Patent ID: 7597978

Claim:
A method of manufacturing a ceramic-NiO composite powder with a core-shell structure, wherein said core comprises a ceramic and said shell comprises NiO, said method comprising: (a) milling a ceramic material, thus forming a ceramic powder; (b) forming a nickel-containing basic salt of Ni(OH) 2 by mixing Ni(NO 3 ) 2 and NH 4 HCO 3 ; (c) manufacturing said ceramic-Ni(OH) 2 composite powder by depositing said nickel-containing basic salt on the surface of said ceramic powder; (d) separating said ceramic-Ni(OH) 2 composite powder by filtration or ultracentrifugation; and (e) calcining the product of step (d) at 150-250° C. for about 90-150 mm thus forming the ceramic-NiO composite powder.