Layer Construction within Perovskite Hosts via Consecutive Topochemical Reactions

通过连续拓扑化学反应在钙钛矿主体内构建层

• 批准号: 1005856
• 负责人: John Wiley
• 金额: $ 39万
• 依托单位: University of New Orleans
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1005856&HistoricalAwards=false
• 关键词: Layer; Construction; within; Perovskite; Hosts

TECHNICAL SUMMARY: This project, supported by the Solid State and Materials Chemistry program in the Division of Materials Research will develop low temperature ( 500 degrees C) topochemical synthetic strategies to direct the preparation of new solid-state materials. Combinations of ion exchange, reductive intercalation, and/or oxidative intercalation will be used to build extended arrays within layered oxide hosts. Emphasis will be placed on multistep reaction processing where the sequential application of topochemical methods will lead to new intricately layered products. This program is expected in the long term to contribute to the development of an extensive series of low temperature topochemical reaction strategies where a comprehensive library of reactions can be envisioned that would allow for the directed, rational synthesis of new non-molecular target compounds with specific structural, electronic and magnetic features. With respect to the educational impact, efforts here will focus on the training of students and postdoctoral associates. Participants will gain valuable training in the synthesis and characterization of new materials as well as the presentation and publication of scientific data. A further aspect of this program is the involvement of international students where undergraduate and/or graduate students from France will work in the PI's laboratory; this effort will serve to promote solid-state chemistry at the international level. Finally, to help promote science in the New Orleans area, local high school students will be involved in this research program each summer. NON-TECHNICAL SUMMARY: New methods will be developed that will allow the preparation of new oxide materials. These methods are expected to expand chemists' current capabilities and allow for the effective synthesis of new compounds of technological importance, such as new electronic and/or magnetic materials. This program will also help to train scientists in materials chemistry and general scientific methods. Personnel in this program will include postdoctoral scholars, graduate students, and undergraduates. In terms of international impact, science students from France will work in the PI's lab as part of their training and the PI will continue ongoing collaborative projects with researchers in Japan. Further, to help promote science in the New Orleans area, local high school students will be involved in this research program each summer.

技术概述：该项目由材料研究部固态与材料化学项目支持，将开发低温（500摄氏度）拓扑化学合成策略，以指导新型固态材料的制备。离子交换、还原性嵌入和/或氧化嵌入的组合将用于在层状氧化物宿主内构建扩展阵列。重点将放在多步反应处理，其中顺序应用拓扑化学方法将导致新的复杂层状产品。从长远来看，该计划有望为一系列广泛的低温拓扑化学反应策略的发展做出贡献，在这些策略中，可以设想一个全面的反应库，这将允许有针对性地、合理地合成具有特定结构、电子和磁性特征的新的非分子目标化合物。在教育影响方面，这里的努力将集中在培养学生和博士后助理。与会者将在新材料的合成和表征以及科学数据的介绍和出版方面获得宝贵的培训。该计划的另一个方面是国际学生的参与，来自法国的本科生和/或研究生将在PI的实验室工作；这一努力将有助于在国际一级促进固态化学。最后，为了促进新奥尔良地区的科学发展，当地的高中生每年夏天都会参与到这个研究项目中来。非技术总结：将开发新的方法来制备新的氧化物材料。这些方法有望扩大化学家目前的能力，并允许有效合成具有技术重要性的新化合物，例如新的电子和/或磁性材料。该项目还将有助于培养材料化学和一般科学方法方面的科学家。本项目人员包括博士后、研究生和本科生。在国际影响方面，来自法国的理工科学生将在PI的实验室工作，作为他们培训的一部分，PI将继续与日本的研究人员进行正在进行的合作项目。此外，为了促进新奥尔良地区的科学发展，当地的高中生每年夏天都会参与到这个研究项目中来。