冲击波处理的结晶MgO的ESR波谱及用于丙烷脱氢反应的研究

Study on ESR Spectra of Crystal MgO Treated by Shock Wave and Its Activity of Dehydrogenation of Propane

ESR研究表明结晶氧化镁经冲击波处理后可产生大量晶格缺陷,并形成F心。用冲击处理后的结晶MgO作丙烷脱氢反应催化剂,丙烷的转化率、丙烯的产率及选择性均有一些提高.初步讨论了可能的结构模型和催化机理.

After being treated by shock wave, the defects increased and F color centers formed on crystal MgO were detected by ESR technique. Plausible chemisorption mechanism of F color centers were proposed. Using crystal MgO catalyst treated by shock wave, higher productivity and selectivity of propy-lene were obtained.