Title:
FEMTOSECOND LASER BASED HIGH CATALYTIC ACTIVITY GOLD NANOROD PREPARATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/052105
Kind Code:
A1
Abstract:
The present invention relates to the technical field of femtosecond laser applications, and relates to a femtosecond laser based high catalytic activity gold nanorod preparation method and system. The method comprises: first, synthesizing a gold nanorod solution by means of a seeded solution growth method; centrifuging the gold nanorod solution and dropwise adding the solution onto a silicon substrate; and then, introducing femtosecond laser to the silicon substrate, and controlling the wavelength and irradiation time of pulse incident onto the silicon substrate to implement selective ablation of a gold nanorod. The gold nanorod having a high-index crystal face is prepared, and thus the catalytic activity of the gold nanorod is improved. Compared with existing chemical methods or the like, according to the method of the present invention, a high catalytic activity gold nanorod is prepared by irradiating the gold nanorod using femtosecond laser pulse and reasonably designing laser polarization and the wavelength, so that the preparation process is simple. According to the femtosecond laser based high catalytic activity gold nanorod preparation system of the present invention, the polarization direction and wavelength of femtosecond laser can be arbitrarily adjusted, and the operation is convenient.
Inventors:
YAN JIANFENG (CN)
ZHU DEZHI (CN)
ZHAO YUE (CN)
ZHU DEZHI (CN)
ZHAO YUE (CN)
Application Number:
PCT/CN2020/110434
Publication Date:
March 25, 2021
Filing Date:
August 21, 2020
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
B22F1/054; B22F9/24; B23K26/064; B82Y30/00; B82Y40/00
Foreign References:
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| CN104907578A | 2015-09-16 | |||
| CN103658993A | 2014-03-26 | |||
| CN101343778A | 2009-01-14 | |||
| CN102962469A | 2013-03-13 | |||
| CN103658993A | 2014-03-26 | |||
| CN108213718A | 2018-06-29 | |||
| CN108568594A | 2018-09-25 | |||
| CN109868462A | 2019-06-11 | |||
| JP2007237221A | 2007-09-20 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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