CPC A01N 25/26 (2013.01) [A01N 59/16 (2013.01); A01P 1/00 (2021.08); A01P 3/00 (2021.08); C01F 17/10 (2020.01); C01F 17/235 (2020.01); C09K 15/02 (2013.01); C09K 15/30 (2013.01)] | 12 Claims |
1. A cerium oxide nanoparticle comprising:
a center nucleus formed of a mixture of Ce2O3 and CeO2; and
a polymer layer covering the center nucleus, the polymer layer being formed of a vinyl polymer having a heterocyclic amine skeleton or of a polyamide having a heterocyclic amine skeleton,
wherein a ratio of Ce4+to Ce3+is 1.24 to 4.00.
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