product, complex process, etc. The effect of controllable number of layers, uniform composition and simple operation
CN107098405BActive Publication Date: 2019-07-16CENT SOUTH UNIV
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2019-07-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for preparing multilayer core-shell structure transition metal oxide at one step. The method comprises the following steps: dissolving a transition metal salt with a solvent, and then adding an organic additive to obtain a precursor solution; atomizing the precursor solution with an atomizer, and feeding the precursor solution into a vertical tube furnace with carrier gas for pyrolysis to obtain the multilayer core-shell structure transition metal oxide material. By adopting the method, the synthesized transition metal oxide is uniform in components, and is controllable in appearance and shell quantity; a high-purity and high-crystallinity multilayer core-shell structure transition metal oxide can be prepared without any separate subsequent burning process. Compared with the conventional method, the method has the advantages of easiness in operation, short flow, high efficiency, high suitability and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of preparing metal oxide powder materials by a spray pyrolysis method, in particular to a method for preparing a transition metal oxide with a multilayer core-shell structure in one step. Background technique

[0002] Transition metal oxides are widely used in electrode materials, catalysts, capacitor materials and other fields. With the continuous expansion of the application range, the requirements for the performance of the material itself are also getting higher and higher. Therefore, it is necessary to strictly control the preparation stage of powder materials. How to prepare transition metal oxide materials with uniform composition, regular shape and excellent performance has become a hot spot of concern. The spray pyrolysis method is widely used in the preparation of various metal oxide powder materials due to its simple process, high production efficiency, uniform components and high purity of the prepared pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More