超增溶胶团自组装合成纳米氧化铝

The synthesis of nanometer alumina via supersolubility micelle nano self-assembly

应用超增溶胶团纳米自组装原理,以硝酸铝和尿素为熔盐,聚异丁烯马来酸三乙醇胺为表面活性剂制备超增溶氢氧化铝胶团,然后以氢氧化铝为前躯体合成纳米氧化铝.采用BET、压汞法、SEM、TEM和XRD方法对合成的氧化铝进行表征.结果表明,纳米氧化铝粒子形状为球形体或棒状体,孔道在几十纳米到几百纳米,粒度分布均匀且纯度较高.

The aluminum nitric,urea and polyisobutylene maleic acid triethanolamine are used as fused salts and surfactant,respectively.The supersolubility aluminium hydroxide micelle colloid is prepared via supersolubility micelle nano self-assembly method.And then aluminium hydroxide is used as precursor to synthesize nanometer alumina.Some characterization techniques,such as BET,mercury injection method,SEM,TEM,and XRD,are applied to characterize the properties of nanometer self-assembly alumina.The results indicate that the nanometer alumina particles possess conglobulation or clava shape with large pore size,uniform granularity distribution and higher purity.