Title:
METHOD FOR SYNTHESIZING HIGHLY ACTIVE CATALYST
Document Type and Number:
WIPO Patent Application WO/2023/159698
Kind Code:
A1
Abstract:
Provided is a method for preparing a catalyst for carbon nanotubes. The catalyst is used for preparing carbon nanotubes by means of the decomposition of an olefin gas. By means of a two-step complexing method in a citric acid (CA) solution and a solution of ethylenediaminetetraacetic acid (EDTA) in ammonia water, and carbonization, calcination, grinding and sieving, a highly active metal oxide catalyst for synthesizing carbon nanotubes is prepared. The catalyst features ease of preparation, good stability, proper structure, and high catalytic activity, and has successfully produced high-performance carbon nanotubes in tests with a carbon nanotube yield of the 169-246 g/g per unit weight of catalyst metal element. Therefore, the present invention has good economic benefits.
Inventors:
SHEN YUDONG (CN)
WAN RENTAO (CN)
WAN RENTAO (CN)
Application Number:
PCT/CN2022/081355
Publication Date:
August 31, 2023
Filing Date:
March 17, 2022
Export Citation:
Assignee:
WUXI DONGHENGNEWENERGYTECHNOLOGYCO LTD (CN)
International Classes:
B01J21/04; C01G51/00; B01J21/10; B01J23/881; B01J23/882; B01J35/02; C01B32/162; H01M4/583; H01M10/0525
Foreign References:
| CN103721750A | 2014-04-16 | |||
| CN110586115A | 2019-12-20 | |||
| CN110801843A | 2020-02-18 | |||
| CN110339842A | 2019-10-18 | |||
| JP2017196579A | 2017-11-02 | |||
| JP2009078235A | 2009-04-16 |
Attorney, Agent or Firm:
HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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