Synthesis and spectroscopic study of mesoporous aluminum methylphosphonate foam templated by dibutyl methylphosphonate
✍ Scribed by Zongbin Wu; Zhongmin Liu; Peng Tian; Yanli He; Lei Xu; Xiumei Liu; Xinhe Bao; Xianchun Liu
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 541 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1387-1811
No coin nor oath required. For personal study only.
✦ Synopsis
New types of templates and novel interactive mechanisms between template and framework are very important for creating porous materials. In this work, by using neutral dibutyl methylphosphonate as a template, an inorganicorganic hybrid mesoporous material, aluminum methylphosphonate, was prepared. The as-synthesized material was studied by 31 P magnetic angle spinning nuclear magnetic resonance (MAS NMR), 27 Al MAS NMR, 13 C CP/MAS, FT-IR spectroscopy, thermogravimetry (TG), differential thermal analysis (DTA), and transmission electron microscopy. After thermal treatment at 673 K and 10 mmHg for 2 h, hybrid mesoporous foam was obtained. The transformation process was investigated by FT-IR. TG-DTA results indicate that the methyl group bonded to the framework keeps intact up to 792 K under air and 823 K under nitrogen. The characterization results from nitrogen gas adsorptiondesorption measurements show that the BET surface area and the Barrett-Joyner-Halenda desorption cumulative pore volume of the foam are 90 m 2 g À1 and 0.32 cm 3 g À1 respectively.