Synthesis of Fine Copper Particles by Reduction of Copper Acetylacetonato Chelate Complex

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  • 銅アセチルアセトナトキレート錯体の還元による銅微粒子の合成
  • ドウ アセチルアセトナト キレート サクタイ ノ カンゲン ニ ヨル ドウ ビ

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The aim of this study was to synthesize fine nickel particles by reducing a copper complex in an organic solvent. The materials used were : bis (acetylacetonato) copper (II) as a copper complex ; tetrahydrofuran, anisole and diphenyl ether as solvents ; sodium borohydride, lithium hydride and hydrazine as reducing agents.<BR>Fine copper particles could be produced when the copper complex dissolved in diphenyl ether was refluxed in N2 atmosphere for one hour with sodium borohydride, of which amount was 7. 5 times greater than the complex in molar ratio. The purity of the product was about 93%, and the particle size was 10 to 20 nm.

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