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TiO_2纳米管的模板法制备及表征 被引量:73
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作者 李晓红 张校刚 力虎林 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2001年第1期130-132,共3页
The template method for preparing nanostructures entails the synthesis of the desired material within the pores of a nanoporous membrane. In this work, TiO2 nanotubules of the anatase form have been synthesized by sol... The template method for preparing nanostructures entails the synthesis of the desired material within the pores of a nanoporous membrane. In this work, TiO2 nanotubules of the anatase form have been synthesized by sol-gel chemical method using porous anodic alumina as the template. Transmission electron microscopy(TEM), scanning electron microscopy(SEM), infrared spectroscopy(IR) and X-ray diffraction were used to investigate the structure and morphology of the TiO2 nanotubules. The results showed that the diameter and length of the obtained nanotubules were determined by the pore size and length of the PAA template. It was founded that through control of immersion time, both tubules and fibrils can be prepared; in addition, the wall thickness of the nanotubules can be varied at will. The result indicated that the sol particles absorbed preferably to the pore walls of the PAA membrane due to the fact that the pore walls were negatively charged and the TiO2 particles were positively charged. 展开更多
关键词 二氧化钛 纳米管 多孔阳极氧化铝 溶胶凝胶 电子显微境 模板法制备 表征
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三维有序介孔和大孔过渡金属氧化物的硬模板制备及催化应用 被引量:4
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作者 戴洪兴 邓积光 +2 位作者 夏云生 张汝珍 张磊 《无机盐工业》 CAS 北大核心 2012年第5期55-58,共4页
总结了课题组以硬模板法制备三维有序介孔Cr2O3(3DOMeso-Cr2O3)、Co3O4(3DOMeso-Co3O4)、MnO2(3DOMeso-MnO2)、Fe2O3(3DOMeso-Fe2O3)和三维有序大孔Fe2O3(3DOMacro-Fe2O3)及其催化氧化挥发性有机物的研究进展。以三维有序介孔二氧化硅KI... 总结了课题组以硬模板法制备三维有序介孔Cr2O3(3DOMeso-Cr2O3)、Co3O4(3DOMeso-Co3O4)、MnO2(3DOMeso-MnO2)、Fe2O3(3DOMeso-Fe2O3)和三维有序大孔Fe2O3(3DOMacro-Fe2O3)及其催化氧化挥发性有机物的研究进展。以三维有序介孔二氧化硅KIT-6为硬模板,可制备出3DOMeso-Cr2O3-1、3DOMeso-Cr2O3-2、3DOMeso-Co3O4-1和3DOMeso-Fe2O3,比表面积分别为106、124、121、113 m2/g;以三维有序介孔二氧化硅SBA-16为硬模板,可制备出3DOMeso-Co3O4-2、3DOMeso-Co3O4-3和3DOMeso-MnO2,比表面积分别为118、313、266 m2/g;以规整排列的聚甲基丙烯酸甲酯微球为硬模板,可获得3DOMacro-Fe2O3,比表面积为42 m2/g。这些三维有序介孔或大孔结构的过渡金属氧化物对典型挥发性有机物(甲苯、甲醛、甲醇、丙酮和乙酸乙酯)氧化反应显示出优异的催化性能。 展开更多
关键词 模板制备 三维有序介孔过渡金属氧化物 三维有序大孔氧化铁
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