Title:
METHOD FOR PREPARING BORON NITRIDE NANOTUBE BY MEANS OF DOUBLE-TRANSITION METAL OXIDE CATALYSIS
Document Type and Number:
WIPO Patent Application WO/2023/019664
Kind Code:
A1
Abstract:
A method for preparing a boron nitride nanotube by means of double-transition metal oxide catalysis, relating to the field of inorganic nanomaterials. The method comprises the following steps: 1) sequentially adding boron powder, two transition metal nitrates and a precipitant into deionized water, uniformly stirring, performing a hydrothermal reaction, filtering, performing vacuum drying, and then performing heat treatment for 1-3 h at 280-300°C in an air atmosphere to obtain a double-transition metal oxide-boron precursor; and 2) placing the obtained double-transition metal oxide-boron precursor in a chemical vapor deposition system, heating to a certain temperature in an ammonia atmosphere for a heat treatment reaction, and then naturally cooling to room temperature to obtain a high-quality boron nitride nanotube. According to the method, the double-transition metal oxide is used as a catalyst, the obtained boron nitride nanotube is high in purity, does not contain impurities such as boron nitride particles, and is large in yield; the preparation method is simple, has good repeatability, and the batch and stable preparation of boron nitride nanotubes can be realized.
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Inventors:
WANG HENG (CN)
LI ZHECHENG (CN)
YANG XIAOHAN (CN)
ZENG YI (CN)
LIU KAI (CN)
XU MAN (CN)
LI ZHECHENG (CN)
YANG XIAOHAN (CN)
ZENG YI (CN)
LIU KAI (CN)
XU MAN (CN)
Application Number:
PCT/CN2021/117942
Publication Date:
February 23, 2023
Filing Date:
September 13, 2021
Export Citation:
Assignee:
WUHAN INST TECHNOLOGY (CN)
International Classes:
C01B21/064; B01J23/75; B01J23/755; B82Y40/00
Foreign References:
| CN113213438A | 2021-08-06 | |||
| CN107673318A | 2018-02-09 | |||
| CN108483517A | 2018-09-04 | |||
| CN106698527A | 2017-05-24 | |||
| CN107522180A | 2017-12-29 | |||
| JP2013505194A | 2013-02-14 | |||
| JP2006240942A | 2006-09-14 |
Attorney, Agent or Firm:
WUHAN ZHICHANSHIDAI INTELLECTUAL MPROPERTY CO., LTD (CN)
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