公开(公告)号：US09975107B2

公开(公告)日：2018-05-22

申请号：US15297760

申请日：2016-10-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung Chul Kim ,  Hae Weon Lee ,  Byung Kook Kim ,  Jong Ho Lee ,  Ji Won Son ,  Kyung Joong Yoon ,  Jong Sup Hong ,  Seung Hak Song

IPC: B01J20/06 ,  B01J20/30 ,  B01J23/10 ,  B01J23/75 ,  B01J23/83 ,  B01J21/06

CPC classification number: B01J20/06 ,  B01J20/3078

Abstract: A multi-scaled oxygen storage material wherein cobalt element is complexed with a size of an atom or hundreds of nanometers or smaller in a ceria-zirconia solid solution and a method for preparing the same as provided.Specifically, the multi-scaled oxygen storage material contains a ceria-zirconia solid solution, a cobalt doping contained in the solid solution in the form of an atom and a cobalt-based nanocluster dispersed in the solid solution as cobalt oxide and exhibits a microstructure distinguished from that of the existing ceria-zirconia (CZO)-based oxygen storage material as well as remarkably improved oxygen storage and release ability, and the method for preparing the same is provided.