Related Experiment Videos
Formation and structure of titanium alkyl phosphates
Hidekazu Tanaka1, Kanji Masuda, Ryozi Hino
1Department of Material Science, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu, Matsue, Shimane, 690-8504, Japan. hidekazu@riko.shimane-u.ac.jp
Journal of Colloid and Interface Science
|April 19, 2003
Summary
Titanium alkyl phosphates (TiAP) form multilayer structures with alternating alkyl phosphate and hydrated titanium phosphate layers. Outgassing TiAP creates mesoporous materials with uniform 2 nm pores.
Area of Science:
- Materials Science
- Inorganic Chemistry
Background:
- Titanium alkyl phosphates (TiAP) are novel materials with potential applications in catalysis and separation.
- Understanding the structural properties of TiAP is crucial for optimizing their performance.
Purpose of the Study:
- To synthesize and characterize titanium alkyl phosphates (TiAP).
- To elucidate the layered structure and pore formation mechanism in TiAP.
Main Methods:
- Synthesis of TiAP using titanium sulfate and various alkyl phosphates in aqueous media.
- Characterization using X-ray diffraction (XRD) and thermal analysis.
- Analysis of chemical composition and structural formula.
Main Results:
- XRD patterns indicated a layered structure with specific diffraction peaks.
- TiAP synthesized with octyl phosphate exhibited uniform alternating spacings of approximately 0.7 and 2.0 nm.
- Calcination at 900°C resulted in the crystallization of TiP(2)O(7).
- Outgassing above 300°C removed alkyl groups, generating mesopores with a diameter of approximately 2 nm.
Conclusions:
- TiAP possesses a unique multilayer structure composed of alternating alkyl phosphate and hydrated titanium phosphate layers.
- The removal of alkyl groups upon heating leads to the formation of ordered mesoporous titanium phosphate materials.
- These findings provide insights into the synthesis and structural properties of TiAP for potential applications.