公开(公告)号：US20170297000A1

公开(公告)日：2017-10-19

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

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 are provided.Specifically, The multi-scaled oxygen storage material contains a ceria-zirconia solid solution, a cobalt dopping 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.