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材料工程  2012 

特殊结构纳米γAlOOH的溶剂热法制备与机理

, PP. 89-92

Keywords: 有机铝盐,溶剂热法,γAlOOH,结晶机理

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Abstract:

选用有机铝盐(异丙醇铝和醋酸铝)为原料,分别以氨水和尿素为沉淀剂,在200℃的乙醇溶剂热条件下,制备出白色前驱物粉末。通过SEM,XRD和BET等分析手段对产物进行了表征,考察原料与沉淀剂对产物的影响。结果表明不同原料得到不同形貌的纳米γAlOOH,微观形貌分别为纳米级棒状和片状物;溶剂和沉淀剂种类会影响产物的比表面,采用尿素可使比表面积达到218.64m2/g。同时进一步从结晶机理方面分析了这一结果的成因。

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