Method for preparing gold nanorods having high catalytic activity by using femtosecond laser
US11110448B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2021 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | May 12, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided is a method for preparing gold nanorods having a high catalytic activity by using a femtosecond laser. The method includes: (1) preparing a gold seed solution; (2) preparing a gold nanorod solution by a seed solution growth process; (3) subjecting the gold nanorod solution to a centrifugal separation to obtain the gold nanorods, and dropping the gold nanorods on a silicon substrate; (4) building a system for preparing the gold nanorods having the high catalytic activity by using the femtosecond laser; and (5) emitting a pulse of the femtosecond laser on the silicon substrate, to allow an electric field distribution of a surface of the gold nanorod on the silicon substrate to change, to partially exfoliate atoms on the surface of the gold nanorod, thereby obtaining the gold nanorod with the high catalytic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.