| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper powder used for an electrode in a capacitor or the like, which has improved oxidation resistance. SOLUTION: This copper powder has the surface of a copper particle modified with 0.1-20 wt.% sulfur compounds such as mercaptopropionate, dodecanthiol, hexanethiol, methyl thioglycolate, ethyl thioglycolate and cysteine. The method for producing such a copper powder comprises, for instance, reacting a copper compound with a reducing agent in a medium to obtain copper particles, and subsequently contacting the obtained copper particles with a sulfur compound to modify the surface of the copper particles with the sulfur compound. COPYRIGHT: (C)2005,JPO&NCIPI
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