Cerium oxide nanoparticle, dispersion body, oxidant, antioxidant, and method of producing cerium oxide nanoparticle
AssigneeToray Industries, Inc.
InventorsShota Sekiguchi, Takahiro Motoshiromizu, Masateru Ito
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Abstract
A cerium oxide nanoparticle is produced by mixing a solution of an aromatic heterocyclic compound having no substituent or at least one substituent selected from the group consisting of a methyl group, an ethyl group, an amino group, an aminomethyl group, a monomethylamino group, a dimethylamino group, and a cyano group and containing 2 to 8 carbon atoms and 1 to 4 nitrogen atoms in a ring structure of the aromatic heterocyclic compound, with a solution containing a cerium (III) ion or with a cerium (III) salt, followed by addition of an oxidant.
Claims14
A cerium oxide nanoparticle produced by 1) mixing a solution of an aromatic heterocyclic compound having no substituent or at least one substituent selected from the group consisting of a methyl group, an ethyl group, an amino group, an aminomethyl group, a monomethylamino group, a dimethylamino group, and a cyano group and containing 2 to 8 carbon atoms and 1 to 4 nitrogen atoms in a ring structure of the aromatic heterocyclic compound, with a solution containing a cerium (III) ion or with a cerium (III) salt, 2) followed by addition of an oxidant.
A cerium oxide nanoparticle comprising:
- an aromatic heterocyclic compound having no substituent or at least one substituent selected from the group consisting of a methyl group, an ethyl group, an amino group, an aminomethyl group, a monomethylamino group, a dimethylamino group, and a cyano group and containing 2 to 8 carbon atoms and 1 to 4 nitrogen atoms in a ring structure of the aromatic heterocyclic compound, wherein the cerium oxide nanoparticle has maximum absorptions of 5726.0 eV to 5729.0 eV and 5735.0 eV to 5739.0 eV in a CeL3 edge XANES spectrum obtained by an X-ray absorption fine structure spectroscopy.
A method of producing a cerium oxide nanoparticle comprising:
- mixing a solution of an aromatic heterocyclic compound having no substituent or at least one substituent selected from the group consisting of a methyl group, an ethyl group, an amino group, an aminomethyl group, a monomethylamino group, a dimethylamino group, and a cyano group and containing 2 to 8 carbon atoms and 1 to 4 nitrogen atoms in a ring structure of the aromatic heterocyclic compound, with a solution containing a cerium (III) ion or with a cerium (III) salt;
- and
- adding an oxidant.
Dependencies are inferred from the claim text.