Solid State Chemistry of Complex Chalcogenides

复杂硫属化物的固态化学

• 批准号: 1708254
• 负责人: Mercouri Kanatzidis
• 金额: $ 50万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-01 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1708254&HistoricalAwards=false
• 关键词: Solid; State; Chemistry; Complex; Chalcogenides

PART 1:   NON-TECHNICAL SUMMARYResearch in discovering new solid state materials addresses the grand challenge of moving towards rational materials synthesis that transforms our understanding of materials properties and advances new technologies. This project, which is funded by the Solid State and Materials Chemistry Program in the Division of Materials Research, focuses on discovering and characterizing new types of metal chalcogenide compounds using molten metal salts as solvents. Chalcogenides are used in a broad variety of scientific investigations and technologies. This project studies how important physical properties change as a function of composition and crystal structure of the metal chalcogenide. This leads to exciting new materials, which are expected to spark new applications or enhance the effectiveness of existing technological applications. Thereby new materials impact both the physical sciences as well as economic growth. Furthermore, this project contributes significantly to the training and teaching of graduate students in the field of solid state and materials chemistry and helps to create a future workforce that understands the importance of new materials as drivers for new phenomena and technologies. The project provides important opportunities for graduate and undergraduate students to learn research investigative skills that are needed for successful contemporary scientific research, which in turn has a positive impact on our national competitiveness. PART 2:   TECHNICAL SUMMARYThis project, funded by the Solid State and Materials Chemistry Program in the Division of Materials Research, investigates the class of metal chalcogenides which occupies a vital place in chemistry, physics and materials science. These compounds exhibit remarkably diverse compositions, structures and physical properties which are at the core of many fundamental studies. Specifically, the project investigates (a) study the synthesis of Li containing chalcogenide phases to meet the challenge of incorporating this light alkali ion in a variety of structures; (b) the synthesis of complex alkali chalcophosphates with low-valent phosphorus to observe new bonding motifs and (c) the study of how metal chalcogenide ion-exchangers bind heavy metals. The fields of science and technology impacted by chalcogenides are important and continue to expand. Examples include nonlinear optics, energy conversion, information storage, batteries, topological insulators, catalysis, and superconductivity. The project focuses on ternary and quaternary chalcogenides because they promise very attractive or even unique chemical and physical properties. The main objective of this program is to further develop the ability to control chemical reaction systems by developing the general synthetic strategies that lead to new chalcogenide materials. New horizons in chalcogenide chemistry that pose great challenges are being explored.

第一部分： 非技术总结发现新的固态材料的研究解决了走向合理的材料合成的巨大挑战，改变了我们对材料特性的理解，并推进了新技术。该项目由材料研究部的固态和材料化学计划资助，重点是发现和表征使用熔融金属盐作为溶剂的新型金属硫属化合物。硫属化物广泛用于各种科学研究和技术中。本项目研究了重要的物理性质如何随着金属硫属化物的组成和晶体结构而变化。这导致了令人兴奋的新材料，预计将引发新的应用或提高现有技术应用的有效性。因此，新材料对物理科学和经济增长都有影响。此外，该项目还为固态和材料化学领域的研究生的培训和教学做出了重大贡献，并有助于培养一支了解新材料作为新现象和新技术驱动力的重要性的未来劳动力队伍。该项目为研究生和本科生提供了学习成功的当代科学研究所需的研究调查技能的重要机会，这反过来又对我们的国家竞争力产生了积极影响。第二部分： 本项目由材料研究部的固态和材料化学计划资助，研究在化学，物理和材料科学中占据重要地位的金属硫属化物类。这些化合物表现出非常不同的组成，结构和物理性质，这是许多基础研究的核心。具体而言，该项目调查（a）研究含锂硫族化物相的合成，以应对将这种轻碱金属离子纳入各种结构的挑战;（B）合成具有低价磷的复合碱金属硫磷酸盐，以观察新的键合图案;（c）研究金属硫族化物离子交换剂如何结合重金属。 受硫属化物影响的科学和技术领域很重要，并在继续扩大。 例子包括非线性光学，能量转换，信息存储，电池，拓扑绝缘体，催化和超导。该项目的重点是三元和四元硫属化物，因为它们具有非常吸引人甚至独特的化学和物理性质。该计划的主要目标是通过开发导致新硫属化物材料的一般合成策略来进一步开发控制化学反应系统的能力。硫属化物化学的新视野，提出了巨大的挑战正在探索。

项目成果

Panoramic Synthesis as an Effective Materials Discovery Tool: The System Cs/Sn/P/Se as a Test Case

• DOI: 10.1021/jacs.7b05423
• 发表时间: 2017-08-09
• 期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
• 影响因子: 15
• 作者: Haynes, Alyssa S.;Stoumpos, Constantinos C.;Kanatzidis, Mercouri G.
• 通讯作者: Kanatzidis, Mercouri G.