Cheung Chin Li,Lawrence Neil J.,Brewer Joseph R.,Wang Gonghua
申请号：
US201113639778
公开号：
US9561491(B2)
申请日:
2011.04.06
申请国别(地区):
美国
年份:
2017
代理人:
Fish & Richardson P.C.
摘要：
A catalyst that includes cerium oxide having a fluorite lattice structure is provided. The cerium oxide includes cerium atoms in mixed valence states of Ce3+/Ce4+, in which the ratio of Ce3+/(Ce3++Ce4+) in the lattice ranges from 40% to 90% at 20° C. The valence states Ce3+ and Ce4+ are reversible in reduction and oxidation reactions, and the cerium oxide maintains catalytic ability at temperatures at least up to 450° C.
