| Titre : |
The study of solid hydrogen storage and o-dihydrogen complexes |
| Type de document : |
texte imprimé |
| Auteurs : |
Sameh Dhaher, Auteur ; Grellier, Mary, Directeur de thèse ; Sylviane Sabo-Etienne, Directeur de thèse |
| Langues : |
Anglais (eng) |
| Tags : |
HYDROGEN STORAGE HYDROGENATION DEHYDROGENATION SYNTHESIS CHARACTERIZATION APPLICATION DOPING OF MATERIALS ENERGY VECTOR SIGMA DIHYDROGEN COMPLEXES |
| Résumé : |
"Adopting clean and emission- free energy cycle using hydrogen as an energy carrier could be the solution in order to curb the ill effects of energy crisis and global warming on the planet. Thus, the lack of efficient hydrogen storage devices has stimulated the search of new systems. In this manuscript, the dehydrogenation of the bis-dihydrogen ruthenium complex without additives at the ruthenium center has been reported in Chapter II. The unusual and rare dimeric complex bearing two phosphido bridges was accessed from thermolysis of the bis(dihydrogen) complex RuH2(H2)2(PCyp3)2. The complex was characterized by NMR, IR, UV-Visible, X-ray, neutron structure and DFT calculations. Surprisingly, the complex shows a reversible up take and release of H2 at room temperature in solution as well as in the solid state. This is one major criteria for designing a solid hydrogen storage material. The activation of the H-H bond has been subjected to a detailed study in Chapter III. Several novel ruthenium complexes bearing fac-coordinating ligands, 1,3,5-triaminocyclohexane (tach) and 1,4,7-triazacyclononane (tacn) and different anions have been prepared. DFT investigation has been deployed throughout these studies for a fine-level examination of H-H bond activation. An attractive goal in the context of hydrogen storage is to combine magnesium hydride, MgH2 or MOFs to organometallic complexes. This is the purpose of the fourth chapter. Doping magnesium hydride with ruthenium or nickel precursors shows promising results." |
| Document : |
Thèse de Doctorat |
| Etablissement_delivrance : |
Université deToulouse 3 |
| Date_soutenance : |
13/12/2019 |
| Ecole_doctorale : |
Sciences de la Matière (SdM) (Toulouse) |
| Domaine : |
Chimie Organométallique et de Coordination |
| En ligne : |
http://thesesups.ups-tlse.fr/4555/ |
The study of solid hydrogen storage and o-dihydrogen complexes [texte imprimé] / Sameh Dhaher, Auteur ; Grellier, Mary, Directeur de thèse ; Sylviane Sabo-Etienne, Directeur de thèse . - [s.d.]. Langues : Anglais ( eng)
| Tags : |
HYDROGEN STORAGE HYDROGENATION DEHYDROGENATION SYNTHESIS CHARACTERIZATION APPLICATION DOPING OF MATERIALS ENERGY VECTOR SIGMA DIHYDROGEN COMPLEXES |
| Résumé : |
"Adopting clean and emission- free energy cycle using hydrogen as an energy carrier could be the solution in order to curb the ill effects of energy crisis and global warming on the planet. Thus, the lack of efficient hydrogen storage devices has stimulated the search of new systems. In this manuscript, the dehydrogenation of the bis-dihydrogen ruthenium complex without additives at the ruthenium center has been reported in Chapter II. The unusual and rare dimeric complex bearing two phosphido bridges was accessed from thermolysis of the bis(dihydrogen) complex RuH2(H2)2(PCyp3)2. The complex was characterized by NMR, IR, UV-Visible, X-ray, neutron structure and DFT calculations. Surprisingly, the complex shows a reversible up take and release of H2 at room temperature in solution as well as in the solid state. This is one major criteria for designing a solid hydrogen storage material. The activation of the H-H bond has been subjected to a detailed study in Chapter III. Several novel ruthenium complexes bearing fac-coordinating ligands, 1,3,5-triaminocyclohexane (tach) and 1,4,7-triazacyclononane (tacn) and different anions have been prepared. DFT investigation has been deployed throughout these studies for a fine-level examination of H-H bond activation. An attractive goal in the context of hydrogen storage is to combine magnesium hydride, MgH2 or MOFs to organometallic complexes. This is the purpose of the fourth chapter. Doping magnesium hydride with ruthenium or nickel precursors shows promising results." |
| Document : |
Thèse de Doctorat |
| Etablissement_delivrance : |
Université deToulouse 3 |
| Date_soutenance : |
13/12/2019 |
| Ecole_doctorale : |
Sciences de la Matière (SdM) (Toulouse) |
| Domaine : |
Chimie Organométallique et de Coordination |
| En ligne : |
http://thesesups.ups-tlse.fr/4555/ |
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