Abstract
The adsorption of methanol on TiC(100) and (111) surfaces has been studied using ultraviolet photoelectron spectroscopy (UPS). Methanol is adsorbed molecularly on the neutral TiC(100) surface at room temperature. It is shown by UPS study that the molecular orbitals localized to the oxygen atom are selectively stabilized through adsorption, indicating that the methanol molecule is bonded to the TiC(100) surface via the oxygen atom. On the other hand, methanol is adsorbed dissociatively on the polar TiC(111) surface; methoxy species and completely dissociated atomic species (C, H and O atoms) are coexistent on the TiC(111) surface after methanol adsorption at room temperature.
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