Results 11 to 20 of about 702,145 (300)

Photocatalytic Hydrogen Evolution [PDF]

open access: yesCatalysts, 2020
With the foreseeable depletion of fossil fuels and their significant contribution to greenhouse gas emissions, the development of an alternative energy source has become an urgent research field. Among renewable energy resources, solar energy is the largest exploitable resource by far.
Yi-Hsien Yu, Yuan Shuai, Zhengdong Cheng
  +7 more sources

The Role of Hydrogen Sulfide in Evolution and the Evolution of Hydrogen Sulfide in Metabolism and Signaling [PDF]

open access: yesPhysiology, 2016
The chemical versatility of sulfur and its abundance in the prebiotic Earth as reduced sulfide (H2S) implicate this molecule in the origin of life 3.8 billion years ago and also as a major source of energy in the first seven-eighths of evolution. The tremendous increase in ambient oxygen ∼600 million years ago brought an end to H2S as an energy source,
Kenneth R, Olson, Karl D, Straub
openaire   +2 more sources

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

Biomimetic Hydrogen Evolution:  MoS2Nanoparticles as Catalyst for Hydrogen Evolution [PDF]

open access: yesJournal of the American Chemical Society, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Berit, Hinnemann   +7 more
openaire   +2 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

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

Photocatalytic hydrogen evolution from biomass conversion

open access: yesNano Convergence, 2021
Biomass has incredible potential as an alternative to fossil fuels for energy production that is sustainable for the future of humanity. Hydrogen evolution from photocatalytic biomass conversion not only produces valuable carbon-free energy in the form ...
Kayla Alicia Davis   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy