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- W2029720259 abstract "PtAl2O3 and PtPbAl2O3 catalysts have been investigated by infrared (ir) spectroscopy of adsorbed carbon monoxide and selectivity for cyclohexane conversion. Addition of lead to PtAl2O3 catalysts decreases the frequency of the CO stretching vibration from adsorbed CO and affects the dependence of the respective band intensities upon the CO surface coverage. In catalysis the addition of lead to PtAl2O3 strongly suppresses fragmentation and deactivation in the cyclohexane conversion. The spectroscopic results are consistent with an s-electron transfer from lead to platinum. This modification of platinum has catalytic consequences. Especially the hydrogenolysis of cyclohexane is inhibited. The ir and catalytic data are consistent with the conclusion that alumina-supported PtPb catalysts exhibit both the ligand and ensemble effects." @default.
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- W2029720259 date "1981-09-01" @default.
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- W2029720259 title "Infrared spectra of adsorbed CO and catalytic conversion of cyclohexane on Pt/Al2O3 and Pt$z.sbnd;Pb/Al2O3 catalysts" @default.
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- W2029720259 doi "https://doi.org/10.1016/0021-9517(81)90195-0" @default.
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