| 项目编号: | 1703439
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| 项目名称: | Collaborative Research: SusChEM: Mechanistic origins of synergetic effects in plasma catalysis |
| 作者: | Peter Bruggeman
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| 承担单位: | University of Minnesota-Twin Cities
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| 批准年: | 2017
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| 开始日期: | 2017-08-01
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| 结束日期: | 2020-07-31
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| 资助金额: | 200000
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | catalyst
; synergistic effect
; plasma-catalyst
; plasma
; plasma-catalysis
; well-characterized atmospheric-pressure plasma source
; collaborative research project
; microscopic origin
; plasma-surface interaction condition
; plasma-catalyst synergy
; potential plasma activation
; plasma condition
; plasma-catalyst interaction
; plasma-catalyst system
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| 英文摘要: | 1703211 / 1703439
PI: Oehrlein, Gottlieb S. / Bruggeman, Peter J.
Institution: University of Maryland College Park / University of Minnesota-Twin Cities
The proposed collaborative research project aims at using a well-characterized atmospheric-pressure plasma source to enable well-controlled interactions of the plasma with earth-abundant catalysts. The activations of catalysts using plasmas holds great promise for increasing the efficiency of catalytic systems with potential applications in a broad spectrum industries, including chemical and materials synthesis, environmental remediation, and energy generation. The overriding goal of the proposed project is to investigate the underlying mechanisms that are responsible for the synergistic effects of plasma with catalysts. The plan is to correlate the magnitude of the plasma catalytic synergistic effect(s) with incident reactive species fluxes, along with changes in catalyst surface properties, and surface electronic structure. A careful systematic comparison of the different catalysts may elucidate the microscopic origins of the synergistic effect and explore potential plasma activation of thermally inactive catalysts. The project may lead to better understanding of the requirements for plasma conditions and catalysts to fully exploit the synergistic potential of plasma-catalyst systems.
A mechanistic study is proposed that is aimed at providing atomistic insights to unravel the key mechanisms responsible for the synergistic effect(s) during plasma-catalyst interactions. Iron, nickel, cobalt, and copper supported catalysts (on alumina and silica supports) will be employed in this study. These catalysts vary strongly in thermal catalytic activities due to different electronic structure and surface-catalytic mechanisms. The investigation will be focused on studying atomistic surface modifications of the catalysts for the oxygen/methane model system as the plasma-surface interaction conditions are changed. This will include the impact of these surface changes on the products formed and their formation rates. Gas phase characterization will be achieved by molecular beam mass spectrometry and two-photon laser induced fluorescence. Surface characterization will include ellipsometry, ultra-violet and x-ray induced photoemission spectroscopy coupled with thermal desorption, and Fourier transform infrared spectroscopy. The proposed approach has the potential to make transformative changes to the current state-of-the-art by enabling a mechanistically informed design of catalysts ideally suited for plasma-catalyst synergies. In addition to training graduate and undergraduate students, the investigators plan to develop course material on plasma-catalysis and an interactive lecture for middle school students. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89452
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Peter Bruggeman. Collaborative Research: SusChEM: Mechanistic origins of synergetic effects in plasma catalysis. 2017-01-01.
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