Thermal desorption of the PO radical from polycrystalline Pt surfaces

C. S. Dulcey*, Ming-Chang Lin, C. C. Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


The PO radical was detected to desorb from polycrystalline Pt surfaces during the catalytic decomposition of dimethyl methyl phosphonate and trimethyl phosphite above 1100 K using the laser-induced fluorescence technique. The activation energy for the desorption of adsorbed PO radicals, PO(a) → PO(g), was determined to be 59±2 kcal/mol in the temperature range 1100-1350 K at different radical source pressures. The mechanisms for PO production from these two catalytic reactions are briefly discussed.

Original languageEnglish
Pages (from-to)481-485
Number of pages5
JournalChemical Physics Letters
Issue number6
StatePublished - 19 Apr 1985


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