CAREER: Chemically Modified Ternary Chalcogenide Materials

摘要本项目旨在通过离子交换（从一价和二价卤化物盐以及熔融有机酸中）、还原性和氧化性插层/脱层（化学和电化学）以及诱导剥离的新方法，在惰性条件下合成由碱或碱土金属、过渡金属和硫或硒等硫原组成的新材料。这项工作为正在进行的合作提供了素材，以探索这些材料作为光氧化和加氢脱硫催化剂的活性。此外，该项目的一个核心组成部分是开发方法，以提高在本科课程和社区中对固态化学的认识和欣赏。本科生将在当地学校带头举办“家庭科学之夜”，通过互动实验来宣传固体材料的重要性。化学课程也将被修改，以纳入新的设备和资源，突出固态化学的创新。硫基和硒基材料作为催化剂、半导体和光学材料是极其重要的。这些化合物，被称为硫族化合物，具有独特的结构性质，使它们成为化学合成反应物的有趣候选者。我们将利用一系列温和的化学技术，从有趣的起始化合物，如钾镍硫化物（例如K2Ni3S4），寻求可预测地合成新材料的策略。这项工作为正在进行的合作提供了支持，以探索这些材料作为催化剂在环境重要应用中的活性，例如从燃料中去除硫杂质。此外，该项目的一个核心组成部分是开发方法，以提高大学课程和社区对化学的认识和欣赏。本科生将在当地学校带头举办“家庭科学之夜”，通过互动化学实验来提醒孩子们科学是有趣的、迷人的和令人兴奋的。此外，通过与现有的高级探索队项目相结合，将招募当地社区大学中未被充分代表的少数族裔学生在大学环境中开始本科研究。化学课程也将进行修改，以纳入新的设备和资源，突出固体材料研究的创新。

AbstractThis project aims to synthesize new materials consisting of alkali or alkaline earth metals, transition metals, and chalcogens such as sulfur or selenium through ion exchange (from mono- and divalent halide salts as well as molten organic acids), reductive and oxidative intercalation/deintercalation (both chemical and electrochemical), and novel methods that will induce exfoliation, all to be completed under inert conditions. This work feeds into ongoing collaborations to explore the activity of these materials as catalysts for photo-oxidation and hydrodesulfurization. In addition, a central component of this project is the development of methods to increase the awareness and appreciation of solid state chemistry in both the undergraduate curriculum and in the community. Undergraduate students will be employed to spearhead a "family science night" at local schools involving the use of interactive experiments to promote the importance of solid materials. Courses in the chemistry curriculum will additionally be modified to incorporate new equipment and resources highlighting innovations in solid state chemistry.%%%Sulfur and selenium-based materials are extremely important as catalysts, semiconductors, and optical materials. These compounds, known as chalcogenides, have unique structural properties which make them interesting candidates as reactants for chemical synthesis. We will pursue strategies to predictably synthesize new materials from interesting starting compounds, such as potassium-nickel-sulfides (K2Ni3S4, for example) using a catalog of mild chemical techniques. This work feeds into ongoing collaborations to explore the activity of these materials as catalysts for environmentally important applications such as the removal of sulfur impurities from fuels. In addition, a central component of this project is the development of methods to increase the awareness and appreciation of chemistry in both the college curriculum and in the community. Undergraduate students will be employed to spearhead a "family science night" at local schools using interactive chemistry experiments to remind children that science is fun, fascinating, and exciting. Additionally, underrepresented minority students at local community colleges will be recruited to begin undergraduate research at a university setting through a coupling with an existing Senior Discovery Corps program. Courses in the chemistry curriculum will likewise be modified to incorporate new equipment and resources highlighting innovations in solid materials study.