TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Properties: The skeletal structure with pores has a pore volume per unit mass, Vp, and a structural volume per unit mass, V-S, where the ratio of Vp to V-S (Vp/V-S) is less than 2.5. The surface area of the oxide is at least 180 m2/g, the average crystallite size is at most3.6 nm, and the average pore diameters are at least 4.5 nm. Preferred Composition: Based on metals-only atomic%, the sum of Ce and optional constituent(s) consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Mo, W, Re, Rh, Sb, Bi, V, Mn, Co, Cu, Mo, Ca, Sr, Ba, or Ga is at least 60% and the sum of the constituents consisting of Zr, Hf, Nb, Ta, or Ti is 40% or less. Within the group constituents consisting of Zr, Hf, Nb, Ta, or Ti, a sub-group consisting of Nb, Ta, or Ti comprises 10% or less. The metal constituent(s) comprises up to 20 atomic%, on a metals basis, of Bi. By metals-only atomic%, at least 10% consists of Zr or Hf. The metal concentration in the dilute metal salt solution is less than 0.16 mol/L-less than 0.016 mol/L. The urea in the dilute metal salt solution is greater than 0.5-at least 2 mol/L. Preferred Components: The other ingredient is zirconium or hafnium. The other metal constituent is Zr, Hf, Nb, Ta, Mo, W, Re, Rh, Ti, V, Mn, or Co, the average crystallite size is less than 3.5 nm and the average pore diameters are at least 5 nm. The noble metal is platinum and the solution is tetraamineplatinum nitrate. Preferred Process: After the heating step, the process further comprises maturing the coprecipitate according to thermal schedule. The drying step includes refluxing the coprecipitate in a dry solvent in the presence of heat. After coprecipitating the coprecipitate, the process includes isolating the coprecipitate from the solution. Maturing the coprecipitated solution includes boiling the solution for a first interval and allowing the solution to cool to ambient during a second interval, the sum of the two intervals being less than 72 hours, preferably less than 24 hours. The first interval is 6-10 hours and the second interval is less than 16 hours, and including stirring the solution throughout both the heating/coprecipitating step and the maturing step. After maturing the coprecipitate, the coprecipitate is isolated from the solution and washed with water, and water remaining in the water-washed coprecipitate is replaced by washing the coprecipitate with the water miscible, low surface-tension solvent. The calcining step comprises heating the dried coprecipitate to a calcining temperature of 250-600degreesC for 1-6 hours. The dried coprecipitate is heated to a calcining temperature of 350-500degreesC for 2-4 hours. Surface treating the mixed metal oxide comprises heating the mixed metal oxide in an acid-containing solution of ethanol and the acid at 50degreesC for 2 hours, and rinsing the mixed metal oxide with ethanol until the pH is greater than 4; and loading the noble metal on the surface-treated mixed metal oxide comprises submerging the mixed metal oxide in a solution of tetraamineplatinum nitrate having 1 wt.% platinum, 1 wt.% ammonia hydroxide and 15 wt.% 2-propanol for 2 hours at room temperature to metal load the mixed metal oxide, and filtering and drying the metal loaded mixed metal oxide. The process (P2) further comprises calcining the metal loaded mixed metal oxide for up to 4 hours at a heating rate of 2degreesC/hour at 250-600degreesC, preferably 400-500degreesC.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The water miscible, low surface tension solvent is alcohol, ketone, or ester, each with 4C or less. It is dried 2-propanol (preferably), acetone, methyl ethyl ketone, or 1-propanol. The acid for surface treating the mixed metal oxide is malic acid or citric acid. EXAMPLE - A Ce0.65Zr0.35O2 catalyst support was prepared by dissolving (NH4)2Ce(NO3)6 (26.7 g), ZrO(NO3)2.xH2O (7.2 g), and urea (576 g) in deionized water (4800 ml). The solution was heated to its boiling temperature while stirring until coprecipitation was observed. The mixture was aged at boiling temperature for 7 hours and left stirring at room temperature for 16 hours. It was filtered and filter cake was washed twice with deionized water (500 ml) at boiling temperature while stirring for 10 minutes, and filtered after each washing. The filter cake was washed thrice with dried 2-propanol (100 ml) and extruded. The extrudates were dried at 70degreesC for 3 hours and left at 70degreesC for 16 hours without vacuum. They were calcined at 500degreesC for 4 hours at 2degreesC/minute. The sample support had surface area of 180 m2/g, and average crystallite size of 34.1 Angstrom . The pore volume was 0.25 cm3/g and the average pore diameter was 55 Angstrom .