GOALI: Understanding Self-Assembly of Noble Metal Alloys for Ultra Low Temperature Oxidation Catalysis

GOALI：了解用于超低温氧化催化的贵金属合金的自组装

• 批准号: 1067803
• 负责人: Abhaya Datye
• 金额: $ 35万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-15 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1067803&HistoricalAwards=false
• 关键词: GOALI; Understanding; Self; Assembly; Noble

1067803DatyeThe treatment of CO and hydrocarbons in the exhaust of lean-burn engines continues as a challenge impacting the deployment of these improved efficiency automobiles. This will likely be aggravated as the use of biodiesel and other alternative fuel components enter the pool. Low temperature after-treatment catalysts based on noble metals are still the best choice for dealing with the pollutants. The economics of the situation dictate that more active and stable catalysts, particularly those using less noble metal contents, are highly desirable R and D targets. This GOALI proposal combines efforts from 2 universities and an automotive industry lab to address this problem. Based on observations that Palladium will prevent the emission of volatile Platinum oxides made at the University of New Mexico, and that a physical mixture of these two monometallic catalysts will give results of bimetallic catalytic nature made at the General Motors Labs, a team of Prof. Abhaya Datye from the University of New Mexico, Prof. Boris Kiefer from New Mexico State University, and Scientists Michael Balogh, Chang Kim and Wei Li from General Motors Laboratory are collaborating to understand the synergistic effects of palladium for platinum stability and for the ability to self-assemble a bimetallic catalyst from independent particles. A wide variety of ex situ and in situ techniques will be coupled with state-of-the-art computational DFT simulation to elucidate the answers to the questions that arise from these observations. The fundamental understanding developed through characterization and computation will potentially open a window on less-costly catalysts for low temperature oxidations which may extend beyond the pollutants Carbon monoxide and hydrocarbons. The broader impact is apparent in terms of this science ultimately leading to potential cost reduction in post engine burn catalytic treatments. Effective lowering of the cost for pollution treatments allows the attainment of better quality air overall. There seems to be an effective interaction between the universities and GM Laboratory scientists that will optimize the outcome and utility of the results. The students involved will be exposed to the industrial environment, the academic environment, and the impact of the environment on the technologies that humans employ. They will be well-rounded after participation in this program.

1067803 datye稀燃发动机废气中的一氧化碳和碳氢化合物的处理仍然是影响这些提高效率汽车部署的一个挑战。随着生物柴油和其他替代燃料成分的使用，这种情况可能会加剧。以贵金属为基材的低温后处理催化剂仍是处理污染物的最佳选择。经济形势决定了更活跃和稳定的催化剂，特别是那些使用较少贵金属含量的催化剂，是非常理想的研发目标。这个GOALI提案结合了两所大学和一个汽车工业实验室的努力来解决这个问题。新墨西哥大学的Abhaya Datye教授、新墨西哥州立大学的Boris Kiefer教授和科学家Michael Balogh观察到钯可以防止新墨西哥大学制造的挥发性铂氧化物的排放，并且这两种单金属催化剂的物理混合物将产生通用汽车实验室制造的双金属催化性质的结果。来自通用汽车实验室的Chang Kim和Wei Li正在合作研究钯对铂稳定性的协同效应，以及由独立粒子自组装双金属催化剂的能力。各种各样的非原位和原位技术将与最先进的计算DFT模拟相结合，以阐明从这些观察中产生的问题的答案。通过表征和计算得到的基本理解将有可能为低成本的低温氧化催化剂打开一扇窗，这种催化剂可能超出一氧化碳和碳氢化合物的污染范围。就这门科学而言，其更广泛的影响是显而易见的，最终导致发动机燃烧后催化处理的潜在成本降低。有效降低污染处理的成本，可使整体空气质素得到改善。大学和转基因实验室的科学家之间似乎有一种有效的互动，将优化结果和结果的效用。学生将接触到工业环境，学术环境，以及环境对人类使用的技术的影响。参加这个项目后，他们将全面发展。