Catalytic Oxidation with Ozone Studied with In Situ Laser Raman Spectroscopy

用原位激光拉曼光谱研究臭氧催化氧化

• 批准号: 9712047
• 负责人: S. Ted Oyama
• 金额: $ 27万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9712047&HistoricalAwards=false
• 关键词: Catalytic; Oxidation; Ozone; Studied; Situ; Catalytic; Oxidation; Ozone; Studied; Situ

Prof. Oyama will continue studying the low-temperature catalytic oxidation of organic compounds with ozone over transition metal oxide catalysts. Oxygenate and aromatic compounds, such as ethanol and toluene, will be oxidized competitively over Mn or Mo oxides supported on zirconia, titania, alumina and silica. The various supports will provide different reductibility - thus electron-accepting capability-to the oxides. The kinetics and mechanism of reactions, and the key steps determining selectivity will be studied by isotopic distribution. The adsorbed intermediates will be investigated by in situ laser Raman spectroscopy. The chemistry of oxidation with ozone will also be studied in separate flow reactor at high flow-rates on other oxides of interest. Oxides of Ti, V, Cr, Fe, Co and Ni, wash-coated on open-cell foam substrate, will be tested in terms of activity for low-temperature catalytic oxidation of VOC model compounds with ozone.

Oyama教授将继续研究有机化合物对过渡金属氧化物催化剂的低温催化氧化。 氧化和芳香族化合物（例如乙醇和甲苯）将在氧化锆，钛，氧化铝和二氧化硅上支撑的Mn或Mo氧化物上竞争氧化。各种支撑物将提供不同的可还原性 - 从而使氧化物具有电子感受能力。反应的动力学和机制以及确定选择性的关键步骤将通过同位素分布研究。 吸附的中间体将通过原位激光拉曼光谱进行研究。 在其他感兴趣的氧化物上，在高流量速率下，在单独的流动反应器中还将研究用臭氧化的化学。 Ti，V，Cr，Fe，Co和Ni的氧化物在开放式泡沫底物上洗涤涂层的氧化物将根据活性的低温催化氧化与臭氧的VOC模型化合物的活性进行测试。