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

贫燃发动机排气中的CO和碳氢化合物的处理仍然是影响这些提高效率的汽车的部署的挑战。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。基于贵金属的低温后处理催化剂仍然是处理污染物的最佳选择。这种情况的经济性决定了更活性和更稳定的催化剂，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。根据观察，钯将防止挥发性铂氧化物的排放，在新墨西哥州大学，这两个monoclonal催化剂的物理混合物将给出在通用汽车实验室，来自新墨西哥州大学的Abhaya Datye教授，来自新墨西哥州州立大学的Boris基弗教授和科学家Michael Balogh，来自通用汽车实验室的Chang Kim和Wei Li正在合作了解钯对铂稳定性的协同效应以及从独立颗粒自组装催化剂的能力。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，以阐明从这些观测中产生的问题的答案。通过表征和计算开发的基本理解可能会为低温氧化的低成本催化剂打开一扇窗户，这些催化剂可能会超出污染物一氧化碳和碳氢化合物。更广泛的影响是显而易见的，在这方面的科学最终导致潜在的成本降低后发动机燃烧催化处理。有效降低污染治理成本，可实现更好的整体空气质量。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，这将优化结果和结果的效用。参与的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。他们将在参加该计划后得到全面发展。

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.