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the tubes or to check for interaction with itinerant electrons. Using SWNT grown by different methods, the dominant influence of tube diameter on fullerene dynamics was revealed by temperature dependent pulsed EPR experiments. These differences are discussed and can be correlated with the varying interaction between the fullerenes and the nanotube wall. [1] K. Hata, D. N. Futaba, K. Mizuno, T. Namai, M. Yumura, and S. Iijima, Science 304 (2004) 1362 [2] B. Corzilius, A. Gembus, N. Weiden, K.-P. Dinse, and K. Hata, phys. stat. sol. (b) 234 (2006) 3273
A Sa 19. 5. 2007, 14.55–15.15 21 Kurzvortrag - Hauptthema Tips and trick on storing hydrogen in carbon structures Lyuben Zhechkov 1 Thomas Heine 1 Serguei Patchkovskii 2 , Gotthard Seifert 1 (1) Technische Universität Dresden, Institut <strong>für</strong> <strong>Physikalische</strong> und Elektrochemie (2) Steacie Institute for Molecular Sciences National Research Council Canada Many methods have been proposed for efficient storage of molecular hydrogen for fuel cell applications. However, despite intense research efforts, so far to our knowledge, the industrial parameters of 6.5% mass ratio and 62 kg/m 3 volume density are still questionable though the results are obtained by either experimentally or via theoretical simulations on reversible model systems. Carbon-based materials, have always been regarded as the most attractive physisorption substrates for the storage of hydrogen. Theoretical and experimental studies on various model carbon systems, however, failed to reach the elusive goal. Here, we show that insufficiently accurate carbon – H 2 interaction potentials, together with the neglect and incomplete treatment of the quantum effects in previous theoretical investigations, led to misleading conclusions for the absorption capacities of different carbon materials. A proper account of the contribution of quantum effects to the free energy and the equilibrium constant for hydrogen adsorption suggest that the industry specifications can be approached in a graphite-based physisorption system. The theoretical prediction can be realized by optimizing the topology, and the cavity shape of carbon structures, which can be lightweight, chemically inert, and environmentally harmless.
Page 1 and 2: Bunsentagung 2007 Graz 106. Hauptve
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Page 5 and 6: Geschichte der Physikalischen Chemi
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ing from solvent-mediated particle
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exhibiting in water a pKa of about
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molecule. Furthermore, a dipole lay
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Au atoms on the MgO(001) surface. W
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porphyrin-coordinated metal ion and
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Dielektrizitätszahl belegt, deren
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in the c-direction. This clearly in
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spectroscopic data will be discusse
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auf. Die elektrischen Eigenschaften
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increase in the damping of the quar
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[2] Y.-G. Guo, Y.-S. Hu, and J. Mai
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elektrochemischen in-situ Methoden
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Die Bildung von Blasen während ano
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Sa 19. 5. 2007, 9.20-9.40 D Kurzvor
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der Kraftkonstante im Minimum des e
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quency range from 1 mHz to 6 GHz. S
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erhöhte Reaktionsrate in denjenige
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Schaltzeiten möglich wird. Hierzu
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technique, a sharp tip is scanned o
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[1] T.W. Kim, R. Ryoo, K.P. Giersza
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applications. Controlled modificati
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(< 200 m 2 /g). In order to overcom
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[1] A. Bornschlegl and U. Boesl, Ch
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flexible bridges in various solvent
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verlustes von Temperatur und Sauers
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complete trajectory of the oscillat
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tems for the study the behaviour of
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geben daher Aufschluss über die so
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chemically active Fe 3 O 4 support.
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while the opposite deposition order
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stimmen. Vergleiche mit dem Radius
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coordinated surface elements that a
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Particular attention is paid to how
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ermöglicht die Vorhersage der beob
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Here we report the influence of ads
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P Fr 18. 5. 2007, 18.30-22.00 100 P
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P Fr 18. 5. 2007, 18.30-22.00 101 P
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P Fr 18. 5. 2007, 18.30-22.00 103 P
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P Fr 18. 5. 2007, 18.30-22.00 105 P
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P Fr 18. 5. 2007, 18.30-22.00 106 P
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P Fr 18. 5. 2007, 18.30-22.00 107 P
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P Fr 18. 5. 2007, 18.30-22.00 108 P
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P Fr 18. 5. 2007, 18.30-22.00 110 P
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P Fr 18. 5. 2007, 18.30-22.00 111 P
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et al. in flüssigem Hexadecylamin
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P Fr 18. 5. 2007, 18.30-22.00 114 P
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P Fr 18. 5. 2007, 18.30-22.00 116 P
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P Fr 18. 5. 2007, 18.30-22.00 117 P
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P Fr 18. 5. 2007, 18.30-22.00 118a
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P Fr 18. 5. 2007, 18.30-22.00 120 P
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P Fr 18. 5. 2007, 18.30-22.00 122 P
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P Fr 18. 5. 2007, 18.30-22.00 123 P
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P Fr 18. 5. 2007, 18.30-22.00 125 P
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P Fr 18. 5. 2007, 18.30-22.00 127 P
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propanol, attaches relatively stron
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[2] Mäkelä, R.; Vuolle, M. Journa
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from methane (Appearance Potential
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P Fr 18. 5. 2007, 18.30-22.00 132 P
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P Fr 18. 5. 2007, 18.30-22.00 133 P
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P Fr 18. 5. 2007, 18.30-22.00 135 P
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P Fr 18. 5. 2007, 18.30-22.00 136 P
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P Fr 18. 5. 2007, 18.30-22.00 138 P
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P Fr 18. 5. 2007, 18.30-22.00 140 P
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P Fr 18. 5. 2007, 18.30-22.00 141 P
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P Fr 18. 5. 2007, 18.30-22.00 143 P
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P Fr 18. 5. 2007, 18.30-22.00 144 P
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P Fr 18. 5. 2007, 18.30-22.00 146 P
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P Fr 18. 5. 2007, 18.30-22.00 148 P
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P Fr 18. 5. 2007, 18.30-22.00 150 P
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P Fr 18. 5. 2007, 18.30-22.00 152 P
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P Fr 18. 5. 2007, 18.30-22.00 153 P
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Index Ackermann P112 Adeagbo P79 Ad
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Fischer J.-H. P58, P60 Flechtner C8
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Koeppe B2 Köhler A. P116 Köhler M
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Paschek P145 Patchkovskii A21 Patzk
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Tran P17 Trettenhahn C28 Trimmel P7
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