Ionization on Platinum and Tungsten Surfaces. I. The Alkali Metals
- 1 September 1956
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 25 (3) , 389-394
- https://doi.org/10.1063/1.1742931
Abstract
The ionization of all of the alkali metals on tungsten and on tungsten oxide surfaces follows the Saha‐Langmuir equation with no reflection. On platinum, however, a departure from this equation indicates partial reflection of the atoms. The reflection of Na is probably 0%, since the ionization efficiency is given closely by the Saha‐Langmuir equation with a value of 5.50 ev for the work function of Pt at 2000°K. The same value of the work function then indicates reflections of 18% for Li, 48% for K, 22% for Rb, and 8% for Cs, at 2000°K.Keywords
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