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Temperature programmed desorption and molecular beam scattering were used to study the adsorption and desorption of small hydrocarbons (n-alkanes, 1-alkenes and 1-alkynes of C1–C4) on rutile TiO2(110). We show that the sticking coefficients for all the hydrocarbons are close to unity (>0.95) at an adsorption temperature of 60K. The desorption energies for hydrocarbons of the same chain length increase...
On 100K rutile TiO 2 (110) surfaces with 3.5±0.5% surface bridge-bonded oxygen vacancies (BBO V ’s), propene formation by dehydration of 2-propanol was monitored by temperature programmed desorption (TPD). The BBO V ’s were either filled or unfilled when the 2-propanol was dosed. Propene desorption rates exhibit two local maxima, nominally at 350 (LT) and 570K (HT). The former...
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