Patent ID: 11885249
Assignee: LG HAUSYS, LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC F  B  Y | IPC B  F

Claim 0:
1. A catalyst for purifying exhaust gas, the catalyst comprising:
a noble metal;
alumina support particles; and
ZrO2 semiconductor particles deposited on a surface of each of the alumina support particles,
wherein the catalyst comprises
40 to 70 parts by weight of the ZrO2 semiconductor particles relative to 100 parts by weight of the alumina support particles, and
100 parts by weight of the ZrO2 semiconductor particles and 1 to 50 parts by weight of the noble metal,
wherein the catalyst for purifying the exhaust gas comprises composite nano-particles, wherein the composite nano-particles are the ZrO2 semiconductor particles having the noble metal deposited thereon,
the composite nano-particles are deposited on each the surface of the alumina support particles,
the noble metal is deposited and formed on the ZrO2 semiconductor particles by a photo-deposition method, and
the noble metal comprised in the composite nano-particles amounts to at least 90% by weight of a total noble metal comprised in the catalyst for purifying the exhaust gas.