Study of Local Molecular Ordering in Layered Surfactant-Silicate Mesophase Composites
We have synthesized layered surfactant-silicate mesophase composites using surfactant-templated synthetic routes under hydrothermal conditions. Local molecular ordering in both the bound surfactant and the inorganic framework for these mesophase composites has been observed and investigated using solid-state NMR and X-ray diffraction techniques. Synthesis parameters were systematically varied to determine the key factors that influence the molecular-ordering process. The dynamics and mobility of surfactant molecules at the interface have also been examined using NMR chemical-shift analyses, relaxation-time studies, and 2D WISE measurements. Results from this current work are compared with studies reported on other surfactant-silicate mesoporous materials.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 993680
- Report Number(s):
- PNNL-SA-40866; 2434; KP1704020
- Journal Information:
- Journal of Physical Chemistry B, 107(2):443-450, Journal Name: Journal of Physical Chemistry B, 107(2):443-450
- Country of Publication:
- United States
- Language:
- English
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