| Facile synthesis of ordered mesoporous γ-alumina monoliths via polymerization-based gel-casting | |
| Department | 羰基合成与选择氧化国家重点实验室 ; 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Yuan XY(袁晓燕); Xu S(许珊) ; Lu JW(卢静文); Yan XB(阎兴斌); Hu LT(胡丽天); Xue QJ(薛群基)
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| 2011 | |
| Source Publication | Microporous Mesoporous Mater.
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| ISSN | 1387-1811 |
| Volume | 138Pages:40-44 |
| Abstract | Porous c-alumina monoliths with hexagonal mesoporous structures were prepared starting from wellordered mesoporous alumina powders which were firstly synthesized by the self-assembly of aluminum isopropoxide and a triblock copolymer in the presence of nitric acid. The alumina powders were fused together to form alumina monoliths by the integration of polymer gel-casting together with the calcination at different temperatures in air. The powdery and monolithic products were investigated using transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), smallangle X-ray scattering (SAXS), powder wide-angle X-ray diffraction (WA-XRD) and the nitrogen adsorption– desorption isotherm measurements. As results, the as-prepared powdery alumina possesses ordered p6mm hexagonal mesoporosity, high BET surface area and narrow pore-size distribution. After high-temperature calcination, the obtained alumina monoliths still exhibit ordered mesoporosity with hexagonal symmetry, which is very similar to that of the original powdery sample except for the reduced pore volume and specific surface area. The method can be extended to prepare other porous metal oxide monoliths when appropriate powdery metal oxides with a connected pore system are applied. |
| Keyword | C-alumina Monolith Mesoporous Gel-casting |
| Subject Area | 物理化学 |
| Funding Organization | the Top Hundred Talents Program of Chinese Academy of Sciences;the National BasicResearch 973 Program of China;The National Nature Science Foundation of China (51005225) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 多相催化研究组 ; 低维材料摩擦学组 ; 特种油脂和密封材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/391 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Yan XB(阎兴斌) |
| Recommended Citation GB/T 7714 | Yuan XY,Xu S,Lu JW,et al. Facile synthesis of ordered mesoporous γ-alumina monoliths via polymerization-based gel-casting[J]. Microporous Mesoporous Mater.,2011,138:40-44. |
| APA | 袁晓燕,许珊,卢静文,阎兴斌,胡丽天,&薛群基.(2011).Facile synthesis of ordered mesoporous γ-alumina monoliths via polymerization-based gel-casting.Microporous Mesoporous Mater.,138,40-44. |
| MLA | 袁晓燕,et al."Facile synthesis of ordered mesoporous γ-alumina monoliths via polymerization-based gel-casting".Microporous Mesoporous Mater. 138(2011):40-44. |
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