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 999 for “"Methanol"”.
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Direct Methanol Fuel Cells Using Pure Methanol
… Of the various fuel cell types, direct methanol fuel cells (DMFCs) hold a set of distinct advantages for stationary and small portable applications. These advantages include faster refueling compared to battery charging, high gravimetric energy density, and ease of production and use …
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Combustion and emissions characteristics of methanol, methanol-water, and gasoline-methanol blends in a spark ignition engine
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Methanol-Oxidation an getragenen Modellkatalysatoren
… sich bei der systematischen Untersuchung der Methanol-Oxidation unter ähnlichen Bedingungen (2,0x10^(-6) mbar und 425-465 K) eine inhibierende Wirkung von Sauerstoff auf die Dissoziation von Methanol. Die Adsorptions-, Desorptions- und Dissoziationseigenschaften von Methanol werden von 90-465 …
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Energieeinsparmaßnahmen am Methanol-Brennstoffzellen-Fahrzeug
Methanol fuel cell engines are regarded by leading automobile companies as a promising alternative to optimized conventional internal combustion engines in order minimize the effect of a shortage of fossil fuels which is caused by the increasing worldwide traffic. Nevertheless, some recent studies …
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Abnormal combustion - methanol versus gasoline
… The relatively higher knock resistance of methanol opens up possibilities for increased efficiency or engine size. The auto-ignition of methanol and gasoline was characterised in terms of fundamental parameters and the results were compared. The research findings were used in the analysis …
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Direct oxidation of methane to methanol
… catalysts that can directly oxidise methane to methanol are of great scientific importance. The total oxidation of methane to CO2 is considered for amorphous surface palladium oxide. A partially oxidised palladium surface is found to have both metal-like and oxide-like character. This peculiar …
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Mixed-feed methanol-oxygen fuel cells.
Massachusetts Institute of Technology. Dept. of Chemical Engineering. Thesis. 1966. Ph.D.
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The infrared spectrum of solid methanol
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1948
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The Loss of Methanol Utilization in Methylobacteria
… would lose the ability to use Cl compound methanol after prolonged exposure to multi-carbon substrates. To determine this, the bacteria was grown on MR2A3 (multi-carbon substrates) and MOM (single-carbon substrates) for multiple generations and tested for loss of function on a series of …
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Characterization of gold catalysts for methanol synthesis
… it has been shown that the production of methanol from CO (and CO 2) can be catalysed by gold particles with crystallite sizes below 5nm (Haruta, 1997), this reaction has received comparatively little attention compared to the more extensively studied CO oxidation reaction. Testing was …
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Foam formation in a PMMA-methanol system
… solid-state foaming process employing PMMA and methanol was developed. The process is partly analogous to the CO2-based nanofoam development process, but experimentally more accessible. This foam and its development were characterized and important mechanisms in the process for nucleation and …
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Polymer electrolyte membranes for direct methanol fuel cells
… polymer electrolyte membranes (PEMs) for direct methanol fuel cells (DMFCs). In this thesis, relatively inexpensive monomers, 2-acrylamido-2-methyl propanesulfonic acid (AMPS) and 3-sulfopropyl methacrylate (SPM) in particular, were deployed as the proton source in a predominantly acrylic-based …
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The electrochemical reduction of formic acid to methanol
… IrO2. For the reduction of formic acid to methanol experiments, the 70:30 mol% IrO2:TaC electrocatalyst was used as the anodic electrocatalyst and polyaniline (PANI) as the cathodic electrocatalyst. In eight samples collected from five of the nine membranes which were prepared, methanol was …
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Direct methanol fuel cell catalysts with controllable interface
… for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. Model bimetallic and multi-component catalysts with customizable and easily identifiable …
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The effects of higher oxygenates on methanol synthesis
… the effects of higher oxygenate species on the methanol synthesis performance of various methanol synthesis catalysts were examined. Experiments were performed whereby a selected higher oxygenate (such as a carboxylic acid) was co-fed into a methanol synthesis system at low concentrations, and …
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Development and characterization of methanol decomposition catalysts, The
Includes bibliographical references (pages 216-222).
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Massenströme und Stromdichteverteilung in flüssig gespeisten Direkt-Methanol-Brennstoffzellen
… and fluid dynamic analysis of liquid feed Direct-Methanol-Fuel-Cells (DMFC). The influence of operating and design parameters on the performance and the mass and heat balance is investigated. For this purpose experimental studies and modelling are combined. The results give hints to an optimised …
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