Invention Grant
- Patent Title: Method for improving resistance to sulfur-poisoning through structural transformation of nano-ceria supported on alumina
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Application No.: US17887142Application Date: 2022-08-12
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Publication No.: US11872541B2Publication Date: 2024-01-16
- Inventor: Hyunjoo Lee , Beom-Sik Kim , Yoon Sang Nam
- Applicant: Hyundai Motor Company , Kia Corporation , Korea Advanced Institute of Science and Technology
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company,Kia Corporation,Korea Advanced Institute of Science and Technology
- Current Assignee: Hyundai Motor Company,Kia Corporation,Korea Advanced Institute of Science and Technology
- Current Assignee Address: KR Seoul; KR Seoul; KR Daejeon
- Agency: Slater Matsil, LLP
- Priority: KR 20210107628 2021.08.13
- Main IPC: B01J21/04
- IPC: B01J21/04 ; B01J23/10 ; B01J23/63 ; B01J20/28 ; B01D53/94 ; B82Y30/00
Abstract:
An embodiment ceria-alumina support (CeO2—Al2O3 support) includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment noble metal catalyst for treating exhaust gas includes a noble metal deposited on a ceria-alumina support (CeO2—Al2O3 support) that includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment method for affecting resistance to sulfur-poisoning of a noble metal catalyst through structural transformation of nano-ceria supported on alumina includes performing a hydrothermal treatment of ceria supported on γ-alumina.
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