Laser Ablation Mass Spectrometry of Inorganic Transition Metal Compounds. Additional Knowledge for the Understanding of Ion Formation

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Abstract

Laser ablation of transition-metal oxides have been investigated to better understand the formation processes of inorganic cluster ions. The study of binary oxide mixtures and the relative distribution of the ions produced suggest three salient mechanisms that occur after laser/matter interaction, that function to produce the observed ensemble of ionic species. Molecular recombination reactions, unimolecular dissociation processes, emission of small neutrals, including molecular oxygen from transition-metal oxide samples, or from species expelled in gas phase appear to be a significant mechanism, especially under high laser irradiance conditions. These processes are used to propose a set of pathways to rationalize the envelope of ionic clusters formed under photon bombardment. © 2008 American Society for Mass Spectrometry.

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Aubriet, F., & Muller, J. F. (2008). Laser Ablation Mass Spectrometry of Inorganic Transition Metal Compounds. Additional Knowledge for the Understanding of Ion Formation. Journal of the American Society for Mass Spectrometry, 19(4), 488–501. https://doi.org/10.1016/j.jasms.2007.12.008

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