NMR Studies of Solid Surfaces
NMR Studies of Solid Surfaces
批准号:
9021003
负责人:
Gary Maciel
金额:
$28.56万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1991
资助国家:
美国
项目状态:
已结题
起止时间:
1991-01-15 至 1994-06-30
中文摘要
在分析和曲面的一般领域, 化学,侧重于一系列核磁共振 (NMR)应用于二氧化硅表面研究的技术 及相关材料。 这项研究有望提高我们的 了解这些重要的材料, 土壤和岩石的成分。 Silca表面将直接用1H、29 Si和17 O进行检查 NMR技术,并通过化学修饰间接检查 然后使用NMR。 通过改变 化学修饰分子表面形貌,以及 内部孔隙或通道表面与 将研究外表面。 的 色谱重要的C18-二氧化硅系统将进行研究 通过氘线形实验的组合, 松弛实验和其他方法。
英文摘要
The research, in the general area of Analytical and Surface Chemistry, focuses on a range of nuclear magnetic resonance (NMR) techniques applied to the study of the surfaces of silica and related materials. The study promises to enhance our understanding of these important materials, the basic components of soils and rocks. Silca surfaces will be directly examined by 1H, 29Si and 17O NMR techniques, and indirectly examined by chemically modifying the surface and then using NMR. By varying the size of the chemically modifying molecules surface topography, and distincitions between internal pore or channel surfaces and the external surfaces will be investigated. The chromatographically important C18-silica system will be studied by a combination of deuterium line-shape experiments, relaxation experiments and other methods.
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会议论文
Bridging the Gap Between Surface Science and High-Surface-Area Chemistry: A NMR-Based Approach
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批准号:0413611
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项目类别:Continuing Grant
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资助金额:$45.9万
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财政年份:2004
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负责人:Gary Maciel
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依托单位:
U.S.-China Cooperative Research (Chemistry): Dynamic Nuclear Polarization in Carbonaceous Solids
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批准号:9016637
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项目类别:Standard Grant
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资助金额:$2.66万
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财政年份:1990
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负责人:Gary Maciel
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依托单位:
Regional Instrumentation Facility for Nuclear Magnetic Resonance Spectroscopy
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批准号:8616437
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项目类别:Continuing Grant
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资助金额:$84.0万
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财政年份:1987
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负责人:Gary Maciel
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依托单位:
High-Resolution NMR Studies at Solid Surfaces
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批准号:8610151
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项目类别:Continuing Grant
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资助金额:$30.61万
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财政年份:1986
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负责人:Gary Maciel
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依托单位:
Nuclear Magnetic Resonance Studies of Resin Binders and Adhesives (Materials Research)
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批准号:8418446
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项目类别:Continuing Grant
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资助金额:$24.18万
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财政年份:1985
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负责人:Gary Maciel
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依托单位:
High-Resolution NMR Studies at Solid Surfaces (Chemistry)
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批准号:8306518
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项目类别:Continuing Grant
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资助金额:$29.06万
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财政年份:1983
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负责人:Gary Maciel
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依托单位:
Regional Instrumentation Facility for Nuclear Magnetic Resonance Spectrometry
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批准号:8208821
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项目类别:Continuing Grant
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资助金额:$189.48万
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财政年份:1982
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负责人:Gary Maciel
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依托单位:
Analysis of the Organic Constituents of Solid Fossil Fuels And Other Geological Samples By 13c Nmr
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批准号:7683374
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项目类别:Standard Grant
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资助金额:$5.0万
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财政年份:1978
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负责人:Gary Maciel
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依托单位:
Regional Insrumentation Facility For Nuclear Magnetic Resonance Spectrometry
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批准号:7818581
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项目类别:Standard Grant
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资助金额:$117.58万
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财政年份:1978
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负责人:Gary Maciel
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依托单位:
Metal Nuclide Nmr Studies. Complexation of Group Ii Metal Ions
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批准号:7423980
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项目类别:Continuing Grant
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资助金额:$14.6万
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财政年份:1974
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负责人:Gary Maciel
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依托单位:
海外基金