GOALI : 21st century Pd-based three-way catalysts: Controlling structure-activity relationships through the understanding of aging dynamics and in-situ regeneration

目标：21世纪钯基三效催化剂：通过了解老化动力学和原位再生来控制结构-活性关系

• 批准号: 1159279
• 负责人: Johannes Schwank
• 金额: $ 32万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1159279&HistoricalAwards=false
• 关键词: GOALI; 21st; century; Pd; based

Abstract#1159279Schwank, JohannesIt is well-known that catalytic emission control strategies for vehicles exact a toll on vehicle fuel economy. With the requirements to drastically increase the corporate average fuel economy, such fuel economy penalties will no longer be acceptable, and a new approach to gasoline vehicle emission control catalysis is needed. This GOALI proposal brings together a team of researchers from academia and industry in a quest to arrive at a detailed understanding how new fuel economy-enabling powertrain technologies such as gasoline-electric hybrids, engine start-stop features, down-sized turbocharged engines with direct injection, and use of reformulated gasoline or E-85 impacts the function and deactivation modes of existing three-way Pd catalyst materials. The proposal will also address methods for curtailing and, ideally even reversing catalyst deactivation on the vehicle during actual operation. Traditionally, catalyst deactivation has only been looked at from a post mortem perspective. There is a dearth of investigations of the time-dependent changes occurring in emission control catalysts when exposed to emissions from engines operating under various exhaust gas environments and temperature regimes. Professor Johannes Schwank, Adjunct Professor Galen Fisher, and Dr. Xiaoyin Chen at the University of Michigan will closely collaborate with Dr. Robert McCabe at Ford Motor Company to utilize sophisticated probe reaction analysis and characterization techniques to elucidate the complete evolution of the Pd catalyst from its initial to final states, with the goal of identifying opportunities to modify the engine operation in ways that either mitigate catalyst deactivation or reverse deactivation processes. The hypothesis is that different aging protocols lead to different outcomes in catalyst structure and performance. This hypothesis will be tested by a comprehensive catalyst characterization effort at different stages of aging. In terms of broader impact, this research will aid the design of future automotive emission control technologies, while also improving the performance and durability of existing automotive exhaust catalyst technologies. The results will assist in developing methods to track the aging process on the vehicle and either avoid severe aging modes or actively intervene at various points to preserve or regenerate the catalyst. Given the close proximity of the two institutions, the project will provide opportunities for Ford researchers to participate in experiments at UM, and UM faculty and students to experience working in an industrial research laboratory at Ford, thereby giving the students an educational experience that goes beyond typical academic settings.

摘要#1159279Schwank, Johannes 众所周知，车辆催化排放控制策略会影响车辆燃油经济性。 随着大幅提高企业平均燃油经济性的要求，这种燃油经济性处罚将不再被接受，需要一种新的汽油车排放控制催化方法。这项 GOALI 提案汇集了来自学术界和工业界的研究人员团队，旨在详细了解新的燃油经济性动力总成技术（例如油电混合动力、发动机启停功能、小型涡轮增压发动机与直接重新配制的汽油或 E-85 的喷射和使用会影响现有三效钯催化剂材料的功能和失活模式。该提案还将提出在实际运行过程中减少甚至逆转车辆催化剂失活的方法。传统上，催化剂失活只能从事后的角度来看待。当暴露于在各种废气环境和温度条件下运行的发动机的排放物时，排放控制催化剂中发生的随时间变化的研究缺乏。密歇根大学的 Johannes Schwank 教授、Galen Fisher 兼职教授和陈晓银博士将与福特汽车公司的 Robert McCabe 博士密切合作，利用复杂的探针反应分析和表征技术来阐明 Pd 催化剂从其初始状态到最终状态，目的是确定以减轻催化剂失活或逆转失活过程的方式修改发动机运行的机会。假设不同的老化方案会导致催化剂结构和性能的不同结果。这一假设将通过不同老化阶段的全面催化剂表征工作进行检验。就更广泛的影响而言，这项研究将有助于未来汽车排放控制技术的设计，同时还能提高现有汽车尾气催化剂技术的性能和耐用性。研究结果将有助于开发跟踪车辆老化过程的方法，并避免严重的老化模式或在各个点积极干预以保存或再生催化剂。鉴于两所机构距离很近，该项目将为福特研究人员提供参与密歇根大学实验的机会，并为密歇根大学的教职员工和学生提供在福特工业研究实验室工作的机会，从而为学生提供超越以往的教育体验。典型的学术环境。