Structure and reaction pathways of methyl lactate on Pd(1 1 1) |
| |
Authors: | Luke Burkholder Wilfred T Tysoe |
| |
Institution: | aDepartment of Chemistry and Biochemistry, and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA |
| |
Abstract: | The adsorption and reaction of methyl lactate (CH3CH(OH)COOCH3) is studied in ultrahigh vacuum on a Pd(1 1 1) surface using temperature-programmed desorption (TPD) and reflection–absorption infrared spectroscopy (RAIRS). Methyl lactate reacts at relatively low temperatures ( 220 K) by O–H bond scission. This intermediate can either react with hydrogen to reform methyl lactate at 280–300 K or undergo β-hydride elimination to form flat-lying methyl pyruvate. This decomposes to form acetyl and methoxy carbonyl species as found previously following methyl pyruvate adsorption on Pd(1 1 1). These species predominantly react to form carbon monoxide, methane and hydrogen. |
| |
Keywords: | Temperature-programmed desorption Infrared spectroscopy Chemisorption Pd(1  1  1) Methyl lactate |
本文献已被 ScienceDirect 等数据库收录! |