Study of the multipeak deuterium thermodesorption in YFe2Dx (1.3 ≤ x ≤ 4.2) by DSC, TD and in situ neutron diffraction
| Autor: | J. F. Fernandez, T. Leblond, Fermin Cuevas, Olivier Isnard, Valérie Paul-Boncour |
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| Přispěvatelé: | Institut de Chimie et des Matériaux Paris-Est (ICMPE), Institut de Chimie du CNRS (INC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Departamento de Física de Materiales [Madrid], Universidad Autonoma de Madrid (UAM), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Universidad Autónoma de Madrid (UAM) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry B. Thermal properties Neutron diffraction Analytical chemistry Thermal desorption A. Laves phases Energy Engineering and Power Technology 02 engineering and technology Laves phase 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Fuel Technology Differential scanning calorimetry Deuterium Interstitial defect Desorption Phase (matter) 0103 physical sciences F. Neutron diffraction PIEnergie 010306 general physics 0210 nano-technology B. Hydrogen storage |
| Zdroj: | International Journal of Hydrogen Energy International Journal of Hydrogen Energy, Elsevier, 2009, 34 (5), pp.2278-2287. ⟨10.1016/j.ijhydene.2008.12.046⟩ |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2008.12.046⟩ |
| Popis: | International audience; The deuterium thermal desorption of various YFe2Dx (x = 1.3, 2.5, 3.5, 4.2) compounds has been studied using differential scanning calorimetry (DSC) and thermal desorption (TD) experiments. These studies show that the number of desorption peaks increases with the deuterium content. In order to understand the origin of this multipeak behaviour, in situ neutron diffraction experiments during thermal desorption have been performed from 290 K to 680 K on YFe2D4.2. Upon heating, a multipeak TD spectrum is observed. It relates to the existence of several YFe2Dx phases with different stabilities. The rate limiting step of this thermal desorption has been therefore attributed to several successive phase transformations rather than to different types of interstitial sites as proposed in previous TD models reported for C15-Laves phase compounds. |
| Databáze: | OpenAIRE |
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