Results 51 to 60 of about 423,081 (398)

Anomalous supply of bioessential molybdenum in mid-Proterozoic surface environments [PDF]

open access: yes, 2016
We are grateful to A. Sandison and W. Thayalon for skilled technical support, and Mike Porter and an anonymous reviewer, who helped to clarify the manuscript.Peer ...
Lindgren, Paula, Parnell, John
core   +1 more source

Rotational barrier of a molybdenum-molybdenum quadruple bond [PDF]

open access: yesProceedings of the National Academy of Sciences, 1984
The synthesis and characterization of molybdenum(II) porphyrin dimers containing unbridged metal-metal quadruple bonds are presented. Variable temperature 300 MHz 1 H NMR studies of meso -substituted derivatives provide novel solution evidence for both the existence of quadruple bonds and for
James P. Collman, L. Keith Woo
openaire   +3 more sources

Preparation of Mo–Ni alloys by spark plasma sintering

open access: yesFenmo yejin jishu
Mo−Ni alloys were prepared by spark plasma sintering. The effects of sintering temperature, pressure, holding time, and heating rate on the relative density of Mo−Ni alloys were studied.
WANG Na   +7 more
doaj   +1 more source

Coupled molybdenum carbide and reduced graphene oxide electrocatalysts for efficient hydrogen evolution

open access: yesNature Communications, 2016
Electrochemical water splitting is one of the most economical and sustainable methods for large-scale hydrogen production. However, the development of low-cost and earth-abundant non-noble-metal catalysts for the hydrogen evolution reaction remains a ...
Ji-Sen Li   +8 more
semanticscholar   +1 more source

Recent Advances in Molybdenum-Based Materials for Lithium-Sulfur Batteries

open access: yesResearch, 2021
Lithium-sulfur (Li-S) batteries as power supply systems possessing a theoretical energy density of as high as 2600 Wh kg−1 are considered promising alternatives toward the currently used lithium-ion batteries (LIBs).
Henghan Dai   +10 more
semanticscholar   +1 more source

The Molybdenum Cofactor [PDF]

open access: yesJournal of Biological Chemistry, 2013
The transition element molybdenum needs to be complexed by a special cofactor to gain catalytic activity. Molybdenum is bound to a unique pterin, thus forming the molybdenum cofactor (Moco), which, in different variants, is the active compound at the catalytic site of all molybdenum-containing enzymes in nature, except bacterial molybdenum nitrogenase.
openaire   +3 more sources

Molybdenum Intake Influences Molybdenum Kinetics in Men [PDF]

open access: yesThe Journal of Nutrition, 2007
The objectives of this study were to determine physiologic adaptations that occur when humans are exposed to a wide range of molybdenum intake levels and to identify the pathways that are influenced by dietary intake. Four males consumed each of 5 daily molybdenum intakes of 22, 72, 121, 467, and 1490 microg/d (0.23, 0.75, 1.3, 4.9, and 15.5 micromol/d)
Judith R. Turnlund, Janet A. Novotny
openaire   +3 more sources

Porous molybdenum carbide nano-octahedrons synthesized via confined carburization in metal-organic frameworks for efficient hydrogen production

open access: yesNature Communications, 2015
Electrochemical water splitting has been considered as a promising approach to produce clean and sustainable hydrogen fuel. However, the lack of high-performance and low-cost electrocatalysts for hydrogen evolution reaction hinders the large-scale ...
H. Wu   +4 more
semanticscholar   +1 more source

Hydration Reaction of Cementitious Materials Prepared with Molybdenum Tailings

open access: yesChemical Engineering Transactions, 2018
Cementitious materials is prepared with blended powders including molybdenum tailings, slag, clinker and gypsum. The effect of molybdenum tailings proportion on strengths and hydration products of molybdenum- tailing-based neat paste are studied.
Yanqing Di   +3 more
doaj   +1 more source

Oxidation-resistant coatings for refractory metals used in inert atmospheres [PDF]

open access: yes, 1970
Test conditions and results are reported for various coatings on a 1 percent zirconium columbium alloy at a temperature of 2000 deg F. Molybdenum silicide over molybdenum is most effective coating, tin-aluminum coating is adequately protective, chromium ...
Phillips, W. M.
core   +1 more source

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