	US 12,435,449 B2
	Porous multi-metal oxide nanotubes and production method therefor
Ju Ahn Park, Gyeonggi-do (KR); and Sangaraju Shanmugam, Daegu (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Daegu Gyeongbuk Institute of Science and Technology, Daegu (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Daegu Gyeongbuk Institute of Science and Technology, Daegu (KR)
Filed on Jan. 11, 2024, as Appl. No. 18/410,007.
Application 18/410,007 is a division of application No. 17/341,955, filed on Jun. 8, 2021, granted, now 11,905,624.
Claims priority of application No. 10-2020-0179801 (KR), filed on Dec. 21, 2020.
Prior Publication US 2024/0141558 A1, May 2, 2024
Int. Cl. D01F 9/10 (2006.01); D01D 5/00 (2006.01); H01M 8/10 (2016.01)

CPC D01F 9/10 (2013.01) [D01D 5/003 (2013.01); D01D 5/0061 (2013.01); H01M 8/10 (2013.01); H01M 2008/1095 (2013.01)]

9 Claims

1. Porous multi-metal oxide nanotubes comprising a metal oxide compound which is represented by the following Formula and has a single-phase multivalence:

A₂B₂O₈ [Formula]

wherein A is a first non-radioactive stable isotope ion, and B is a second non-radioactive stable isotope ion,

wherein the first non-radioactive stable isotope ion comprises an ion of one selected from the group consisting of titanium (Ti), cerium (Ce), strontium (Sr), lanthanum (La), gadolinium (Gd), erbium (Er), scandium (Sc), palladium (Pd), osmium (Os), dysprosium (Dy), ytterbium (Yb), indium (In), and neodymium (Nd), and

wherein the second non-radioactive stable isotope ion comprises an ion of one selected from the group consisting of zirconium (Zr), niobium (Nb), yttrium (Y), tantalum (Ta), vanadium (V), molybdenum (Mo), silicon (Si), ruthenium (Ru), tin (Sn), tungsten (W), uranium (U), seaborgium (Sg), and tellurium (Te),

wherein the metal oxide compound comprises a mixed crystal structure of a fluorite crystal structure and a pyrochlore crystal structure.