Patent ID: 7871957

Claim:
A catalyst for facilitating a water gas shift reaction, the catalyst comprising a noble metal on a mixed metal oxide, said mixed metal oxide comprising a homogeneous, nanocrystalline, mixed metal oxide of at least three metal constituents, the first metal constituent being cerium, the second metal constituent being selected from the group consisting of Zr, Hf, and a combination of Zr and Hf, and the third metal constituent being Ti, said three metal constituents comprising at least 80% of the metal constituents of said mixed metal oxide and said Ti being present in a range of 5% to 45% by metals only atomic percent of said mixed metal oxide, said mixed metal oxide having an average crystallite size less than 6 nm and agglomerated to form a skeletal structure with pores, average pore diameters being in a range between about 4 nm and 9 nm and greater than the average crystallite size, and wherein the surface area of the skeletal structure per volume of the material of the skeletal structure is greater than about 240 m 2 /cm 3 .