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US 12,599,961 B2Granted
Noble metal fine particle and use thereof
AssigneeNoritake Co., Limited
InventorsYukiko Kikugawa, Keiko Kato, Yoshiki Watanabe
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Abstract
A noble metal fine particle herein disclosed includes a noble metal element as a main constituent metal element. An imine compound is held on a surface, and an amine/imine ratio (A/I ratio) of an area ratio of a peak area of the imine compound and a peak area of an amine compound determined in pyrolysis GCMS analysis with a pyrolysis temperature of 300° C. is 1 or less.
Claims16
A noble metal fine particle comprising a noble metal element as a main constituent metal element, wherein
- an imine compound is held on a surface of a particle, and
- an amine/imine ratio (A/I ratio) of an area ratio of a peak area of the imine compound and a peak area of an amine compound (including a case of substantially 0) determined in pyrolysis Gas Chromatography-Mass Spectrometry (GCMS) analysis with a pyrolysis temperature of 300° C. is 1 or less,
- wherein the imine compound is a compound expressed by the following structural formula:
- R0R1C═N—(CH2)—R2 where R0 is hydrogen, and R1 and R2 are each a hydrocarbon group with 3 to 7 carbon atoms.
1 more element
Dependencies are inferred from the claim text.