	US 11,918,981 B2
	Perovskite metal oxide catalyst, in which metal ion is substituted, for reducing carbon deposition, preparation method therefor, and methane reforming reaction method using same
Chang Hyun Ko, Daejeon (KR); Ji Yoon Jeon, Hamyang-gun (KR); Jeong Woo Yun, Gwangju (KR); and Eun Gyong Park, Gwangju (KR)
Assigned to INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, Gwangju (KR)
Appl. No. 16/648,190
Filed by INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY, Gwangju (KR)
PCT Filed Nov. 6, 2017, PCT No. PCT/KR2017/012452 § 371(c)(1), (2) Date Mar. 17, 2020, PCT Pub. No. WO2019/054557, PCT Pub. Date Mar. 21, 2019.
Claims priority of application No. 10-2017-0119442 (KR), filed on Sep. 18, 2017.
Prior Publication US 2020/0269217 A1, Aug. 27, 2020
Int. Cl. B01J 23/78 (2006.01); B01J 23/00 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); C01B 3/40 (2006.01)

CPC B01J 23/78 (2013.01) [B01J 23/002 (2013.01); B01J 37/04 (2013.01); B01J 37/088 (2013.01); C01B 3/40 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0238 (2013.01); C01B 2203/0261 (2013.01); C01B 2203/1058 (2013.01); C01B 2203/1241 (2013.01)]

8 Claims

1. A multicomponent metal oxide catalyst,

wherein,

the multicomponent metal oxide catalyst has a perovskite structure,

the multicomponent metal oxide catalyst is MgTiO₃, CaTiO₃, BaTiO₃, or SrTiO₃, wherein the Ti site of the MgTiO₃, CaTiO₃, BaTiO₃, or SrTiO₃is partially substituted with an ionic form of Ni,

the multicomponent metal oxide catalyst has no nickel oxide (NiO), and

the multicomponent metal oxide catalyst is represented by the following Formula (1):

MTi_1-xNi_xO_3-δ Formula (1)

wherein x is 0<x<0.03, δ is 0<δ<0.10, and M is Sr, Mg, Ca, or Ba,

wherein the ionic form of Ni has a coordination number lower than six and an oxidation number of +2, and δ is determined to maintain neutrality of the multicomponent metal oxide catalyst.