摘要
用超高真空程序升温反应谱和瞬时应答方法研究了乙二醇在电解银表面的氧化．实验表明，室温下乙二醇吸附在电解银表面，并在３４３Ｋ分解给出一组产物群．预吸附氧与乙二醇反应时，在３４３Ｋ，４３３Ｋ和６１２Ｋ处给出三组产物群，它们分别对应于不同的表面反应．并给出了电解银催化乙二醇制乙二醛的活性结果．
he oxidation of glycol on electrolytic silver catalyst has been studied by using ultrahigh vacuum temperature-programmed-reaction troscopy (TPRS) and transient response method. It was found that glycol could be adsorbed on the surface of electrolytic silver at room temperature and gave a group of products at 343 K. Reaction of glycol with preadsorbed oxygen gives three groups of product at 343, 433 and 612K, respectively. The catalytic activity and selectivity of electrolytic silver for this reaction have been measured. Based on the experimental results, a reaction mechanism was proposed.
基金
国家自然科学基金
关键词
乙二醇
氧化
电解银催化剂
glycol, catalytic oxidation, electrolytic silver catalyst
