4.6 Article

Tailoring the Porous Hierarchy and the Tetrahedral Aluminum Content by Using Carboxylate Ligands: Hierarchically Structured Macro-Mesoporous Aluminosilicates from a Single Molecular Source

期刊

LANGMUIR
卷 26, 期 22, 页码 17603-17616

出版社

AMER CHEMICAL SOC
DOI: 10.1021/la1033355

关键词

-

资金

  1. Belgian Federal Government [1NANOMAT, P6/17]
  2. Belgium-Viet Nam bilateral cooperation [BL/13/V11]
  3. European Union
  4. European Union and the Walloon community

向作者/读者索取更多资源

A novel yet facile synthesis pathway has been developed for the design of hierarchically structured macro-mesoporous aluminosilicates with high aluminum content at tetrahedral sites using a single molecular bifunctional alkoxide (sec-BuO)(2)-Al-O-Si(OE1)(3) precursor. The use of carboxylate ligands and a highly alkaline media slow down the polymerization rate of the aluminum alkoxide functionality, thus permitting the preservation of the intrinsic Al-O-Si linkage. The hierarchically structured porous :aluminosilicate materials present an unprecedented low Si/Al ratio close to 1. Heat treatment applied to the synthesized material seems to favor the incorporation of aluminum into tetrahedral position (intraframework aluminum species). The macro-mesoporosity was spontaneously venerated, without the use of any external templating agent, by the hydrodynamic now (lithe solvents released during the rapid hydrolysis and condensation processes of this double alkoxide. This method results in materials with an open array of interconnected macrochannels. The synthesized aluminosilicate materials with tailorable macro-mesoporous hierarchy and very high AI content at tetrahedral position hold huge promise in various applications as catalysts. catalysts supports, or adsorbents.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据