[[alternative]]Adsorption and Thermal Decomposition of Alkly Alcohol on Cu(110) Surface

[[abstract]]Adsorption and thermal reactions of alcohol (ROH；R= (CH)n ,n=1~ 4) on the Cu(110) have been studied by temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) under ultra-high vacuum system. Desorption profiles of evolved gases from the surface of the Cu(110) were detected by quardrupole mass in the system of the TPD. Intermediate species adsorbed on surface were characterized with XPS using synchrotron radiation. The chemistry of short chain alcohols on Cu surface has been studies extensively that as a result of their importance in catalytic chemistry. Previous studty of alcohols on clean Cu surfaces that can deprotonate the alcohol and produce alkoxide intermediate on the surface. In partpcular, on the clean Cu surface on which alcohols are adsorbed reversibly. The molecular desportion measurements found that the heats of adsorption of the alcohols increased with increasing chain length. While decomposition of alcohols led to H2 and aldehyde on the surface. It has been proposed that these latter reactions proceed by alkylidyne intermediates led to carbon desposition on the surface.