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Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Solid-state STRAFI NMR probe for material imaging of quadrupolar nuclei
Joel A Tang1, Guiming Zhong, Sneha Dugar
1National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA.
Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|November 16, 2012
Summary
Stray field imaging (STRAFI) offers a novel MRI method for challenging materials. This study presents a new STRAFI probe for quadrupolar nuclei, achieving micrometer-scale resolution for lithium materials.
Area of Science:
- Magnetic Resonance Imaging
- Materials Science
- Solid-State Chemistry
Background:
- Conventional MRI methods struggle with imaging certain solid materials.
- High resolution is difficult for small samples due to gradient limitations.
- Stray field imaging (STRAFI) presents an alternative approach for material characterization.
Purpose of the Study:
- To develop and demonstrate a STRAFI probe for imaging materials containing quadrupolar nuclei.
- To achieve micrometer-scale resolution for analyzing small volume samples.
- To apply the developed probe for characterizing lithium-ion battery electrode materials.
Main Methods:
- Utilized a 19.6 T magnet with a high fringe field gradient strength (72 T/m).
- Developed a specialized STRAFI probe designed for quadrupolar nuclei.
- Acquired one-dimensional (1D) profiles of lithium phantoms (liquid and solid state).
Main Results:
- Achieved clearly resolved features at the micrometer scale for lithium phantoms.
- Demonstrated the capability of the STRAFI probe for analyzing solid-state materials.
- Successfully examined a lithium-ion battery electrode material, showcasing practical application.
Conclusions:
- The developed STRAFI probe enables high-resolution imaging of materials with quadrupolar nuclei.
- This technique overcomes limitations of conventional MRI for specific solid materials.
- STRAFI imaging is a promising tool for advanced materials analysis, including battery components.
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