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Insertion of Ammonia and Hydrazine into Layer Disulfides
Journal of Physical Chemistry (1975)
  • Juana Vivó Acrivos, San Jose State University
  • C. Delios, San Jose State University
  • N. Y. Topsoe, San Jose State University
  • J. R. Salem, San Jose State University

The stoichiometry and mechanism for insertion of gases into a layer disulfide, 2H-TaS2 + I(g) = 2H1-TaSzo I, (l), where I = NH3 and N2H4, have been investigated by gravimetry and by Cu Ka x-ray diffraction measurements. The results are one, the equilibrium weight gain is constant for I = NzH4 (n = 0.66 f 0.03) but depends on temperature and pressure when I = "3; two, the integrated intensities of the x-ray dif- fraction spectra lines of powdered samples interacting with both NH3 and N2H4 indicate the initial rate of disappearance of the reactant is at least one order of magnitude greater than the rate of appearance of the ordered first-stage intercalated product; and three, the rate of weight gain is first order in the number of sites remaining unoccupied by I = NH3 and NzH4 to within 10% accuracy. A rate mechanism consistent with the data is used to discuss the results.

Publication Date
December, 1975
Publisher Statement
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Citation Information
Juana Vivó Acrivos, C. Delios, N. Y. Topsoe and J. R. Salem. "Insertion of Ammonia and Hydrazine into Layer Disulfides" Journal of Physical Chemistry Vol. 79 Iss. 26 (1975)
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