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Showing 1 to 20 of 514 for “"Molybdenum"”.
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Photodisintegration of Molybdenum-92 and Molybdenum-100
Made available in DSpace on 2015-05-12T17:11:40Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0004419.PDF: 2661724 bytes, checksum: bca6863e139b921fc91a2047d1cc612b (MD5) Previous issue date: 1952
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Molybdenum trioxide and molybdenum carbide as promising hydrodeoxygenation catalysts for biomass conversion
Growing concerns due to rising CO2 emissions have made biomass an indispensable source of renewable fuels and chemicals. However, biomass inherently has high oxygen content, which translates to low energy density, thereby necessitating a deoxygenation step before being utilized as fuels. Recently, …
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The marine biogeochemistry of molybdenum
… wisdom holds that the vertical distribution of molybdenum (Mo) in the open ocean is conservative, despite Mo's important biological role and association with Mn oxides and anoxic sediments. Mo is used in both nitrogenase, the enzyme responsible for Nz fixation, and nitrate reductase, which …
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Molybdenum Studies on Illinois Soils
Made available in DSpace on 2014-12-04T20:16:53Z (GMT). No. of bitstreams: 1 0019828.pdf: 3719694 bytes, checksum: 9f5a70b188931488ebd4d1352f0fbeee (MD5) Previous issue date: 1956
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The marine biogeochemistry of molybdenum
… wisdom holds that the vertical distribution of molybdenum (Mo) in the open ocean is conservative, despite Mo's important biological role and association with Mn oxides and anoxic sediments. Mo is used in both nitrogenase, the enzyme responsible for N2 fixation, and nitrate reductase, which …
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Measurement of thermal energy charge transfer rate of multiply charged molybdenum (molybdenum(6+)) and argon
We have made the first measurement of the thermal energy charge transfer rate of Mo{dollar}\sp{6+}{dollar} and neutral argon. This measurement was carried out using a technique that combines the production of ions by laser ablation and an ion trap. The multiply charged ions produced by laser …
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Building a Better Model for the Molybdenum Cofactor: A New Class of Molybdenum Dithiolene Complexes
<p>The molybdenum cofactor (Moco) is comprised of a molybdenum or tungsten center,at least one dithiolene chelate, and a tricyclic pyranopterin ligand. It is present in all living things, and it participates in global carbon, nitrogen, and sulfur cycles. The exact role the ligand plays in enzymatic …
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Thermomechanical property evaluation of molybdenum alloys
… ultra high temperature structural intermetallic molybdenum and its alloys were studied for their thermal properties and correlated to the material microstructure. Thermal expansion tests were carried out using thermo-mechanical analyzer (TMA). Thermo cycling tests were conducted around 650°C …
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INELASTIC ELECTRON SCATTERING FROM MOLYBDENUM-92
<p>Differential cross sections for electron scattering from $\sp{92}{\rm Mo}$ have been measured for excitation energies less than 5.1 MeV. The momentum-transfer dependence of these cross sections has been mapped out over a range of 0.5 to 3.1 $fm\sp{-1}$ in the forward direction and 0.8 to 2.9 …
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Catalysis over molybdenum containing nitride materials
… by testing nanorod forms of βand γphase molybdenum nitrides and comparing their ammonia synthesis activities with molybdenum nitride powders. Morphology was found to have little effect on the reaction and the influence of structure sensitivity is thought to be limited in this case. What …
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Catalytic Activity of Molybdenum-Dioxo Complexes
… the development of rationally designed dioxomolybdenum catalyst active for deoxydehydration (DODH), the net reduction of diols and polyols into alkenes and dienes. Catalyst design involved variations on dioxomolybdenum(VI) supported by a dianionic meridional pincer ligand. Rational substrate …
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Redox Reactions of Aqueous Molybdenum(iv)
The redox chemistry of aqueous molybdenum(III), (IV), and (V) was investigated under a variety of conditions. Monomeric Mo(IV)(,aq), whether produced by the dissolution of "monomeric" Mo(IV) compounds in water or by the oxidation of Mo('3+), is unstable with respect to disproportionation. …
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Molybdenum disulfide nanoporous membranes for water desalination
We demonstrate molybdenum disulfide (MoS2) as a nano porous membrane for water desalination. By performing extensive molecular dynamics simulations, we find that a nanopore in a single-layer MoS2 can effectively reject salt ions and allow transport of water at a high rate. More than 88% of ions are …
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Molybdenum Transport Mechanisms in Fresh Water Environments
Made available in DSpace on 2014-12-14T07:10:47Z (GMT). No. of bitstreams: 1 7606831.pdf: 3604401 bytes, checksum: f033ec8253c96be21456f4130a46e21f (MD5) Previous issue date: 1975
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Anomalous behaviour of molybdenum in steel welds
The addition of molybdenum to steel welds in quite small concentrations leads to a variety of anomalous microstructural and mechanical property effects. In some cases, the effects manifest even when there are no obvious changes in microstructure at the resolution of a transmission electron …
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The electron beam welding of molybdenum sheet
Thesis: B.S., Massachusetts Institute of Technology, Department of Metallurgy, 1961
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