US 12,325,637 B2
Max and MXene using vanadium carbide and method for manufacturing same
Ki-Min Roh, Daejeon (KR); Han-Jung Kwon, Jeonju-si (KR); Sun-Kyung Kim, Daejeon (KR); and Tae-Jun Park, Daejeon (KR)
Assigned to KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES, Daejeon (KR)
Filed by Korea Institute Of Geoscience And Mineral Resources, Daejeon (KR)
Filed on Jul. 5, 2024, as Appl. No. 18/764,503.
Claims priority of application No. 10-2023-0152100 (KR), filed on Nov. 6, 2023.
Prior Publication US 2025/0145473 A1, May 8, 2025
Int. Cl. C01B 32/914 (2017.01); B82Y 40/00 (2011.01)
CPC C01B 32/914 (2017.08) [B82Y 40/00 (2013.01); C01P 2002/72 (2013.01); C01P 2006/80 (2013.01)] 13 Claims
OG exemplary drawing
 
1. Max using vanadium carbide,
wherein the Max consists of vanadium carbide of vanadium, aluminum, and carbon,
wherein the Max is used as a raw material for MXene, which is a two-dimensional nanomaterial,
wherein the Max is at least one selected from compounds represented by the following formulae 1 to 3, and
wherein the carbon content is 8 to 14 wt %:
V2AlC  [Formula 1]
V4AlC3  [Formula 2]
V12Al3C8.  [Formula 3]
 
7. MXene using vanadium carbide,
wherein the MXene using vanadium carbide is a two-dimensional nanomaterial having a carbon content of 10.5 to 15 wt % formed by subjecting the Max using vanadium carbide of claim 1 to aluminum etching and interlayer peeling.
 
9. A method for preparing Max using vanadium carbide, comprising:
(a-1) mixing vanadium oxide and a carbon compound to form a mixed powder and refining the particle size through high-energy milling using a high-energy milling device, followed by carbonation-reduction reaction by vacuum heat-treatment, to prepare vanadium carbide; and
(a-2) adding aluminum to the vanadium carbide, followed by heat-treatment under an inert gas, to prepare Max using vanadium carbide of claim 1.
 
12. A method for preparing MXene using vanadium carbide, comprising:
(b-1) mixing vanadium oxide and a carbon compound to form a mixed powder and refining the particle size through high-energy milling using a high-energy milling device, followed by carbonation-reduction reaction by vacuum heat-treatment, to prepare vanadium carbide;
(b-2) adding aluminum to the vanadium carbide, followed by heat-treatment under an inert gas, to prepare Max using vanadium carbide; and
(b-3) subjecting the Max using vanadium carbide to aluminum etching and interlayer peeling, to prepare MXene using vanadium carbide of claim 7.