DECARBONYLATION AND HYDROGENATION REACTIONS OF ALLYL ALCOHOL AND ACROLEIN ON PD(110) Academic Article uri icon

abstract

  • Allyl alcohol and acrolein reactions on the Pd(110) surface were investigated using temperature programmed desorption. For both unsaturated oxygenates, three coverage-dependent reaction pathways were observed. At low coverages, allyl alcohol decomposed completely to CO, hydrogen and carbonaceous species on the surface. For > 0.15 monolayer, ethylene (and small amounts of ethane) desorbed at ca. 295 K. Near saturation coverages, desorption of propanal was detected at ca. 235 K. The parent molecule, allyl alcohol, desorbed only after exposures sufficient to saturate these channels. Acrolein decomposition spectra were similar to those observed for allyl alcohol decomposition on the clean surface. Additional experiments with allyl alcohol on hydrogen- and deuterium-precoveredPd(110) surfaces demonstrated increased hydrogenation of the C2-hydrocarbon products along with hydrogenation of allyl alcohol to 1-propanol. However, in contrast to previous results for allyl alcohol on the Pd(111) surface, there was no evidence for C-O scission reactions of any C3 oxygenate on Pd(110). 1994.

published proceedings

  • SURFACE SCIENCE

altmetric score

  • 6

author list (cited authors)

  • SHEKHAR, R., & BARTEAU, M. A.

citation count

  • 35

complete list of authors

  • SHEKHAR, R||BARTEAU, MA

publication date

  • November 1994