Study of Novel Ion/surface Interactions Using Soft-landing Ion Mobility

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Preparative mass spectrometry is a gas-phase ion deposition technique aimed at deposition of monodisperse ion beams on a surface. This is accomplished through the implementation of a soft-landing ion mobility system which allows for high ion flux of conformationally selected ion packets. The soft-landing ion mobility system has been applied to a number of unique chemical problems including the deposition of insulators on graphene, the preparation of reusable surface enhanced Raman spectroscopic substrates, and the deposition of uranium nanoparticles. Soft-landing ion mobility provided a platform for the quick deposition of usable amounts of materials, which is the major objective of ... continued below

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Hoffmann, William Darryle December 2012.

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  • Hoffmann, William Darryle

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Preparative mass spectrometry is a gas-phase ion deposition technique aimed at deposition of monodisperse ion beams on a surface. This is accomplished through the implementation of a soft-landing ion mobility system which allows for high ion flux of conformationally selected ion packets. The soft-landing ion mobility system has been applied to a number of unique chemical problems including the deposition of insulators on graphene, the preparation of reusable surface enhanced Raman spectroscopic substrates, and the deposition of uranium nanoparticles. Soft-landing ion mobility provided a platform for the quick deposition of usable amounts of materials, which is the major objective of preparative mass spectrometry. Soft-landing ion mobility is unique when compared to other preparative mass spectrometric techniques in that the ion packets are conformationally separated, not separated on mass to charge ratio. This provides orthogonal complementary data to traditional mass spectrometric techniques and allows for the study of conformationally monodisperse surfaces. The diversity of problems that have been and continued to be explored with soft-landing ion mobility highlight the utility of the technique as a novel tool for the study of multiple ion/surface interactions.

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  • December 2012

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  • Aug. 13, 2013, 2:47 p.m.

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  • Nov. 16, 2016, 1:16 p.m.

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Hoffmann, William Darryle. Study of Novel Ion/surface Interactions Using Soft-landing Ion Mobility, dissertation, December 2012; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc177214/: accessed March 30, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .