Permeation of hydrogen through platinum: A re-evaluation of the data of Chou et al

Details Permeation of hydrogen through platinum: A re-evaluation of the data of Chou et al Permeation of hydrogen through platinum: A re-evaluation of the data of Chou et al

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980gecoa..44..899h&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 44, Issue 6, pp.899-900

Physics

1

Scientific paper

The calculations of Chou et al . are revised to include effects that were neglected in the original work. The measured data are associated with permeability rather than diffusivity. The hydrogen concentration in the platinum membrane is assumed to be proportional to the square root of the hydrogen fugacity in the gas phase in conformity with experimental measurements at lower pressures. An approximate solution to the resulting mass transport equations is derived which simplifies the data analysis. The calculated permeabilities agree within experimental uncertainty with those determined by time lag experiments.

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