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Reaction Kinetics of Carbon Dioxide with Phenyl Glycidyl Ether by TEA-CP-MS41 Catalyst
Carbon dioxide absorption Phenyl glycidyl ether Triethylamine MCM-41 catalyst
2010/9/8
CP-MS41 was synthesized by hydrolysis of tetraorthosilicate, as a silicon source, with 3-chloropropyltriethoxysilane as an organosilane using cetyltrimethylammonium bromide as a template. TEA-CP-MS41 ...
Estimation of Gas Composition and Cage Occupancies in CH4-C2H6 Hydrates by CP-MAS 13C NMR Technique
Gas hydrate Natural gas Gas composition Cage occupancy 13C NMR
2009/7/28
CP-MAS 13C NMR measurements were carried out on mixed gas hydrates containing CH4-C2H6. The changes in NMR chemical shift values for CH4 and C2H6 clearly corresponded to the structural changes in the...
Hydrogenation of Dicarboxylic Acid Diesters to Corresponding Dialdehydes over ZrO2 Based Catalysts (Part 2) Analysis of Catalyst Surface Using Diffuse Reflectance FT-IR and CP/MAS 13C-NMR Spectroscopy
Diester hydrogenation Zirconia catalyst FT-IR Reaction mechanism
2009/7/24
The adsorption species on ZrO2 or Cr-ZrO2 catalyst in the hydrogenation of dimethyl benzenedicarboxylates as well as benzoic acid were characterized by diffuse reflectance FT-IR and CP/MAS 13C-NMR spe...
用13CNMR CP/MAS波谱表征干酪根的性质
13CNMR CP/MAS 波谱表征 干酪根 性质
2013/12/2
用固体13C核磁共振(NMR)交叉极化(CP)魔角旋转(MAS)波谱技术,研究大庆地区不同类型与成熟度的20个干酪根样品的性质;根据7种化学结构与干酪根有关的模型物质的化学位移数据,总结干酪根NMR谱中脂碳与芳碳谱带峰型的变化规律,提出除视芳碳率fa外,脂碳和芳碳峰的峰高与半峰宽之比h1/B1与h2/B2,与干酪根的结构密切相关,是表征干酪根类型与成熟度的良好参数。实验表明,干酪根的芳碳率、环缩合...