Physical Sciences and Mathematics Commons^™

Solid-State Nmr Of Co2 Mineralization And Nmr Crystallography, Jinlei Cui

Arts & Sciences Electronic Theses and Dissertations

The work described in this dissertation has been accomplished by using solid-state nuclear magnetic resonance (SSNMR) spectroscopy to investigate CO2 mineralization and to refine the positions of protons in the crystalline system. The reaction of forsterite (Mg2SiO4) and 13CO2 is presented here, which is measured using in-situ 13C NMR spectroscopy without removing the sample from the reactor. 29Si SSNMR is used to investigate the reaction of forsterite with 13CO2 in the presence of water or NaCl brine as a function of depth in the sample. Additionally, we also show that NMR crystallography can significantly improve structure refinement of hydrogens’ positions …

Solid-State Nmr Of Co2 Mineralization And Nmr Crystallography, Jinlei Cui

Arts & Sciences Electronic Theses and Dissertations

The work described in this dissertation has been accomplished by using solid-state nuclear magnetic resonance (SSNMR) spectroscopy to investigate CO2 mineralization and to refine the positions of protons in the crystalline system. The reaction of forsterite (Mg2SiO4) and 13CO2 is presented here, which is measured using in-situ 13C NMR spectroscopy without removing the sample from the reactor. 29Si SSNMR is used to investigate the reaction of forsterite with 13CO2 in the presence of water or NaCl brine as a function of depth in the sample. Additionally, we also show that NMR crystallography can significantly improve structure refinement of hydrogens’ positions …

Solid-State Nmr Study On Solid Amine Sorbents, Chia-Hsin Chen

Arts & Sciences Electronic Theses and Dissertations

Solid-state NMR spectroscopy is a useful structural tool, with a high sensitivity to the local atomic-scale environment providing a powerful probe of structure, disorder, and dynamics of solids. In this dissertation, solid-state NMR was used to characterize chemisorbed products of solid amine sorbents exposed to CO2. Solid amine sorbents are promising candidates to capture CO2 for the purposes of mitigation of this greenhouse gas in high-concentration sources, such as flue gases emitted from power plants or industrial sites. Understanding the adsorption process of these solid materials is critical to help design better materials to have a higher CO2 uptake.

A …