Model Studies of the Mechanism of Catalytic Oxidation by Monolayer Oxide Catalysts
Model Studies of the Mechanism of Catalytic Oxidation by Monolayer Oxide Catalysts
批准号:
0000283
负责人:
Robert Madix
金额:
$30.0万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-06-15 至 2004-05-31
中文摘要
建议题目:单层氧化物催化氧化机理的模型研究建议编号:CTS-0000283主要研究员:Robert Madix研究所:斯坦福大学本项目的目的是加深对混合金属氧化物的生长和化学活性的基本了解,混合金属氧化物是重要的催化材料。模型单晶氧化物表面将被用作载体,并将利用一些表面科学工具来制备和研究载体氧化物。特别是,将研究二氧化钛和氧化铝单晶表面以亚单层到单层覆盖层负载的钒。负载型钒将通过化学气相沉积和浸泡在水溶液中生长。用扫描隧道显微镜研究载体氧化物的生长形态和结构。电子结构将通过光电子和电子能量损失谱进行研究。相关的表面反应性将通过程序升温方法和稳态反应技术进行检测。甲醇氧化和丁烯还原将被用作测试反应。大量的商用多相催化剂都是以负载型钒物种为基础的,这项工作有可能指导钒和其他负载型氧化物催化剂的制备和开发。
英文摘要
AbstractProposal Title: Model Studies of the Mechanism of Catalytic Oxidation by Monolayer Oxide CatalystsProposal Number: CTS-0000283Principal Investigator: Robert MadixInstitution: Stanford UniversityThe goal of this project is to further fundamental understanding of the growth and chemical activity of mixed metal oxides, which are important catalytic materials. Model single crystal oxide surfaces will be used as supports, and supported oxide will be fabricated and studied using a number of surface science tools. In particular, vanadia supported on titania and alumina single crystal surfaces at submonolayer to monolayer coverages will be studied. Supported vanadia will be grown using chemical vapor deposition and immersion in aqueous solution. The growth morphology and structure of the supported oxide will be studied by scanning tunneling microscopy. The electronic structure will be studied by photoelectron and electron energy loss spectroscopy. Related surface reactivity will be examined by both temperature programmed methods and by steady state reaction techniques. Methanol oxidation and butene reduction will be used as test reactions. A large number of commercial heterogeneous catalysts are based on supported vanadia species, and this work has the potential to guide the preparation and development of vanadia and other supported oxide catalysts.
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依托单位:
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批准号:9618807
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财政年份:1997
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依托单位:
Atomistic Studies of Reactions on Surfaces
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批准号:9400526
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资助金额:$77.12万
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财政年份:1994
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依托单位:
Mechanistic Aspects of Catalytic Oxidation by Metals
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Organometallic Surface Chemistry
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批准号:8919406
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资助金额:$46.5万
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财政年份:1990
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负责人:Robert Madix
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依托单位:
"Kinetics and Mechanism of Selective Oxidation of Cyclic andLinear Alkenes on Metal Surfaces"
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批准号:9005135
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项目类别:Continuing Grant
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资助金额:$32.5万
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负责人:Robert Madix
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依托单位:
The Kinetics Mechanism and Dynamics of Oxidation of Organic Molecules on Metal Surfaces
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资助金额:$29.4万
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财政年份:1987
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依托单位:
Organometallic Surface Chemistry
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批准号:8615910
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项目类别:Continuing Grant
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资助金额:$34.93万
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财政年份:1987
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负责人:Robert Madix
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依托单位:
Studies of the Kinetics and Mechanism of Catalytic Oxidationon Metals
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批准号:8320072
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财政年份:1984
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Organometallic Surface Chemistry (Chemistry)
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批准号:8319165
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资助金额:$18.59万
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财政年份:1984
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依托单位:
The Effect of Surface Composition and Structure on Chemical Reactions on Metal Surfaces
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批准号:8023815
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项目类别:Continuing Grant
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资助金额:$23.13万
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财政年份:1981
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负责人:Robert Madix
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依托单位:
Electron Energy Loss Vibrational Spectroscopy of Adsorbates And Intermediates in Catalytic Reactions
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批准号:7920156
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项目类别:Standard Grant
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资助金额:$4.51万
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财政年份:1980
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负责人:Robert Madix
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依托单位:
The Effect of Surface Composition and Structure on Elementary Chemical Reactions on Metallic Substrates
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批准号:7712964
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项目类别:Continuing Grant
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资助金额:$15.25万
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财政年份:1977
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负责人:Robert Madix
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依托单位:
Molecular Beam Studies of High Temperature Reactions of Refractory Materials
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批准号:7415509
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项目类别:Standard Grant
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资助金额:$6.95万
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财政年份:1975
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负责人:Robert Madix
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依托单位:
Fundamental Surface Studies of Chemical Reactivity and Bonding on Single-Crystal Catalytic Metals
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批准号:7514191
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项目类别:Standard Grant
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资助金额:$7.0万
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财政年份:1975
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负责人:Robert Madix
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依托单位:
海外基金