Role of framework sodium versus local framework structure in determining the hydrothermal stability of MCM-41 mesostructures.

@article{Pauly2002RoleOF,
  title={Role of framework sodium versus local framework structure in determining the hydrothermal stability of MCM-41 mesostructures.},
  author={Thomas R. Pauly and Valeri Petkov and Yu Liu and Simon J. L. Billinge and Thomas J. Pinnavaia},
  journal={Journal of the American Chemical Society},
  year={2002},
  volume={124 1},
  pages={97-103}
}
Two mesostructured MCM-41 silicas that differ dramatically in hydrothermal stability have been examined by (29)Si MAS NMR spectroscopy and pair distribution function (PDF) analysis of synchrotron X-ray scattering data. The less stable mesostructure assembled from sodium silicate and the substantially more stable derivative made from fumed silica possess… CONTINUE READING