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EAGER: Discovery of Next Generation Durable Non-toxic Inorganic Red Pigments

EAGER：发现下一代耐用无毒无机红色颜料

基本信息

批准号：
2025615
负责人：
Mas Subramanian
金额：
$ 20万
依托单位：
Oregon State University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-06-01 至 2025-05-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2025615&HistoricalAwards=false
关键词：
EAGER Discovery Next Generation Durable

项目摘要

PART 1. NON-TECHNICALColors play a vital role in our lives and how we respond to surroundings. Inorganic color pigments are used to generate colors in paints, glass, ceramics and plastics. However, the world has never had a truly safe durable inorganic red pigment. Currenty known inorganic red pigments contain toxic metals such as cadmium, mercury or lead. Driven by environmental laws, these red pigments have to be replaced and discovering a safe durable bright red pigment is the holy grail of colorant producing companies. The central theme of this materials chemistry project, which is supported by the Solid State and Materials Chemistry program in the Division of Materials Research at NSF, is the discovery of next generation durable non-toxic bright red inorganic pigments based on transition metal oxides and it’s derivatives that can be used in artist colors, industrial paints and other coating technologies. This project significantly contributes to education and research training for graduate and undergraduate students in the field of solid state materials chemistry. High school students participating in the project gain valuable hands-on research experience and learn the pathways to advanced education and career in STEM disciplines. New materials are drivers of new phenomena and technologies. Designing new materials with superior color properties is a scientific grand challenge, the pursuit of which will provide the basis for new color technologies and revolutionize our society. PART 2. TECHNICAL SUMMARYThis exploratory research, supported by the Solid State and Materials Chemistry program in the Division of Materials Research at NSF, is aimed at the discovery of new stable bright red inorganic materials that can be used as red color pigments. The focus is on the discovery of complex inorganic materials with unusual structural features. The common coordinations for transition metal cations in inorganic functional materials are tetrahedral and octahedral. Transition metal oxides with cations in trigonal bipyramidal coordination are rare but recently known to produce brilliantly colored blue oxides of considerable scientific and commercial interests as pigments; e.g. YInMn blue. By understanding the crystal structure-optical property relationships for trigonal bipyramidal cations in various complex inorganic oxides, the researchers design new transition metal oxides with red producing chromophores (e.g. chromium) that can be developed into commercially viable red pigments. This project also explores novel mixed oxides, oxyfluorides and oxysulfides with cations containing lone-pair electrons where there is a tin 5s or bismuth 6s band located above the oxygen 2p band and the resulting bandgap are tuned to produce compounds with brilliant yellow, orange and red colors leading to next generation pigments. Designing new materials with superior color properties is a scientific grand challenge, the pursuit of which will provide the basis for new color technologies and revolutionize our society. This project significantly contributes to education and research training for graduate and undergraduate students in the field of solid state materials chemistry. High school students participate in this project as summer interns and gain valuable hands-on research experience and learn the pathways to advanced education and career in STEM disciplines.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

部分1.色彩在我们的生活以及我们对周围环境的反应中起着至关重要的作用。无机彩色颜料用于在油漆、玻璃、陶瓷和塑料中产生颜色。然而，世界上从未有过真正安全耐用的无机红颜料。目前已知的无机红色颜料含有有毒金属，例如镉、汞或铅。在环保法的推动下，这些红色颜料必须被替换，发现一种安全耐用的鲜红色颜料是着色剂生产公司的圣杯。该材料化学项目由NSF材料研究部的固态和材料化学项目支持，其中心主题是发现基于过渡金属氧化物及其衍生物的下一代耐用无毒亮红色无机颜料，可用于艺术家的颜色，工业油漆和其他涂料技术。该项目为固态材料化学领域的研究生和本科生的教育和研究培训做出了重大贡献。参与该项目的高中生获得了宝贵的实践研究经验，并学习了STEM学科的高等教育和职业道路。新材料是新现象和新技术的驱动力。设计具有上级色彩特性的新材料是一项重大的科学挑战，对它的追求将为新的色彩技术提供基础，并使我们的社会发生革命性的变化。部分2.这项探索性研究由NSF材料研究部的固态和材料化学计划支持，旨在发现可用作红色颜料的新型稳定的鲜红色无机材料。重点是发现具有不寻常结构特征的复杂无机材料。过渡金属阳离子在无机功能材料中常见的配位形式有四面体和八面体。具有三角双锥配位阳离子的过渡金属氧化物是罕见的，但最近已知产生具有相当大的科学和商业利益的颜料的鲜艳的蓝色氧化物;例如YInMn蓝。通过了解各种复杂无机氧化物中三角双锥阳离子的晶体结构-光学性质关系，研究人员设计了具有红色发色团（例如铬）的新型过渡金属氧化物，可以开发成商业上可行的红色颜料。该项目还探索了新型混合氧化物、氟氧化物和硫氧化物，其阳离子含有孤对电子，其中锡5s或铋6s带位于氧2 p带上方，并且由此产生的带隙被调整以产生具有亮黄色、橙子和红色的化合物，从而产生下一代颜料。设计具有上级色彩特性的新材料是一项重大的科学挑战，对它的追求将为新的色彩技术提供基础，并使我们的社会发生革命性的变化。该项目为固态材料化学领域的研究生和本科生的教育和研究培训做出了重大贡献。高中生作为暑期实习生参加该项目，获得宝贵的实践研究经验，并学习STEM学科的高等教育和职业道路。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。