| pH值对沉淀法制备Cu2(OH)3Cl-CuO超细粉体催化活性的影响 |
| EFFECT OF pH VALUE ON THE CATALYTIC ACTIVITY OF Cu2(OH)3Cl-CuO ULTRAFINE POWDER PREPARATION BY PRECIPITATION METHOD |
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| 摘要: |
| 关键词: pH值 沉淀法 超细粉体 |
| 基金项目: |
| Abstract: The title ultrafine powders were prepared by chemical precipitation, using CuCl2 as raw material. The effect of the pH value of reaction solution on the phase, grain size, morphology and catalytic act-ivity of ultrafine pow-ders for H2O2 decomposition were investigated by the means of XRD and TEM. The experiment results show that with the increase of pH value from 7 to 14, the phase of the powders changes from simple Cu2(OH)3Cl to Cu2(OH)3Cl and CuO then to pure CuO and the catalytic activity of the powders versus pH passes through a maxinum at the pH=8.5, at which the grain size is about 15 nm and the powder exhibits the highest surface area and activity among the samples studies. |
| Keywords: pH value precipitation method copper ultrafine powder |
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| 摘要点击次数: 1998 |
| 全文下载次数: 1772 |
| 李东升,王文亮,杨文选,巩育军,史振民.pH值对沉淀法制备Cu2(OH)3Cl-CuO超细粉体催化活性的影响[J].无机化学学报,1999,15(6):817-820. |
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