RUI:CAS: Metal Phosphides on Nanostructured Indium Oxide - New Photocatalysts for CO2 Hydrogenation

RUI:CAS：纳米结构氧化铟上的金属磷化物——用于二氧化碳加氢的新型光催化剂

• 批准号: 2101259
• 负责人: Mark Bussell
• 金额: $ 36.65万
• 依托单位: Western Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2101259&HistoricalAwards=false
• 关键词: RUI; CAS; Metal; Phosphides; Nanostructured

With the support of the Chemical Catalysis program in the Division of Chemistry, Mark Bussell and Robert Berger of Western Washington University will study the photothermal catalytic conversion of carbon dioxide. A particularly attractive but scientifically imposing challenge is the photocatalytic conversion of carbon dioxide to fuels such as methanol using sunlight. In this project, a new class of catalytic materials that consists of a visible light-absorbing metal phosphide dispersed on nanostructured indium oxide supports will be developed for the photothermal conversion of carbon dioxide. The catalyst design strategy employs a relatively new area of study within the heterogeneous catalysis community, namely photothermal catalysis, in which light absorption is optimized for the catalytic reaction, and localized heating within catalyst particles optimized for efficient conversion of reactants to products. The experimental investigation will be led by PI Bussell while the computational studies will be led by co-PI Berger. The project will involve undergraduate and M.S. students, and a course-based undergraduate research experience (CURE) investigating the photocatalytic properties of metal oxides will be developed for implementation at a nearby community college.Mark Bussell and Robert Berger of Western Washington University will investigate the photothermal catalytic conversion of carbon dioxide to carbon monoxide via the reverse water-gas shift reaction over metal phosphide-oxide hybrid materials. The photocatalysts to be developed will comprise visible light-absorbing metal phosphides (NixPy, In(x)Ga(1-x)P) dispersed on nanostructured indium oxide supports. The metal phosphides will have distinct and tunable electronic and structural properties, and the two kinds of indium oxide materials to be employed (nanocubes and nanorods) will enable the effects of support morphology to be probed. A range of structural and spectroscopic methods including in situ Raman spectroscopy will be used to characterize the photocatalysts, and the experimental studies will be complemented by density functional theory (DFT) investigations of the electronic and interfacial properties of the metal phosphide-oxide materials. The outcomes of this research will include the development of a new class of earth-abundant photothermal catalysts and an improved fundamental understanding of the roles of the metal phosphide and oxide components in CO2 hydrogenation and related processes.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.

在化学催化计划的支持下，西华盛顿大学的马克·布塞尔（Mark Bussell）和罗伯特·伯杰（Robert Berger）将研究二氧化碳的光热催化转化。一个特别有吸引力但科学上的挑战是二氧化碳向燃料（例如使用阳光）的燃料的光催化转化。 在这个项目中，将开发出一种新的催化材料，该催化材料由分散在纳米结构的氧化粘剂支撑上的可见光金属磷化物组成，以用于二氧化碳的光热转化。 催化剂设计策略在异质催化群落中采用了相对较新的研究领域，即光热催化，其中对催化反应进行了优化的光吸收，并在优化的催化剂颗粒中进行了局部加热，以有效地转化反应剂到产物。 实验研究将由Pi Bussell领导，而计算研究将由Co-Pi Berger领导。 该项目将涉及本科生和硕士。 students, and a course-based undergraduate research experience (CURE) investigating the photocatalytic properties of metal oxides will be developed for implementation at a nearby community college.Mark Bussell and Robert Berger of Western Washington University will investigate the photothermal catalytic conversion of carbon dioxide to carbon monoxide via the reverse water-gas shift reaction over metal phosphide-oxide hybrid materials.要开发的光催化剂将包含可见的光吸收金属磷化物（nixpy，in（x）ga（1-x）p）分散在纳米结构的氧化酰化酰化二颗粒上。 金属磷化物将具有独特且可调的电子和结构特性，并且要使用的两种氧化二氧化物材料（纳米接管和纳米棒）将使支持形态的影响能够探测。 一系列结构和光谱法（包括原位拉曼光谱法）将用于表征光催化剂，实验研究将由金属磷化物 - 氧化物材料的电子和界面的密度功能理论（DFT）研究补充。这项研究的结果将包括开发一类新的地球光热催化剂，以及对金属磷化物和氧化物成分在CO2氢和相关过程中的作用的基本理解，这奖反映了NSF的法定任务，并通过使用基础的智力效果和广泛的范围来评估支持，并通过评估了支持。