CATALYST MATERIALS, SYSTEMS, AND METHODS OF MAKING

    公开(公告)号:US20190126252A1

    公开(公告)日:2019-05-02

    申请号:US16166855

    申请日:2018-10-22

    发明人: Lei Nie Yong Wang

    摘要: Disclosed herein are catalyst materials and vehicle catalytic converters having platinum atomically dispersed on a ceria support and having a T90 value less than or equal to 150° C., wherein the T90 value represents the temperature required for 90% CO conversion. Also disclosed are methods of making the catalyst material involving hydrothermally treating at a temperature of at least 700° C. a Pt/ceria material comprising atomically dispersed Pt on a ceria support and activating 90% CO conversion at a temperature less than or equal to 150° C. (i.e., T90≤150° C.).