Method for preparing cube shaped copper particles
A technology of copper particles and body shape, which is applied in the field of preparation of cubic copper particles to achieve the effects of high product purity, uniform dispersion and low energy consumption
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Embodiment 1
[0021] (1). Prepare cupric chloride and hydroxylamine hydrochloride aqueous solution respectively, wherein the concentration of cupric chloride in the solution is 1.5 * 10 -3 mole / liter; the concentration of reducing agent is 7.1×10 -3 Mo / L.
[0022] (2). The copper chloride prepared in the step (1) is mixed with the hydroxylamine hydrochloride aqueous solution respectively, so that the concentration of copper chloride in the solution after mixing is 2.1×10 -4 mole / liter; the concentration of hydroxylamine hydrochloride is 5.3×10 -3 Mo / L. Stirring at 35°C for 1 hour gave a yellow suspension. After centrifugation, cube-shaped copper particles were obtained, the side length of which was 145 nm, and it was a yellow precipitate. After the obtained precipitate is vacuum-dried, a copper functional material is obtained. See attached figure 1 .
Embodiment 2
[0024] (1). Prepare copper nitrate and p-phenylenediamine aqueous solution respectively, wherein the concentration of copper nitrate in the solution is 6.2×10 -5 mole / liter; the concentration of p-phenylenediamine is 7.7×10 -3 Mo / L.
[0025] (2). The copper nitrate prepared in the step (1) is mixed with p-phenylenediamine aqueous solution respectively, so that the concentration of copper nitrate in the solution after mixing is 2.3×10 -5 mole / liter; the concentration of p-phenylenediamine is 5×10 -4 Mo / L. Stirring at 20°C for 2 hours gave a yellow suspension. After centrifugation, cube-shaped copper particles were obtained, the particle side length was 265 nm, and it was a yellow precipitate. After the obtained precipitate is vacuum-dried, a copper functional material is obtained.
Embodiment 3
[0027] (1). Prepare copper sulfate and hydrazine hydrate aqueous solution respectively, wherein the concentration of copper sulfate in the solution is 2×10 -3 mole / liter; the concentration of hydrazine hydrate is 6×10 -2 Mo / L.
[0028] (2). The copper sulfate prepared in the step (1) is mixed with the aqueous solution of hydrazine hydrate respectively, so that the concentration of copper sulfate in the mixed solution is 3.5 × 10 -4 mole / liter; the concentration of hydrazine hydrate is 8×10 -3 Mo / L. Stirring at 45 °C for 0.5 h gave a yellow suspension. After centrifugation, cube-shaped copper particles were obtained, the side length of which was 180 nm, and it was a yellow precipitate. After the obtained precipitate is vacuum-dried, a copper functional material is obtained.
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