TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: In the step (a), 3 liters per minute (LPM) of air is flown in to process sintering under a temperature increasing velocity of 5 degrees C/minute to a temperature of 1200 degrees C for 8 hours. In the step (c) is processed for 12 hours. In step (f), 3 LPM of air is flown in to process sintering under a temperature increasing velocity of 5 degrees C/minute to a temperature of 550 degrees C for 4 hours. The step (h) is processed for 12 hours. In step (j), 3 LPM of air is flown in to process sintering under a temperature increasing velocity of 5 degrees C/minute to a temperature of 650 degrees C for 4 hours. The dihydrogen hexachloroplatinate in step (g) is replaced with nickel nitrate hexahydrate to obtain nickel/cerium(IV) oxide/ alpha -aluminum in step (j). Preferred Components: The catalyst of alpha -aluminum trioxide has a cylinder shape with a diameter of 3 mm. EXAMPLE - Gamma-aluminum trioxide was kept into high temperature furnace with an air flown of 3 liters per minute (LPM). Then, gamma -aluminum trioxide was sintered under a temperature increasing velocity of 5 degrees C/minute to temperature of 1200 degrees C for 8 hours. Then, the temperature was cooled down under temperature decreasing velocity of 5 degrees C/minute to obtain grains of catalyst support of alpha -aluminum trioxide. Cerium(III) nitrate hexahydrate (18.6 g) was dissolved in a deionized water to obtain cerium(III)nitrate solution. Catalyst support of alpha -aluminum trioxide (40 g) was impregnated in the cerium(III) nitrate solution for 12 hours. Surplus water of the cerium(III) nitrate solution containing grains of the catalyst support of alpha -aluminum trioxide was taken out by a cyclotron vacuum concentrator to obtain cerium(IV) oxide/ alpha -aluminum trioxide. The cerium(IV) oxide/ alpha -aluminum trioxide was kept into an oven and dried at 110 degrees C for 24 hours. The cerium(IV) oxide/ alpha -aluminum trioxide was kept into a high temperature furnace with an air flown of 3 LPM to be sintered under a temperature increasing velocity of 5 degrees C/minute to a temperature of 550 degrees C for 4 hours. Dihydrogen hexachloroplatinate (21.25 g) was dissolved in deionized water (50 g) to obtain a platinum solution. Cerium(IV) oxide/ alpha -aluminum trioxide (40 g) was impregnated in the platinum solution for 12 hours. Surplus water of the platinum solution containing cerium(IV) oxide/ alpha -aluminum trioxide was taken out by a cyclotron vacuum concentrated, kept into oven and dried at 110 degrees C for 24 hours.The platinum solution containing cerium(IV) oxide/ alpha -aluminum trioxide was kept in a high temperature furnace with air flown to be sintered under a temperature increasing velocity of 5 degrees C/minute to a temperature of 650 degrees C for 4 hours. Then, the temperature was cooled under temperature decreasing velocity of 5 degrees C/minute to obtain a catalyst of platinum/cerium(IV) oxide/ alpha -aluminum trioxide (40 g).