Cross-Relaxation of Hydrogen-Atoms Adsorbed on a Molybdena Silica Catalyst

S SEYEDMONIR, Russell Francis Howe

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


E.p.r. spectra of adsorbed hydrogen atoms generated during photoreduction of molybdena-silica catalysts in H2 at 77 K or below show an anomalous intensity ratio for the hyperfine components. It has been shown that this is due to cross-relaxation between the hydrogen atoms and Mo5+ cations produced during photoreduction. Estimates are made of the cross-relaxation rate and the correlation distance between the two paramagnetic species.

Original languageEnglish
Pages (from-to)813-818
Number of pages6
JournalJournal of the Chemical Society, Faraday Transactions
Publication statusPublished - 1987


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