公开(公告)号：US11554362B2

公开(公告)日：2023-01-17

申请号：US17138131

申请日：2020-12-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsik Kim ,  Heon Phil Ha ,  Dong-Wook Kwon

IPC: B01J23/94 ,  B01J37/20 ,  B01J23/10 ,  B01D53/94 ,  B01J23/847

Abstract: Provided are catalysts for reduction of nitrogen oxides including an active site including lanthanum vanadate represented by at least one of Formula 1 and Formula 2 and a support carrying the active site. LaVO4 (wherein LaVO4 is polymorphous and has a tetragonal or monoclinic crystal structure)  Formula 1 LaV3O9 (wherein LaV3O9 has a monoclinic crystal structure)  Formula 2.

公开(公告)号：US11897793B2

公开(公告)日：2024-02-13

申请号：US17115468

申请日：2020-12-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsik Kim ,  Heon Phil Ha

IPC: C02F1/461 ,  C02F1/467 ,  C02F101/10 ,  C02F101/34 ,  C02F101/38

CPC classification number: C02F1/46109 ,  C02F1/4672 ,  C02F2001/46142 ,  C02F2101/10 ,  C02F2101/345 ,  C02F2101/38 ,  C02F2305/023 ,  C02F2305/026

Abstract: Provided is a catalyst for a Fenton system, and a method of preparing the same. The catalyst includes one or more species of d0-orbital-based or non-d0-orbital-based catalyst including NO3−/SO42−/H2PO4−/HPO42−/PO43− functional groups on the surface thereof. The method includes preparing a d0-orbital-based or non-d0-orbital-based transition metal oxide; and preparing a transition metal oxide catalyst comprising a NO3−, SO42−, H2PO4−, HPO42−, or PO43− functional group on the surface of the catalyst via nitrification, sulfation, or phosphorylation of the transition metal oxide.

公开(公告)号：US11724252B2

公开(公告)日：2023-08-15

申请号：US17324542

申请日：2021-05-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsik Kim ,  Heon Phil Ha

IPC: B01J37/02 ,  B01J6/00 ,  B01J21/06 ,  B01J23/34 ,  B01J35/10 ,  B01J37/00 ,  B01J37/03

CPC classification number: B01J37/0236 ,  B01J6/001 ,  B01J21/063 ,  B01J23/34 ,  B01J35/1057 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/1071 ,  B01J37/0018 ,  B01J37/035

Abstract: A metal oxide catalyst synthesized using supercritical carbon dioxide extraction is provided, wherein the metal oxide catalyst includes an active site containing at least one type of metal oxide and a support for loading the active site and the metal oxide is an oxide of a metal selected from the group consisting of transition metals (atomic number 21 to 29, 39 to 47, 72 to 79, or 104 to 108), lanthanide (atomic number 57 to 71), post-transition metals (atomic number 13, 30 to 31, 48 to 50, 80 to 84, and 112), and metalloids (atomic number 14, 32 to 33, 51 to 52, and 85) in the periodic table, and a combination thereof.