GOALI: Collaborative Research: Understanding Perovskite-Based NO Oxidation Catalysts via Coupled Experimental and Computational Analysis

0967466爱普生在过量空气中进行稀薄燃烧过程的系统提供了显著的燃油效率优势，有助于减少温室气体（GHG）排放。然而，稀燃的重要副产物是NOx（x = 1，2）。虽然已经证明了具有成本效益的技术可用于修复固定来源产生的NOx，但对包括柴油动力车辆在内的移动的来源产生的NOx进行后处理的解决方案仍然是一个重大挑战。最重要的方面之一是含铂催化剂是用于该操作的最有效的催化剂，并且所需的铂量使得这些催化剂过于昂贵。在这项提议中，要求密歇根大学的PI汤普森和圣母大学的施耐德之间进行合作，增加了一个工业合作伙伴通用汽车公司，使其成为一个GOALI提议和一个协作提议。其目的是解决为什么用通用汽车科学家最初观察到的含有钙钛矿的非贵金属催化剂观察到与铂相同量级的催化活性，并确定是否可以证明坚固，廉价的催化剂实际上可以取代铂。这将是我们对铂催化反应的理解的重大变化，并且在更实际的层面上，将开辟柴油动力车辆领域，提高效率并减少温室气体排放，因为可以使用更便宜的催化后处理或消声器。该计划涉及两所大学和工业合作伙伴在许多接触点和工作的各个阶段。学生将受益于合作和与行业的接触。此外，PI将利用校园内现有的教育和推广计划，使社会对该问题感兴趣，并从该项目的成功中获益。

0967466ThompsonSystems where lean combustion processes are carried out in excess air offer significant fuel efficiency benefits that can contribute to reductions of greenhouse gas (GHG) emissions. However, an important byproduct of lean combustion is NOx (x = 1, 2). While cost-effective technologies have been demonstrated for the remediation of NOx produced at stationary sources, solutions for the aftertreatment of NOx produced by mobile sources including diesel powered vehicles remains a major challenge. One of the most significant aspects is that Platinum-containing catalysts are the most effective catalysts for this operation, and the amount of platinum required makes these catalysts prohibitively expensive. In this proposal which calls for collaboration between PIs Thompson from University of Michigan and Schneider from University of Notre Dame, an industrial partner, General Motors, is added to make it a GOALI proposal as well as a Collaborative one. The intent is to resolve why catalytic activity of about the same magnitude as platinum has been observed with a non-precious metal containing perovskite catalyst originally observed by General Motors scientists, and to determine if rugged, inexpensive catalysts can be demonstrated which could in fact replace platinum. This would be a significant change in our understanding of reactions that are catalyzed by platinum, and on a more practical level, would open up the area of diesel-powered vehicles with the improved efficiencies and reduced GHG emissions expected, as less-expensive catalytic after-treatments or mufflers could be available. The program involves the two universities and the industrial partner at many points of contact and in various phases of the work. Students will benefit from the collaboration and from the contact with industry. In addition the PIs will leverage existing education and outreach programs on the campuses to both interest and educate society about the issue and benefits from success in the project.