US 12,473,627 B2
Surface-functionalized metal foil and method of preparing the same
Sun Ho Jeong, Yongin-si (KR); Ye Jin Jo, Anyang-si (KR); Sang Hyeok Bae, Yongin-si (KR); and Yeong Je Lee, Jeonju-si (KR)
Assigned to UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si (KR)
Filed by UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si (KR)
Filed on Jun. 26, 2023, as Appl. No. 18/341,364.
Claims priority of application No. 10-2022-0078773 (KR), filed on Jun. 28, 2022.
Prior Publication US 2023/0416900 A1, Dec. 28, 2023
Int. Cl. C23C 10/20 (2006.01); B32B 15/01 (2006.01)
CPC C23C 10/20 (2013.01) [B32B 15/01 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of preparing a surface-functionalized metal foil, the method comprising:
preparing a surface-modified metal substrate using a first surface modifier;
preparing surface-modified metal nanoparticles using a second surface modifier;
immersing the surface-modified metal substrate in a dispersion containing the surface-modified metal nanoparticles to adsorb the surface-modified metal nanoparticles as a single layer on the surface-modified metal substrate; and
drying the surface-modified metal substrate on which the surface-modified metal nanoparticles are adsorbed and performing light firing of the surface-modified metal nanoparticles to form a surface functional layer, the light firing including:
forming an alloy containing at least one element of the surface-modified metal substrate in the surface-modified metal nanoparticles,
forming an alloy containing at least one element of the surface-modified metal nanoparticles in the surface-modified metal substrate, and
the at least one element of the surface-modified metal nanoparticles being diffused into the surface-modified metal substrate as a whole and forming a metal alloy containing the at least one element of the surface-modified metal nanoparticles,
wherein the second surface modifier is a polymer having one or more selected from the group consisting of a carboxyl group, an amine group, an imine group, a hydroxyl group, and a carbonyl group.