It is an object of the present invention to provide a novel composite oxide which exhibits excellent oxygen absorbing and desorbing capability particularly at low temperatures, and which can be used as {HEAD ~ a co catalyst} for {TAIL ~ a catalyst} for purifying exhaust gases and as functional ceramics 
for
It is an object of the present invention to provide a novel composite oxide which exhibits excellent oxygen absorbing and desorbing capability particularly at low temperatures , and which can be used as { HEAD ~ a co catalyst } for { TAIL ~ a catalyst } for purifying exhaust gases and as functional ceramics
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