Dynamic Behavior and Decomposition Property of MethanolAdsorbed on a Pt/TiO2(110) Model Catalyst Surface

摘要

Observing the behavior of adsorbed molecules on oxide-supported meal catalysts is ofgreat significance to understand the origin of catalytic activity and selectivity.Herein,westudied how methanol molecules adsorb,diffuse,and decompose on a Pt nanoparticles onTiO2(110)(Pt NPs/TiO2(110) model catalyst surface by ultrahigh vacuum (UHV) scanningtunneling microscope (STM),temperature programmed desorption (TPD) and densityfunctional theory (DFT) calculation.In our previous studies,the methanol can be adsorbed and diffused along [001]direction as methoxy species on the TiO2 (110) surface onlywhen Pt NPs are present.1 In this study,we have obtained twonew results.