supported by the National Natural Science Foundation of China (20640430564 and 20820102035);the Knowledge Innovation Program of the Chinese Academy of Sciences (KJCX2-YW-M15);the Ministry of Health (2008ZX10001-014)
Novel poly(N-vinyl-2-pyrrolidone) (PVP)-coated nickel ferrite nanocrystals were prepared by simultaneously pyrolyzing nickel(Ⅱ) acetylacetonate (Ni(acac)2) and iron(Ⅲ) acetylacetonate (Fe(acac)3) in N-vinyl-2-pyrrol...