US 12,270,112 B2
Method of preparing single-layered MXenes, single-layered MXenes prepared thereof, thin film for shielding electromagnetic wave, and electrode
Woo Sik Kim, Suwon-si (KR); Sang Hyuk Im, Hwaseong-si (KR); Jin Soo Kim, Yongin-si (KR); and Tae Seok Seo, Suwon-si (KR)
Assigned to University-Industry Cooperation Group of Kyung Hee University, Yongin-si (KR); and Korea University Research and Business Foundation, Seoul (KR)
Filed by University-Industry Cooperation Group of Kyung Hee University, Yongin-si (KR); and Korea University Research and Business Foundation, Seoul (KR)
Filed on Sep. 29, 2022, as Appl. No. 17/956,039.
Claims priority of application No. 10-2022-0021537 (KR), filed on Feb. 18, 2022.
Prior Publication US 2023/0265566 A1, Aug. 24, 2023
Int. Cl. C23F 1/16 (2006.01); C01B 32/90 (2017.01); C23F 1/00 (2006.01); H05K 9/00 (2006.01)
CPC C23F 1/16 (2013.01) [C01B 32/90 (2017.08); C23F 1/00 (2013.01); H05K 9/0081 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of preparing single-layered MXenes, the method comprising:
exfoliating a single layer of MXenes from multi-layered MXenes with a Couette-Taylor reactor inducing a regular flow,
wherein the CT reactor comprises:
an outer cylinder and an inner cylinder having the same central axis and different radius and the inner cylinder rotates at 30 rpm or more for at least 5 minutes,
wherein a method of preparing the multi-layered MXenes comprises:
a first step of etching off an atomic layer from MAX, and
a second step of stirring a mixture in which the MAX from which the atomic layer is etched off is mixed with deionized water.