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

0967434施耐德系统在过量空气中进行精益燃烧过程，可显著提高燃油效率，有助于减少温室气体（GHG）排放。然而，稀薄燃烧的一个重要副产品是NOx （x = 1,2）。虽然已经证明了具有成本效益的技术可用于固定源产生的氮氧化物的修复，但包括柴油动力车辆在内的移动源产生的氮氧化物后处理的解决方案仍然是一个主要挑战。最重要的一个方面是，含铂催化剂是该操作中最有效的催化剂，所需的铂量使这些催化剂昂贵得令人望而却步。在这个要求密歇根大学的pi Thompson和圣母大学的Schneider合作的提案中，一个工业合作伙伴，通用汽车，被添加到一个GOALI提案中，同时也是一个合作提案。这项研究的目的是为了解决为什么一种含有钙钛矿的非贵金属催化剂的催化活性与铂的催化活性大致相同，这种催化剂最初是由通用汽车公司的科学家观察到的，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改变，在更实际的层面上，将开辟柴油动力汽车的领域，提高效率，减少温室气体排放，因为更便宜的催化后处理或消声器可以使用。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。学生将从合作和与行业的接触中受益。此外，项目负责人将利用校园内现有的教育和推广项目，让社会对这个问题产生兴趣，并从项目的成功中获益。

0967434SchneiderSystems 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.