Results 21 to 30 of about 1,130,858 (355)

FeGenie: A Comprehensive Tool for the Identification of Iron Genes and Iron Gene Neighborhoods in Genome and Metagenome Assemblies

open access: yesFrontiers in Microbiology, 2020
Iron is a micronutrient for nearly all life on Earth. It can be used as an electron donor and electron acceptor by iron-oxidizing and iron-reducing microorganisms and is used in a variety of biological processes, including photosynthesis and respiration.
Arkadiy I. Garber   +10 more
doaj   +1 more source

Investigation of Removal of Hexavalent Chromium and Divalent Cobalt From Aqueous Solutions by Organo-montmorillonite Supported Iron Nanoparticles [PDF]

open access: yes, 2016
A new class of nanoscale zero-valent iron particles supported on natural montmorillonite and organo-montmorillonite were synthesized and the feasibility for the removal of and was examined through laboratory batch test.
Prus, V. (Viktoriia)   +1 more
core   +2 more sources

Achieving Ammonium Removal Through Anammox-Derived Feammox With Low Demand of Fe(III)

open access: yesFrontiers in Microbiology, 2022
Feammox-based nitrogen removal technology can reduce energy consumption by aeration and emission of carbon dioxide. However, the huge theoretical demand for Fe(III) becomes a challenge for the further development of Feammox.
Lanlan Hu   +6 more
doaj   +1 more source

The Unprecedented Giant Coupling of Fe-spin State and the As-As Hybridization in Iron-Pnictide [PDF]

open access: yes, 2009
From first principles calculations we unravel surprisingly strong interactions between arsenic ions in iron-pnictides, the strength of which is controlled by the Fe-spin state.
Yildirim, T.
core   +3 more sources

Ferric iron reduction by sulfur- and iron-oxidizing bacteria [PDF]

open access: yesApplied and Environmental Microbiology, 1976
Acidophilic bacteria of the genera Thiobacillus and Sulfolobus are able to reduce ferric iron when growing on elemental sulfur as an energy source. It has been previously thought that ferric iron serves as a nonbiological oxidant in the formation of acid mine drainage and in the leaching of ores, but these results suggest that bacterial catalysis may ...
T D, Brock, J, Gustafson
openaire   +2 more sources

Mössbauer study of nanodimensional nickel ferrite-mechanochemical synthesis and catalytic properties [PDF]

open access: yes, 2005
Iron-nickel spinel oxide NiFe2O4 nanoparticles have been prepared by the combination of chemical precipitation and subsequent mechanical milling. For comparison, their analogue obtained by thermal synthesis is also studied.
B. Kunev   +17 more
core   +2 more sources

Process Integration of Green Hydrogen: Decarbonization of Chemical Industries

open access: yesEnergies, 2020
Integrated water electrolysis is a core principle of new process configurations for decarbonized heavy industries. Water electrolysis generates H2 and O2 and involves an exchange of thermal energy.
Mohammad Ostadi   +5 more
doaj   +1 more source

Superoxide reductase from Giardia intestinalis: structural characterization of the first sor from a eukaryotic organism shows an iron centre that is highly sensitive to photoreduction [PDF]

open access: yes, 2015
Superoxide reductase (SOR), which is commonly found in prokaryotic organisms, affords protection from oxidative stress by reducing the superoxide anion to hydrogen peroxide.
Bandeiras, Tiago M.   +8 more
core   +2 more sources

Synthesis and Spectroscopic Characterization of High-Spin Mononuclear Iron(II) \u3cem\u3ep\u3c/em\u3e-Semiquinonate Complexes [PDF]

open access: yes, 2014
Two mononuclear iron(II) p-semiquinonate (pSQ) complexes have been generated via one-electron reduction of precursor complexes containing a substituted 1,4-naphthoquinone ligand. Detailed spectroscopic and computational analysis confirmed the presence of
Baum, Amanda E.   +3 more
core   +3 more sources

Visible and Infrared Spectroelectrochemistry of Cobalt Porphinones and Porphinediones [PDF]

open access: yes, 2012
The visible and infrared spectroelectrochemistry of the redox chemistry of CoII–porphinone complexes were examined and compared with similar studies of the respective iron complexes.
Ryan, Michael D., Tutunea, Florentina
core   +2 more sources

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