Electron Magnetic Resonance Studies of Transition Metal Ions in Microporous Oxide Materials

微孔氧化物材料中过渡金属离子的电子磁共振研究

• 批准号: 9727394
• 负责人: Larry Kevan
• 金额: $ 47.3万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-15 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727394&HistoricalAwards=false
• 关键词: Electron; Magnetic; Resonance; Studies; Transition

This research project at the University of Houston is supported by the Analytical and Surface Chemistry Program. Professor Kevan and his coworkers use electron magnetic resonance and electron spin echo modulation spectrometry to elucidate the structural environment of transition metal ions in microporous and mesoporous oxide materials. These aluminophosphate (AlPO) and silicoaluminophosphate (SAPO) compounds are important catalytic materials, and the work of this project is directed toward understanding their structure as it relates to catalytic function. Nickel and manganese ions in particular will be examined, and newly synthesized hexagonal phase AlPO and SAPO oxides will be emphasized in these studies. The materials investigated in this work have important applications in petroleum refining, and hydrocarbon process chemistry. The use of electron paramagnetic resonance spectroscopy for the structural elucidation of transition metal ions in oxide materials is the focus of this research project. Nickel and manganese ions incorporated into alumino- and silicoaluminophosphate supports are being examined. Connections between structure and function of these catalytic materials are the expected results of this work, which has important implications for the development of petroleum refining catalysts.

休斯顿大学的这个研究项目得到了分析和表面化学项目的支持。 Kevan教授和他的同事利用电子磁共振和电子自旋回波调制光谱法来阐明微孔和介孔氧化物材料中过渡金属离子的结构环境。 这些磷酸铝 (AlPO) 和磷酸硅铝 (SAPO) 化合物是重要的催化材料，该项目的工作旨在了解它们与催化功能相关的结构。 这些研究将特别检查镍离子和锰离子，并重点研究新合成的六方相 AlPO 和 SAPO 氧化物。 这项工作研究的材料在石油精炼和碳氢化合物加工化学中具有重要的应用。 使用电子顺磁共振波谱来阐明氧化物材料中过渡金属离子的结构是该研究项目的重点。 正在研究掺入铝磷酸盐和硅铝磷酸盐载体中的镍离子和锰离子。 这些催化材料的结构和功能之间的联系是这项工作的预期结果，这对石油炼制催化剂的发展具有重要意义。