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Updated: Jul 7, 2026
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Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
Organic molecule-modulated phase evolution of inorganic mesostructures.
Junming Sun1, Ding Ma, He Zhang
1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
Langmuir : the ACS Journal of Surfaces and Colloids
|February 9, 2008
Summary
Alkane chain length and initial reaction temperature significantly influence mesoporous silica structures by altering emulsion phase behavior. This provides control over the synthesis of diverse inorganic materials.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- The P123-TEOS-NH4F-H3O+ system is a complex emulsion used for synthesizing mesoporous materials.
- Alkane involvement dramatically alters emulsion phase behavior, impacting resulting material structures.
Purpose of the Study:
- To understand the phase evolution of alkane-P123-TEOS-NH4F-H3O+ emulsion systems.
- To investigate the influence of alkane chain number (ACN) and initial reaction temperature (IRT) on mesostructure formation.
Main Methods:
- High-resolution electron microscopy (HREM)
- X-ray diffraction (XRD)
- Nitrogen sorption
- Freeze-fracture electron microscopy (FFEM)
- Interfacial tension measurements
Main Results:
- A linear relationship was found between phase-transformation temperature (PTT) and ACN.
- Alkane modification of hydrophobic-hydrophilic properties drives phase behavior.
- Reaction temperature and ACN influence P123 surfactant aggregate geometry, leading to diverse mesoporous silica structures.
Conclusions:
- Alkane chain number and initial reaction temperature are critical parameters for controlling mesoporous silica synthesis.
- A temperature-induced phase-transformation mechanism governs the formation of diverse mesostructures.
