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Full-Text Articles in Chemistry
Optimization Of The Synthesis Parameters Of Sapo-34, Adam Honchar
Optimization Of The Synthesis Parameters Of Sapo-34, Adam Honchar
Undergraduate Student Research Internships Conference
A microporous material known as SAPO-34 is a very efficient catalyst in methanol-to-olefins reactions. My project aimed to optimize synthesis parameters of SAPO-34 to reduce crystallization time in order to study the formation mechanism using In-situ NMR spectroscopy. Understanding the crystallization mechanism would allow us to make it more efficient and tailor-made to fit for other applications.
In Situ Study Of Geological Fluid Inclusions Using 23na Nuclear Magnetic Resonance Spectroscopy, Stephen Pilar
In Situ Study Of Geological Fluid Inclusions Using 23na Nuclear Magnetic Resonance Spectroscopy, Stephen Pilar
Electronic Thesis and Dissertation Repository
23Na Magic Angle Spinning Solid State Nuclear Magnetic Resonance (MAS SS NMR) spectroscopy has been used to study natural geological samples of halite, fluorite, and quartz to evaluate the efficacy of NMR spectroscopy for in situ fluid inclusion analysis. NaCl calibration standards yielded a strong linear correlation (R2=0.9919) for salinity, albeit only over a ~1 ppm breadth of chemical shift. Fluid inclusions were successfully identified in all three types of minerals studied using MAS NMR. Chemical analysis with Inductively Coupled Plasma -- Mass Spectrometry (ICP-MS) was employed to quantify elemental contaminants in halite samples. Powder X-Ray Diffraction …