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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2010.9.20-24

The growth mechanism of carbon nanotubes within the cluster volume to surface area model

J. Kunstmann, S. Mandati, F. Börrnert, R. Schönfelder, M.H. Rü mmeli, K.K.Karb, G.Cuniberti

Approximate Quantum-Methods: Advances, Challenges and Perspectives

2010.9.20-24; Bremen Center for Computational Materials Science

The influence of mixed catalysts for the high yield production of carbon nanotubes (CNTs) has been studied systematically. Based on extensive experimental data a Catalyst Volume to Surface Area (CVSA) model was developed to understand the influence of the process parameters on the yield and CNT diameter distribution [1]. In our study, we present a refined version of the CVSA model developed by combining experiments and simulations. We discuss our current understanding of the growth mechanism and how the model might be used to increase CNT yields by using mixed catalysts.
[1] S. Tetali et al., ACS Nano 3, 3839 (2009).

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