DOPE CATALYST CARRYING MATERIAL HAVING OXYGEN STORAGE CAPACITY (OSC) AND MANUFACTURING METHOD THEREF

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PROBLEM TO BE SOLVED : To provide a new type catalyst carrying material having high thermal stability and high OSC for reducing use of Ce-ZrO2 or eliminating use of Ce-ZrO2. SOLUTION : A catalyst carrying material having oxygen storage capacity (D-CZMLA) corresponds to the formula vD : x(Ce1-wZrwO2) : yM : zL : (1-v-x-y-z)Al2O3, where w is a molar ratio between 0.1 and 0.8, v, x, y and z are weight ratios so that V is between 0.005 to 0.15, x is between 0.05 to 0.80 and y and z are between 0.001 to 0.10, M is an interaction accelerator for oxygen storage, L is a stabilizer (L) for an Al2O3 carrier and D is an oxidizing dopant. SELECTED DRAWING : Figure 1A COPYRIGHT : (C)2018, JPO&INPIT