MRI: Acquisition of Differential Electrochemical Mass Spectrometry for Investigation of Different Electrochemical Reaction Kinetics on Nanostructured Catalysts

该奖项来自主要研究仪器（MRI）项目，用于研究重要的电化学反应机制，如二氧化碳的电化学转化和新兴纳米催化剂上不饱和生物燃料的电化学加氢。结合先进的气相色谱系统，该仪器加强了少数民族服务机构伊丽莎白城市州立大学（ECSU）的产品分析设施。它还支持在电化学、纳米催化剂和可再生能源存储系统等最先进的研究领域为ECSU未被充分代表的少数民族学生提供研究培训和教育。该系统促进了与国内和国际合作者的几个研究项目。就地区而言，来自Old Dominion University （ODU）和Eastern Carolina University （ECU）的两名教员和众多学生在合作项目中工作，将直接受益于该设施。该合同为ECSU的研究和教育提供了差分电化学质谱（DEMS）系统，该系统由微流毛细管入口组成。利用dem对电化学反应中间体和产物进行实时分析是确定多种电化学反应机理的核心，为开发高效纳米催化剂提供基础知识。在一个项目中，研究重点是了解二氧化碳在二维过渡金属二硫化物纳米片晶界或边缘原子上的电化学还原机制。该项目进一步促进了由非均质晶界组成的高效催化系统的发展，以有效地将二氧化碳转化为有价值的产品。在ODU的另一个项目中，该仪器解决了电化学氢化如何在还原金属氧化物纳米结构上发生的问题，以帮助设计更节能和更具成本效益的催化系统，将生物油转化为运输燃料。所获得的知识将广泛受益于纳米催化剂、可再生能源存储系统和生物燃料生产等领域。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This award from the Major Research Instrumentation (MRI) program enables the study of important electrochemical reaction mechanisms, such as, carbon dioxide electrochemical conversion and electrochemical hydrogenation of unsaturated biofuels on emerging nanocatalysts. In combination with advanced gas chromatography system, this instrument strengthens the product analysis facility at a minority-serving institution, Elizabeth City State University (ECSU). It also supports both research training and education of underrepresented minority students at ECSU in state-of-the-art research areas such as electrochemistry, nanocatalysts and renewable energy storage systems. This system facilitates several research projects with both domestic and international collaborators. Regionally, two faculty members and numerous students from Old Dominion University (ODU) and Eastern Carolina University (ECU) working on collaborative projects will directly benefit from this facility. The award supports the acquisition of a Differential Electrochemical Mass Spectrometry (DEMS) system consisting of microflow capillary inlets for research and education at ECSU. The real time electrochemical reaction intermediates and products analysis by DEMS is at the center of identifying reaction mechanism of several electrochemical reactions and providing fundamental knowledge for the development of efficient nanocatalysts. In one project, research focuses on understanding of carbon dioxide electrochemical reduction mechanism on grain-boundaries or edge atoms of two-dimensional transition metal dichalcogenide nanosheets. This project further enables the development of an efficient catalytic system consisting of heterogeneous grain-boundaries for efficient carbon dioxide conversion into valuable products. In another project with ODU, this instrument addresses the question of how electrochemical hydrogenation occurs on reduced metal oxide nanostructures to help designing more energy-efficient and cost-effective catalytic system for conversion of bio-oils into transportation fuels. The gained knowledge will broadly benefit areas related to nanocatalysts, renewable energy storage systems and biofuel production.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.