Abstract
The stabilization of nanoparticles to prevent agglomeration is of great importance for their application. To achieve long-term stable particle dispersions that can be stored and processed, and to clarify stabilization mechanisms in detail, the stabilization of metal oxide nanoparticles with small molecules was investigated. Particularly, the adsorption of the stabilizer and thereby the dynamic and kinetic processes on the surface of the metal oxide nanoparticles are essential for the stabilization process. Within this project, particle-stabilizer-solvent-interactions for different particle systems, ITO and ZrO2, were described and influences of the chain length, the stabilizer concentration as well as the binding strength between stabilizer and surface were investigated and modeled. The developed model enables a prediction of the efficiency of the systems and about optimized combinations of stabilizer-particle-solvent systems.
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Acknowledgments
The authors gratefully acknowledge the financial support provided by the German Research Foundation within SPP 1273 grants GA 1492/4-1 and 2. Furthermore, the authors acknowledge Dr. D. Vollmer and K. J. Chiad from the MPI Mainz for the isothermal titration calorimetry, Prof. Dr. C. Schmidt and M. Kube from the University Paderborn for the solid-state-13C-NMR spectroscopy, Dr. K. Ibrom and P. Holba-Schulz from the TU Braunschweig for the NMR spectroscopy measurements, Dr. H.-O. Burmeister, S. Meyer and P. Reich for the elemental analysis as well as Dr.-Ing. D. Segets and Prof. Dr.-Ing. W. Peukert from the Institute of Particle Technology (LFG Erlangen) and Dr.-Ing. C. Schilde and Prof. Dr.-Ing. A. Kwade for discussions within the project.
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Zellmer, S., Grote, C., Cheema, T.A., Garnweitner, G. (2015). Small-Molecule Stabilization Mechanisms of Metal Oxide Nanoparticles. In: Kind, M., Peukert, W., Rehage, H., Schuchmann, H. (eds) Colloid Process Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-15129-8_4
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DOI: https://doi.org/10.1007/978-3-319-15129-8_4
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