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Structural and dynamic study in disordered materials by nuclear magnetic resonance


This project aims to the structural and dynamic study in disordered materials by solid state Nuclear Magnetic Resonance. The principal focus will be towards the study of glassy materials and glass ceramics which have the composition based composition LiTi2 (PO4)3. The interest the study in these systems is based on crystallization to obtain NASICON-type structures (Na Super Ionic Conductor), highly conductive. Recently, these materials have been shown to be promising materials for use in solid electrolytes in batteries lithium/air. However obtaining these materials with desirable characteristics, ie composition and formation of microstructures have been extensively studied. For structural study will be employed multinuclear solid state NMR spectroscopy, which are particularly sensitive not only to the structural characterization, but also as a probe dynamic processes of ions that characterize ionic transport in nano scale on diffusion and long range.The project also aims the structural study by NMR in solid state hybrid materials prepared from sol-gel process, in collaboration with researchers from this Institution. These nanostructured materials, in recent years have formed the majority of the research effort, focused on the study of surface properties, molecular structure, dynamics and the reactions of the adsorbed species. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SANTAGNELI, SILVIA H.; BALDACIM, HELIO V. A.; RIBEIRO, SIDNEY J. L.; KUNDU, SWARUP; MARTINS RODRIGUES, ANA CANDIDA; DOERENKAMP, CARSTEN; ECKERT, HELLMUT. Preparation, Structural Characterization, and Electrical Conductivity of Highly Ion-Conducting Glasses and Glass Ceramics in the System Li1+xAlxSnyGe2-(X+Y)(PO4)(3). Journal of Physical Chemistry C, v. 120, n. 27, p. 14556-14567, . (13/02456-1)

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