Chapter 125. Thermodynamics, Kinetics and Catalysis in the System Ni[BOND]Si[BOND]H[BOND]Cl: Thermodynamic Description of Chlorine-Containing Silicides

  1. Prof. Norbert Auner3 and
  2. Prof. Johann Weis4
  1. Jörg Acker1,
  2. Klaus Bohmhammel1 and
  3. Gerhard Roewer2

Published Online: 28 APR 2008

DOI: 10.1002/9783527619917.ch125

Organosilicon Chemistry IV: From Molecules to Materials

Organosilicon Chemistry IV: From Molecules to Materials

How to Cite

Acker, J., Bohmhammel, K. and Roewer, G. (2000) Thermodynamics, Kinetics and Catalysis in the System Ni[BOND]Si[BOND]H[BOND]Cl: Thermodynamic Description of Chlorine-Containing Silicides, in Organosilicon Chemistry IV: From Molecules to Materials (eds N. Auner and J. Weis), Wiley-VCH Verlag GmbH, Weinheim, Germany. doi: 10.1002/9783527619917.ch125

Editor Information

  1. 3

    Inst. für Anorganische Chemie, der Universität Frankfurt, Marie-Curie-Strasse 11, D-60439 Frankfurt am Main, Germany, Phone: 0 69/7 98-29180, -29591, Fax: 069/798-29188

  2. 4

    Wacker-Chemie GmbH, Geschäftsbereich S, Werk Burghausen, Johannes-Hess-Strasse 24, D-84489 Burghausen, Germany

Author Information

  1. 1

    Institut für Physikalische Chemie Technische Universität Bergakademie Freiberg Leipziger Str. 29, D-09596 Freiberg, Germany Tel.: Int. code + (3731)39 4324 —Fax: Int. code + (3731)39 3588

  2. 2

    Institut für Anorganische Chemie Technische Universität Bergakademie Freiberg Leipziger Str. 29, 0–09596 Freiberg, Germany Tel.: Int. code + (3731)39 3174—- Fax: ht. code + (3731)39 4058

Publication History

  1. Published Online: 28 APR 2008
  2. Published Print: 17 JAN 2000

ISBN Information

Print ISBN: 9783527298549

Online ISBN: 9783527619917

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Keywords:

  • chlorine-containing silicides;
  • trichlorosilane;
  • thermodynamics

Summary

Transition metal silicides, containing small amounts of chlorine, act as catalysts in the hydrodechlorination of silicon tetrachloride into trichlorosilane. Silicides, with comparable properties to the catalytically active phases, can be prepared by the reaction of silicon-rich silicides with the respective metal chloride. For the first time a thermodynamic model of chlorine-containing nickel silicides is given. Chlorine is considered to be dissolved in the silicides and is modeled as a lattice gas. Consequences regarding the bonding state of chlorine in the silicide phases are reported and discussed in relationship with the interactions within the silicide lattice.