Analysis of the potential energy surface of Ar–NH3
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Collision-induced desorption of ammonia chemisorbed on Ptˆ111‰: From direct measurement of the threshold energy to determination of the surface–adsorbate bond strength
We report the desorption of a chemisorbed polyatomic adsorbate from a transition metal surface by a beam of neutral, energetic Ar atoms. From direct measurement of the threshold energy for collision-induced desorption we calculate the surface–adsorbate bond energy. The absolute cross sections for NH3 desorption at one-quarter of a monolayer coverage were measured for Ar beam energies up to ;3 e...
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