Solid State Oxides and Oxyfluorides

固态氧化物和氟氧化物

• 批准号: 9727516
• 负责人: Kenneth Poeppelmeier
• 金额: $ 36.35万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-15 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727516&HistoricalAwards=false
• 关键词: Solid; State; Oxides; Oxyfluorides

9727516 Poeppelmeier The preparation of new materials is one of the most challenging problems in modern solid-state chemistry. The research objective over the period of the next three years is to synthesize a large number of mixed metal oxyfluorides prepared from (hydrogen fluoride) x pyridine/pyridine/water solution (150 degrees centigrade, autoclave autogenous pressure) using metal oxides as reagents. The "composition space" approach will establish individual regions of stability (crystallization fields) and enable the selective crystallization of different phases within each system studied. Structures are expected which range from polynuclear clusters to one dimensional chains, two-dimensional layers and three dimensional frameworks. The hydrolytic chemistry of multi-cation precursors, templating methodology, and pH controlled oxolation (polyanions) and olation (polycations) reaction chemistry under study will advance our understanding of inorganic chemistry. %%% The design of inorganic solids is the important step in the development of materials that enhance our living standards. Research is proposed to develop new methodologies for inorganic chemistry leading to more complex inorganic solids compared to those that are presently available for use in computers, automobiles and as catalysts in the chemical and petroleum industry. ***

新材料的制备是现代固体化学中最具挑战性的问题之一。未来三年的研究目标是以金属氧化物为试剂，合成大量由（氟化氢）x吡啶/吡啶/水溶液（150℃，高压釜自压）制备的混合金属氟氧化物。“成分空间”方法将建立单独的稳定区域（结晶场），并使所研究的每个系统中不同相的选择性结晶成为可能。期望的结构范围从多核簇到一维链、二维层和三维框架。多阳离子前驱体的水解化学，模板方法，以及pH控制的醇化（聚阴离子）和醇化（聚阳离子）反应化学的研究将促进我们对无机化学的理解。无机固体材料的设计是提高我们生活水平的材料发展的重要一步。与目前用于计算机、汽车以及化学和石油工业中作为催化剂的无机固体相比，建议研究开发无机化学的新方法，从而产生更复杂的无机固体。＊＊＊