Materials nanoporous

A number of different approaches have been taken to describing transport in porous media. The objective here is not to review all approaches, but to present a framework for comparison of various approaches in order to highlight those of particular interest for analysis of diffusion and electrophoresis in gels and other nanoporous materials. General reviews on the fundamental aspects of experiments and theory of diffusion in porous media are given... 

Proceedings of the 5 " International Symposium on the Characterisation of Porous Solids (COPS-Vj, Heidelberg, Germany, May 30- June 2, 1999 edited by K.K.Unger,G.Kreysa and J.P. Ba lt Volume 129 Nanoporous Materials II... 

Edited by A. Gamba, C. Colella and S. Coluccia Volume 141 Nanoporous Materials III... 

In the past two decades, 129Xe NMR has been employed as a useful technique for the characterization of the internal void space of nanoporous materials. In particular, the xenon chemical shift has been demonstrated to be very sensitive to the local environment of the nuclei and to depend strongly on the pore size and also on the pressure [4—6], Assuming a macroscopic inhomogeneity resulting from a distribution of adsorption site concentrations, 129Xe NMR spectra of xenon in zeolites have been calculated, and properties such as line widths, shapes as well as their dependence on xenon pressure can be reproduced qualitatively. A fully quantitative analysis, however, remains difficult due to the different contributions to the xenon line shift. (See Chapter 5.3 for a more detailed description of Xe spectroscopy for the characterization of porous media.)... 

Proceedings of the 3rd International Symposium on Nanoporous Materials, Ottawa, Ontario, Canada, June 12-15, 2002 edited by A. Sayari and M. Jaroniec... 

Multilayer Halloysite Assembly lor Organized Nanofilms. Forming Low Density Tubule Nanoporous Materials... 

The authors wish to thank the Wallenburg Foundation and L. Itzel Meza, formerly of The Centre for Nanoporous Materials, for providing the zeolite A crystals. 

Combined MS and NMR attractive route to future understanding of the first stages of nucleation of nanoporous materials... 

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