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

被引：6
|
作者：
Herraiz, Michael [1 ]
Batisse, Nicolas [1 ]
Dubois, Marc [1 ]
Nesvizhevsky, Valery V. [2 ]
Cavallari, Chiara [3 ]
Brunelli, Michela [4 ]
Pischedda, Vittoria [5 ]
Radescu, Silvana [6 ]
机构：
[1] Univ Clermont Auvergne, F-63178 Aubiere, France
[2] Inst Max von Laue Paul Langevin, F-38042 Grenoble, France
[3] ESRF European Synchrotron Radiat Facil, F-38042 Grenoble, France
[4] ESRF, Dutch Belgian Beamline DUBBLE, F-38042 Grenoble, France
[5] Univ Lyon, Univ Lyon 1, Inst Lumiere Matiere, UMR5306,CNRS, F-69622 Villeurbanne, France
[6] Univ La Laguna, Dept Fis, Inst Mat & Nanotecnol, MALTA Consolider Team, E-38205 Tenerife, Spain
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2020年 / 124卷 / 26期
关键词：
RAY-RAMAN-SCATTERING; COLD NEUTRONS; HIGH-PRESSURE; DIAMOND; SPECTROSCOPY; REFLECTION; SPECTRUM; HYDROGEN; POWDERS; CARBON;
D O I：
10.1021/acs.jpcc.0c03083
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Data of quasi-specular reflection of cold neutrons, prompt-gamma 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 samples were studied using fluorination samples. Removal of both the sp(2) amorphous carbon shell and the 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).
引用
收藏
页码：14229 / 14236
页数：8
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