Layer Construction within Perovskite Hosts via Consecutive Topochemical Reactions

技术概述：该项目在材料研究部固态和材料化学计划的支持下，将开发低温(500摄氏度)拓扑化学合成策略，以指导新固态材料的制备。离子交换、还原插层和/或氧化插层的组合将用于在层状氧化物主体内构建扩展阵列。重点将放在多步骤反应处理上，其中拓扑化学方法的顺序应用将导致新的错综复杂的层状产品。从长远来看，这一计划预计将有助于开发一系列广泛的低温拓扑化学反应策略，其中可以设想一个全面的反应库，允许直接、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学生和博士后助理的培训上。参加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吸引国际学生的参与，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层面上促进固体化学。最后，为了帮助促进新奥尔良地区的科学，当地的高中生将在每年夏天参与这个研究项目。非技术总结：将开发新的方法，使新的氧化物材料的制备成为可能。这些方法有望扩大化学家目前的能力，并允许有效地合成具有技术重要性的新化合物，如新的电子和/或磁性材料。该计划还将帮助培训科学家在材料化学和一般科学方法。该项目的人员将包括博士后学者、研究生和本科生。在国际影响方面，来自法国的理科学生将在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合作项目。此外，为了帮助促进新奥尔良地区的科学，当地的高中生将在每年夏天参与这项研究计划。

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.