Abstract
Pulsed methods under investigation for their capabilities of splitting water under non-equilibrium conditions into separated pulses of hydrogen and oxygen include pulsed electrocatalytic and pulsed photocatalytic techniques, which utilise dynamic mass spectrometry (Dms) to compare and fully describe the kinetics and separation-in-time achievable between H2 and O2 product pulses in non-equilibrium conditions. Successful photocatalytic applications of the Dms technique are described, including differing time profiles for evolution of hydrogen pulses and carbon monoxide from flash-illuminated surfaces of ruthenium-doped Ti02 catalyst over which low pressures of H2 18O plus CO16O2 were passed. Higher quantum efficiencies — based on molecules of hydrogen observed per photon adsorbed — were observed at the H20+C02/Ru-Ti02 interface than at H2O/Ru-TiO2 interfaces.
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© 1980 Springer Science+Business Media Dordrecht
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Cunningham, J., Tobin, J. (1980). Efficiency of Water Dissociation to Time-Resolved Hydrogen and Oxygen Pulses, through Non-Equilibrium Processes on Catalyst Surfaces. In: Strub, A.A., Imarisio, G. (eds) Hydrogen as an Energy Vector. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-9042-5_5
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DOI: https://doi.org/10.1007/978-94-009-9042-5_5
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