Abstract
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 language | English |
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Pages (from-to) | 813-818 |
Number of pages | 6 |
Journal | Journal of the Chemical Society, Faraday Transactions |
Volume | 83 |
DOIs | |
Publication status | Published - 1987 |