以La(NO_3)_3·6H_2O为原料,用强碱性阴离子交换树脂为沉淀剂,制备了纳米La_2O_3.前驱物及产物进行了TG-DTA、XRD、TEM、HRTEM、SAED、BET等表征.实验结果表明,前驱物是La(OH)_3 ,产物为宽约20nm～25nm、长约为80nm～200nm的板状或棒状La_2O_3纳米多晶体.
Nano-La_2O_3 were synthesized by the precipitation of strong alkaline ion-exchanged resins,using La(NO_3)_3·6H_2O as a raw material. The compositions and morphologies of the precursor compound and the product were characterized by TG-DTA,XRD,TEM,HRTEM,SAED and BET.The experimental results show that the precursor compound is La(OH)_3,and the product is the La_2O_3. Furthermore,the La_2O_3 is the plate-or stick-like nanocrystals with the width of 20nm～25nm and the length of 80nm～200nm.
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