【摘要】 在表面活性剂聚乙二醇 ( PEG)存在下 ,利用 Cd( Ac) 2 · 2 H2 O,Cd Cl2 · 2 .5 H2 O,3 Cd SO4 · 8H2 O和Cd CO3分别与 Na OH在室温下进行固相化学反应 ,合成了一系列的 Cd( OH) 2 纳米棒 ,并利用 XRD,TEM和 SEM对其结构和形貌进行了表征 .实验结果表明 ,表面活性剂 PEG在 Cd( OH) 2 纳米棒的形成过程中充当软模板 ,对产物形貌的控制起到决定作用 .利用这种表面活性剂辅助的软模板固相化学反应法合成一维纳米材料 ,具有简便易行、反应条件温和以及能耗低等优点 .更多还原

【Abstract】 Cd(OH) 2 nanorods were synthesized by solid-state chemical reactions of {Cd(AC) 2·2H 2O}, {CdCl 2·2.5H 2O}, 3CdSO 4·8H 2O, CdCO 3 and NaOH at room temperature in the presence of a nonionic surfactant, polyethylene glycol 400(PEG-400). The compositions and morphologies of samples were characterized by XRD, TEM and SEM. The results show that surfactant plays a key role in the process of rod-formation and it can act as a soft-template. The method has some advantages, such as simple and facile technique, mild condition and low energy-consumption. It is also expected that the present synthetic method can be extended to prepare other special nanomaterials with desired morphologies by means of choosing suitable surfactant to modify the interface of solid-state chemical reaction.更多还原