Results 11 to 20 of about 219,729 (312)

The anodically polarized Mg surface products and accelerated hydrogen evolution

open access: yesJournal of Magnesium and Alloys, 2023
To clarify the anodic dissolution mechanism of Mg, the hydrogen evolution from pure Mg in acidic solutions under galvanostatic conditions were systematically measured. With increasing anodic current density, the cathodic hydrogen evolution rate decreased,
Jufeng Huang   +4 more
doaj   +1 more source

Hydrogen Evolution by Trichomonas fœtus [PDF]

open access: yesNature, 1951
Trichomonas fœtus, a polyflagellated protozoon, is parasitic in the vagina of the cow and causes impaired reproduction. J. Andrews and T. von Brand1 carried out some quantitative studies on glucose consumption by T. fœtus during cultivation, and then also found that a gas, which burned explosively when mixed with air, was produced by the organism when ...
Z, SUZUOKI, T, SUZUOKI
openaire   +2 more sources

Quantification of photocatalytic hydrogen evolution [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2013
A new photoreactor with defined irradiation geometry was developed and tested for the water reduction reaction using carbon nitride (“C3N4”) as a photocatalyst. The hydrogen evolution rate was investigated with a sun simulator (I = 1000 W m−2) in two different operation modes: circulation and stirring of the catalyst dispersion.
Schwarze, Michael   +6 more
openaire   +3 more sources

Hydrogen symbioses in evolution and disease [PDF]

open access: yesQJM, 2007
Hydrogen is the source of energy that unites the metabolisms and fuels the innovative potentials of all living organisms. Autotrophs use hydrogen emitted into hydrothermal vents, where symbiotic communities that share hydrogen thrive. On the surface, life developed using photons to cleave water, releasing hydrogen carried into a reverse Krebs cycle to ...
A C, Williams, D B, Ramsden
openaire   +2 more sources

Hydrogen Evolution Catalyzed by Cobaloximes [PDF]

open access: yesAccounts of Chemical Research, 2009
Natural photosynthesis uses sunlight to drive the conversion of energy-poor molecules (H(2)O, CO(2)) to energy-rich ones (O(2), (CH(2)O)(n)). Scientists are working hard to develop efficient artificial photosynthetic systems toward the "Holy Grail" of solar-driven water splitting.
Dempsey, Jillian L.   +3 more
openaire   +3 more sources

Hydrogen Evolution at Liquid–Liquid Interfaces [PDF]

open access: yesAngewandte Chemie International Edition, 2009
AbstractBlowing bubbles: Hydrogen evolution by proton reduction with [(C5Me5)2Fe] occurs at a soft interface between water and 1,2‐dichloroethane (DCE). The reaction proceeds by proton transfer assisted by [(C5Me5)2Fe] across the water–DCE interface with subsequent proton reduction in DCE.
Hatay I   +7 more
openaire   +3 more sources

Intercepting Hydrogen Evolution with Hydrogen-Atom Transfer: Electron-Initiated Hydrofunctionalization of Alkenes

open access: yes, 2022
Hydrogen-atom transfer mediated by earth-abundant transition-metal hydrides (M-Hs) has emerged as a powerful tool in organic synthesis. Current methods to generate M-Hs most frequently rely on oxidatively initiated hydride transfer.
Héctor D., Abruña   +7 more
core   +1 more source

Study on Thermal Effect of Aluminum-Air Battery

open access: yesNanomaterials, 2023
The heat released from an aluminum-air battery has a great effect on its performance and operating life during the discharge process. A theoretical model was proposed to evaluate the resulting thermal effect, and the generated heat was divided into the ...
Yajun Cai   +10 more
doaj   +1 more source

Trends in the Exchange Current for Hydrogen Evolution. [PDF]

open access: yesChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Nørskov, Jens Kehlet; id_orcid 0000-0002-4427-7728   +6 more
openaire   +2 more sources

Weyl Semimetals as Hydrogen Evolution Catalysts [PDF]

open access: yesAdvanced Materials, 2017
The search for highly efficient and low‐cost catalysts is one of the main driving forces in catalytic chemistry. Current strategies for the catalyst design focus on increasing the number and activity of local catalytic sites, such as the edge sites of molybdenum disulfides in the hydrogen evolution reaction (HER).
Rajamathi, C.   +13 more
openaire   +5 more sources

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