Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"H2 storage"”.
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Novel methods and models to validate H2 storage in solid state materials
… improved methodology for the study of hydrogen storage material (HSM) is presented, for the characterization of smaller samples of HSM at increased accuracy. It includes: the realization of innovative differential instrument; a novel approach to the detailed micro kinetic modelling; increase the …
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Developing Core-Shell Borohydride Nanoarchitectures and Understanding their Structure-Hydrogen Release/Uptake Relationships
… challenges of implementing the future hydrogen (H2) economy is H2 storage with high density, compactness, and safety. Borohydrides have been extensively investigated as promising candidates for H2 storage; however, the high thermodynamic stability, sluggish H2 release kinetics, and limited H2 …
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DEVELOPMENT OF ADSORBENTS FOR THE CAPTURE AND STORAGE OF HYDROGEN AND CARBON DIOXIDE BY MAGNETRON SPUTTERING
… point sources and the promotion of hydrogen (H2) as a “transport fuel”. Current H2 vehicles use high pressure H2 tanks which lack the convenience of their fossil fuel counterparts and present potential safety hazards. Development of adsorbent materials that reduce the energetic costs of H2 and …
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Design and evaluation of seasonal storage hydrogen peak electricity supply system
The seasonal storage hydrogen peak electricity supply system (SSHPESS) is a gigawatt-year hydrogen storage system which stores excess electricity produced as hydrogen during off-peak periods and consumes the stored hydrogen to produce electricity during peak periods of electricity demand. This …
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Thermodynamics of metal hydrides for hydrogen storage applications using first principles calculations
Metal hydrides are promising candidates for H2 storage, but high stability and poor kinetics are the important challenges which have to be solved for vehicular applications. Most of recent experimental reports for improving thermodynamics of metal hydrides have been focused on lowering reaction …
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Ceramic Microreactors for on-Site Hydrogen Production
… has been hindered by safety issues related to storage and distribution of highly flammable H 2. Microreactors, on the other hand, show promise for efficient catalytic reforming of liquid hydrocarbons at high temperatures for on-board generation of H2 for fuel cell applications, thereby avoiding …
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Synthesis and Characterization of Highly Porous Borazine-Linked Polymers via Dehydrogenation/Dehydrocoupling of Borane-Amine Adducts and Their Applications to Gas Storage
… using the virial method at low pressures. Gas storage performance of BLPs at 40 bar were found to be: 14.7-42.5 mg/g for H2 uptake at 77 K; 348.9-717.4 mg/g for CO2 uptake at 298 K; and 40.8-116.1 mg/g for CH4 uptake at 298 K. The CO2/CH4 selectivity of BLPs at 298 K up to 40 bar was calculated …
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Synthesis and Applications of Monolithic Metal-Organic Frameworks
… setting a benchmark in natural gas storage while monolithZIF-8 (Zn(2-methylimidazolate)2) demonstrated a capacity to host catalytic nanoparticles, NP@monolithMOF, for practical and environmental water purification. With the aim of expanding on these preliminary results, the synthesis …
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Development of a novel platform for the optimal design, sizing and energy management of grid-integrated hybrid photovoltaic-hydrogen energy systems.
… full potential, adequate and sustainable energy storage systems are required. Hydrogen (H2) energy storage systems, given their eco-friendliness, fast response and versatility, are seen as potential solutions for mitigating the renewable energy intermittency. This thesis presents new strategies …
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Catalytic Hydrogenation and Hydrodesulfurization of Model Compounds
… products were tetrahydro-2-methylthiophene (TH2MT), pentenes and pentane, with very little C5-thiols observed. The selectivity towards the desired product TH2MT follows the order: noble metals > bimetallics > phosphides > sulfides. The best hydrogenation catalyst was 2% Pt/Al2O3 which …
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Thermodynamics and kinetics of hydrogen storage in magnesium hydride: a theoretical study of catalyst-dopant, defect, and size effects
… high capacity, light-metal hydrides – like MgH2 – remain under scrutiny as reversible H-storage materials. A key question persists: Is there a means to enhance the hydrogen desorption/adsorption properties of this “simple” hydride by decreasing size (e.g., creating nano-sized particles by …