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双孔TiO_2-Al_2O_3复合物氧化物的制备及表征 被引量：2

Preparation and characterization of meso/macroporous composite oxides TiO_2-Al_2O_3
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摘要 分别用溶剂蒸发诱导自组装(EISA)方法及溶胶-凝胶法制备了具有大孔/介孔结构的Al2O3-TiO2复合氧化物材料。X射线粉末衍射(XRD)分析结果表明,复合物中TiO2与Al2O3的相互作用改变了晶型的转变温度,提升了TiO2的晶型转变温度,从而提高了其热稳定性。扫描电子显微镜(SEM)分析结果表明,EISA方法合成的材料具有更利于活性成分负载的三维连续大孔结构。 Bimodal porous titania-alumina composite oxides were prepared via the self-assembly process based on solvent evaporation and the sol-gel method. X-Ray powder diffraction measurements indicated that the interaction between Al2O3 and TiO2 in the complex change the crystalline temperature, which promote the transition temperature of TiO2 crystal shape, so as to increase the thermal stability. Scanning electron mi- croscopy measurements indicated that the composite oxides possess interconnected macropores, which are more advantageous to load active component.
作者 黄玉娟 李浔 张丽敏 张跃飞 戴益民
机构地区 长沙理工大学化学与生物工程学院电力与交通材料保护湖南省重点实验室
出处 《应用化工》 CAS CSCD 2013年第5期870-872,880,共4页 Applied Chemical Industry
基金 湖南省重点实验室开放基金(2010c106) 长沙市科技计划重点项目(k1005012-11)
关键词 氧化钛 氧化铝 复合氧化物 介孔 大孔 titania alumina composite oxide mesopore macropore
分类号 TQ133 [化学工程—无机化工] TQ426 [化学工程]
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参考文献12

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二级参考文献51

共引文献38

同被引文献31

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应用化工
2013年 第5期

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