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A Multitechnique Study of Fluorinated Nanodiamonds for Low-Energy Neutron Physics Applications

Abstract : Data of quasi-specular reflection of cold neutrons, prompt-γ neutron analysis, X-ray Raman scattering (XRS) and neutron Pair distribution function (PDF) analysis with powder of detonation nanodiamonds are analyzed to collect their structural properties and chemical composition. Both as-synthesized and purified were studied using fluorination samples. Removal of both sp 2 amorphous carbon shell and hydrogen atoms is evidenced respectively by the change of neutron-nuclei optical potentials of nanoparticles and the increase of their neutron reflectivity. Moreover, sp 3 diamond cores of nanoparticles stay intact during the fluorination as revealed by similar scattering patterns, PDF and XRS data. Quasi-specular reflection, PDF and XRS data are complementary for the study of nanomaterials and in good agreement with conventional characterization techniques (infrared spectroscopy and solid-state NMR).
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Submitted on : Thursday, November 26, 2020 - 2:45:58 PM
Last modification on : Thursday, June 9, 2022 - 8:20:08 AM
Long-term archiving on: : Saturday, February 27, 2021 - 7:24:46 PM


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Michael Herraiz, Nicolas Batisse, Marc Dubois, Valery V Nesvizhevsky, Chiara Cavallari, et al.. A Multitechnique Study of Fluorinated Nanodiamonds for Low-Energy Neutron Physics Applications. Journal of Physical Chemistry C, American Chemical Society, 2020, 124 (26), pp.14229-14236. ⟨10.1021/acs.jpcc.0c03083⟩. ⟨hal-03025933⟩



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