Cu_2(OH)_3 Cl-CuO纳米粉体的制备与表征

Preparation And Characterzation Of Cu_2(OH)_3 Cl-CuO Nanometeric Powder

以氯化铜为原料 ,采用沉淀法制备了 Cu2 ( OH) 3Cl- Cu O纳米粉体 ,并借助XRD、TEM及 IR等技术对粉体结构和催化活性进行了研究 .结果表明 ,粉体的最佳合成条件为 :Cu Cl2 浓度为 0 .5～ 3.0 mol/ L,Na OH浓度为 4.0～ 6 .0 mol/ L,反应液p H值为 8.0～ 9.0 ,蒸汽浴温度为 75～ 90℃ ,保温时间为 0 .5 h.其中反应液 p H值是控制粉体物相、粒子大小、形貌和催化活性的关键 .

Using CuCl 2 as raw matrelal, the title nanometeric powders have prepared by chemical precipitation. The structure and catalytic a ctivity of the powders been investigated by XRD, TEM and IR techniques respectiv ely. The results show that the most favorable conditions of preparing the powder s consist of CuCl 2 concentration 0.5～3.0mol/L, NaOH concentration 4.0～6.0 mo l/L, the pH value of reaction solution 8.0～9.0, the vapor-bath temperature 75～ 90℃,time 0.5h. The pH value is key factor which controls the phase, grain size, morphology and catalytic activity of nanometeric powders among the offective f actors.