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 20 of 814 for “"Gas phase"”.
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Super-ambient temperature gas phase photocatalysis
… is concerned with the use of a continuous flow gas phase photocatalytic system to produce hydrogen as a cleaner fuel source. M/TiO2 photocatalysts (where M is Pt, Pd, Au and Ag) was used in a continuous flow gas phase photocatalytic system. Two main reactions were examined in detail, the …
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Gas Phase Lewis Acid-Base Interactions
Made available in DSpace on 2014-12-09T17:35:07Z (GMT). No. of bitstreams: 1 6503665.pdf: 4735633 bytes, checksum: 52109a08d7e92e8f90ec7b5e4956af0d (MD5) Previous issue date: 1964
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Mercury Photosensitized Oxidations in the Gas Phase
This thesis describes experiments on the mercury-photosensitized oxidations of some hydrocarbon alkenes with molecular oxygen. Products have been identified and variations in product yields studied in detail as a function of alkene/oxygen ratio, total pressure, incident light intensity and time for …
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Mercury Sensitized Gas Phase Photochemistry of Norcamphor
Made available in DSpace on 2014-12-09T17:35:54Z (GMT). No. of bitstreams: 1 6808084.pdf: 2697534 bytes, checksum: 7ff430de975ce186757d7e591e6c4ecc (MD5) Previous issue date: 1967
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Gas Phase Exchange Reactions of Homopolar Molecules
Made available in DSpace on 2014-12-05T19:37:37Z (GMT). No. of bitstreams: 1 6100188.pdf: 2280459 bytes, checksum: da56f4aadb152f5ebcd505f96808f0ac (MD5) Previous issue date: 1960
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Gas-phase cleaning of silicon wafer surfaces
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.
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Gas-Phase Epoxidation of Ethylene and Propylene
… and tested for catalytic performance in the gas-phase direct oxidation of ethylene to ethylene oxide. For this study, which used no promoters, ethylene oxidation selectivity of SiC-supported catalysts ranged from 10 to 60% and conversion from 0-4.5%. Silicon carbide supported catalysts …
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Anion-induced zwitterion formation in gas-phase arginine
Gas-phase studies of biological molecules provide important information not available in solution. In particular, all naturally occurring amino acids are known to be zwitterionic in solution, whereas most adopt canonical structures in the gas-phase. However, complexation with solvent molecules and …
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ENHANCING GAS PHASE FISCHER-TROPSCH SYNTHESIS CATALYST DESIGN
… a newly designed fixed bed reactor system in the gas phase. It should be noted that the three phase slurry bubble reactors systems are commercially preferred. The reaction conditions were varied for benchmarking the Fe-Zn-K/ gamma- Al<sub>2</sub>O<sub>3</sub> catalyst and for the bimetallic …
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Gas phase production of single-walled carbon nanotubes
… have been produced in a continuous flow gasphase catalytic growth process, in a heated flow of carbon monoxide at pressures of 1--10 atmospheres and temperatures of 800--1200°C. Catalytic cluster nuclei for the nanotubes are generated in situ by thermal decomposition of iron …
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Gas phase electrochemical CO2 reduction to C2+ products
L'abstract è presente nell'allegato / the abstract is in the attachment
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Preliminary investigations of gas phase hydrogen fluoride saccharification
Thesis (M.S.)--Michigan State University. Dept. of Chemical Engineering, 1985
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Gas phase hydrodynamics inside a circulating fluidized bed
… the previous twenty years. However the motion of gas is less well understood. There has previously only been indirect measurements of gas velocities and fluctuations. The gas phase is important as the motion of the particles is controlled by the gas. Accurate simulations of CFB's are not possible …
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Collection of gas phase chlorine using bonded silica sorbents
… have been investigated for collection of gas phase chlorine. Sorbents were prepared by bonding aminopropyl groups to a substrate (silica gel or filters) and then reacting with alkyl or aryl substituted sulfonyl chloride to produce the corresponding surface bound sulfonamide. Silica gel …
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Gas-phase synthesis of gold- and silica-coated nanoparticles.
… resonance combined with superparamagnetism. Gas-phase nanoparticle synthesis processes are promising because they can continuously produce particles with high mass-yield rates. In this dissertation, new methods are investigated for producing gas-phase coatings of nanoparticles in an …
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Charge and momentum transfer processes for gas-phase nanoparticles.
… transfer processes between aerosol particles and gas molecules proceed via collisions. There is a need to better understand such collision driven phenomena in order to predict particle dynamics and growth processes. This dissertation consists of two research projects focusing on charge and …
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Infrared spectroscopic characterization of strongly bound gas phase clusters
Contains fulltext : 19273_infrspcho.pdf (Publisher’s version ) (Open Access)
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Gas phase benzene hydrogenation on a nickel-silica catalyst
Contains fulltext : mmubn000001_216214475.pdf (Publisher’s version ) (Open Access)
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