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1部分：发现新的固态材料的非技术摘要研究解决了朝着理性材料综合的巨大挑战，这改变了我们对材料属性和进步新技术的理解。该项目由材料研究部的固态和材料化学计划资助，重点是发现和表征新型的金属金属奶油蛋白酶化合物，并使用熔融金属盐进行了解决。墨西哥葡萄糖剂用于广泛的科学研究和技术。该项目研究了重要的物理特性如何随着金属硫代基因的组成和晶体结构的函数而变化。这导致令人兴奋的新材料，预计将引发新的应用程序或增强现有技术应用的有效性。因此，新材料会影响物理科学和经济学。生长。此外，该项目对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，并有助于创造一个未来的劳动力，以了解新材料作为新现象和技术的驱动因素的重要性。该项目为研究生和本科生提供了重要的机会，可以学习成功的当代科学研究所需的研究调查技能，这反过来又对我们的国家竞争力产生了积极的影响。第2部分：由材料研究部固态和材料化学计划资助的技术摘要项目研究了金属硫化盐的类别，该类别在化学，物理和材料科学中占据了至关重要的位置。这些化合物表现出非常多样化的组成，结构和物理特性，这是许多基本研究的核心。具体而言，该项目研究（a）研究了含有硫代基因剂相的LI的合成，以应对将这种光碱性离子纳入各种结构的挑战。 （b）复杂的碱性硫磷酸盐与低价磷的合成，以观察新的键合基序，以及（c）研究金属硫酸基因硫酸基因离子 - ex exchangers如何结合重金属的研究。受墨西哥葡萄染色体影响的科学和技术领域很重要，并继续扩展。示例包括非线性光学元件，能量转换，信息存储，电池，拓扑绝缘子，催化剂和超导性。该项目的重点是三元和第四纪硫化盐，因为它们承诺具有非常有吸引力甚至独特的化学和物理特性。该计划的主要目的是通过开发导致新的硫族化材料的一般合成策略来进一步发展控制化学反应系统的能力。正在探索葡萄干剂化学中的新视野，这些化学构成了巨大的挑战。

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.