One-dimensional rod-like M-Nb2O5 and preparation method thereof

An m-nb2o5, rod-shaped technology, applied to the field of one-dimensional rod-shaped M-Nb2O5 and its preparation, can solve the problems of poor repeatability of the morphology and structure, and achieve the effects of uniform morphology and simple process

Inactive Publication Date: 2020-05-19
WUHU INST OF TECH
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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to propose a one-dimensional rod M-Nb 2 o 5 and its preparation method, the specific one-dimensional rod-shaped M-Nb is prepared by the molten salt method combined with the ion exchange method 2 o 5 Microcrystalline powder, has overcome the Nb in the prior art 2 o 5 The problem of poor repeatability of topography

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  • One-dimensional rod-like M-Nb2O5 and preparation method thereof
  • One-dimensional rod-like M-Nb2O5 and preparation method thereof
  • One-dimensional rod-like M-Nb2O5 and preparation method thereof

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[0029] For the following, through the description of the embodiments, the specific implementation of the present invention, such as the manufacturing process involved, the operation and use method, etc., will be further described in detail, so as to help those skilled in the art to have a more complete conception of the invention and the technical solution of the present invention. , accurate and in-depth understanding.

[0030] In order to solve the preparation of Nb in the prior art 2 o 5 The method is more complicated, and the steps are cumbersome, resulting in the prepared Nb 2 o 5 The repeatability of the morphology structure is poor, and the one-dimensional rod-like M-Nb provided by the present invention 2 o 5 The preparation method comprises the steps of: preparing one-dimensional KNb by molten salt method 3 o 8 , and then prepared one-dimensional rod-like H by ion exchange method 3 ONb3 o 8 , and finally decomposes H by heating 3 ONb 3 o 8 One-dimensional ro...

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Abstract

The invention discloses a one-dimensional rod-like M-Nb2O5 and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing one-dimensional KNb3O8 by a moltensalt method, then carrying out ion exchange on the KNb3O8 and HNO3 to prepare one-dimensional rod-like H3ONb3O8, and finally, carrying out heating decomposition on the H3ONb3O8 to obtain one-dimensional rod-like M-Nb2O5 microcrystalline powder. The production method disclosed by the invention is simple in process. The one-dimensional rod-like M-Nb2O5 microcrystalline powder is relatively uniformin size and morphology. The invention provides a new way for preparing a large amount of one-dimensional rod-like M-Nb2O5 microcrystalline powder, wherein no toxic organic metal compound is used in the preparation process, so that no toxic additional product is generated, and the requirement for green development is met.

Description

technical field [0001] The present invention relates to Nb 2 o 5 In the field of material technology, especially a one-dimensional rod-shaped M-Nb 2 o 5 and its preparation method. Background technique [0002] Nb 2 o 5 It is a wide-bandgap semiconductor material with rich phases and stable properties. It is widely used in ceramic capacitors, piezoelectric ceramics, new heat-sensitive materials, dielectric materials, magnetic materials, and optical materials. Nb 2 o 5 There are various phases at room temperature, including hexagonal-like crystal system (H-Nb 2 o 5 ), orthorhombic (O-Nb 2 o 5 ) and monoclinic (M-Nb 2 o 5 ), among which, the most thermodynamically stable form is the monoclinic system (M-Nb 2 o 5 ). It was found that the metal oxide Nb 2 o 5 The morphology and structure of the material have a great influence on the electrochemical performance of the material, and the electrochemical performance can be greatly improved by designing and synthesi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G33/00
CPCC01G33/00C01P2002/30C01P2002/72C01P2004/03C01P2004/10C01P2004/62C01P2004/61
Inventor 吕丹亚吴康靳维维叶舟周成威
Owner WUHU INST OF TECH
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