High-efficiency surface-induced dissociation on a rhenium oxide surface

Shai Dagan, Aviv Amirav*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


We report on the high-efficiency surface-induced dissociation of benzene and cyclohexane polyatomic ions after scattering from a rhenium oxide surface with a kinetic energy of 5-290 eV. Rhenium oxide was prepared by directly heating a rhenium metal foil, under 10-5 mbar partial oxygen pressure, at about 1000 K. Rhenium oxide is characterized by a very high work function of 6.4 eV and thus minimizes ion reneutralization probabilities. The catalytic combustion of surface organic impurities with oxygen ensures good long-term stability. We found that the surface-induced dissociation ion current is 70 times larger on rhenium oxide than on bare rhenium or stainless steel. Absolute scattered ion yields of about 50% were measured. The implications of surface-induced dissociation on mass spectrometry in supersonic molecular beams are mentioned.

Original languageEnglish
Pages (from-to)869-873
Number of pages5
JournalJournal of the American Society for Mass Spectrometry
Issue number11
StatePublished - Nov 1993


FundersFunder number
Academy of Leisure Sciences


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