1993•Journal de Physique IV (Proceedings)Open access
Comparison of kPs values in pure pentene isomers and in abs. EtOH/cis-2-pentene/Pt, abs. EtOH/cis-2-pentene/Pt-on-charcoal and D2O mixtures
Judith L. Ciottone, Michael Brown, K. FUHS, Catherine A. Sheehan
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Abstract
kPs values are an indication of o-Ps reactivity in molecular media via pseudo first order kinetics. Although pure pentene isomers exhibit similar o-Ps annihilation characteristics, cis-2-pentene shows rather unusual behavior when mixed with abs. EtOH and a heavy metal catalyst. In this study, comparison of kPs values in pure 1-pentene, trans-2-pentene and cis-2-pentene isomers with those for various abs. EtOH/pentene isomers/Pt, abs. EtOH/pentene isomer/Pt-on-charcoal and D2O/Pd mixtures will serve to further characterize o-Ps behavior in molecular liquids. The kPs values will also be indirectly related to catalytic activity of Pt and Pt-on-charcoal.