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 7 of 7 for “"Nickel phosphide"”.
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Spectroscopic and Kinetic Studies of Hydrodenitrogenation and Hydrodesulfurization over Supported Nickel Phosphide (Ni₂P)
This dissertation describes preparation and characterization of Ni₂P catalysts and their application in hydrodesulfurization (HDS) and hydrodenitrogenation (HDN). The work carried out includes synthesis of Ni₂P on different siliceous supports, SiO2 and MCM-41. It also includes characterization of …
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Production of phosphorus alloys through thermal reactions and electrochemical reduction of molten apatite
… directly from decomposed molten fluorapatite. Nickel-phosphide is chosen as an examplary alloy both for its incredible thermodynamic stability and for its mechanical properties. Molten hydroxyapatite decomposes as it melts into two solid phosphorus rich phases, tricalcium phosphate and …
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Synthetic Levers Enabling Control Of Phase, Size And Morphology In Transition Metal Phosphide Nanoparticles (fe, Ni)
… PHASE, SIZE AND MORPHOLOGY IN TRANSITION METAL PHOSPHIDE NANOPARTICLES (FE, NI)</strong></p> <p>by</p> <p><strong>ELAYARAJA MUTHUSWAMY </strong></p> <p><strong>May 2011 </strong></p> <p><strong>Advisor:</strong>Dr. Stephanie L. Brock</p> <p><strong>Major: Chemistry</strong></p> …
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Plastic and mixed waste as feedstocks for solar-driven H₂ production
… corrosive system, carbon nitride coupled with a nickel phosphide co-catalyst (CNₓ|Ni₂P) is next explored for plastic and food photoreforming at both neutral and alkaline pH. The oxidation mechanisms of polyethylene terephthalate and polylactic acid over CNₓ are examined in further detail by a …
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Novel, High Activity Hydroprocessing Catalysts: Iron Group Phosphides
A series of iron, cobalt and nickel transition metal phosphides was synthesized by means of temperature-programmed reduction (TPR) of the corresponding phosphates. The same materials, Fe₂P, CoP and Ni₂P, were also prepared on a silica (SiO₂) support. The phase purity of these catalysts was …
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Reactivity and Structure of Supported Nickel Phosphides (Ni₂P) in Deep Hydrodesulfurization Catalysis
This dissertation describes preparation and characterization of Ni₂P catalysts and their application in deep hydrodesulfurization (HDS) of a model sulfur compound, 4,6-dimethyldibenzothiophene (4,6-DMDBT), one of the most refractory S-compounds. This topic is of great importance in addressing …
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Catalytic Hydrodeoxygenation of Bio-Oil Model Compounds (Ethanol, 2-Methyltetrahydrofuran) over Supported Transition Metal Phosphides
… in the treatment of bio-oil, on transition metal phosphide catalysts. The study focuses on reactions of simple oxygenated compounds present in bio-oil -- ethanol and 2-methyltetrahydrofuran (2-MTHF). The findings from this project provide fundamental knowledge towards the hydrodeoxygenation of …