Results 11 to 20 of about 208,382 (245)

TEMPERATURE DEPENDENCE OF 57Fe-MÖSSBAUER SPECTRA FOR A 〖〖Fe〗_Fc^II-Fe〗_tpy^II-〖Fe〗_Fc^II TRINUCLEAR SYSTEM [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2015
57Fe Mӧssbauer spectra were recorded for 1'-terpyridine ferrocenecarboxylic acid and [bis(1'-terpyridine ferrocenecarboxylic acid) Fe(II)]2+ in the temperature range 7 – 293 K.
Dumitru Sirbu
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THE SPECTRUM OF Fe II [PDF]

The Astrophysical Journal Supplement Series, 2012
The spectrum of singly-ionized iron (Fe II) has been recorded using high-resolution Fourier transform and grating spectroscopy over the wavelength range 900 Å to 5.5 μm. The spectra were observed in high-current continuous and pulsed hollow cathode discharges using Fourier transform (FT) spectrometers at the Kitt Peak National Observatory, Tucson, AZ ...
Nave, Gillian, Johansson, Sveneric
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Growth of microaerophilic Fe(II)‐oxidizing bacteria using Fe(II) produced by Fe(III) photoreduction

Geobiology, 2022
AbstractIron(II) (Fe(II)) can be formed by abiotic Fe(III) photoreduction, particularly when Fe(III) is organically complexed. Light‐influenced environments often overlap or even coincide with oxic or microoxic geochemical conditions, for example, in sediments.
Lueder, Ulf, Maisch, Markus, Jørgensen, Bo Barker, Druschel, Gregory, Schmidt, Caroline, Kappler, Andreas, Maisch, Markus; 1 Geomicrobiology Group Center for Applied Geoscience (ZAG) University of Tuebingen Tuebingen Germany, Jørgensen, Bo Barker; 2 Section for Microbiology Department of Biology Aarhus University Aarhus Denmark, Druschel, Gregory; 3 Department of Earth Sciences Indiana University‐Purdue University Indianapolis Indiana USA, Schmidt, Caroline; 1 Geomicrobiology Group Center for Applied Geoscience (ZAG) University of Tuebingen Tuebingen Germany, Kappler, Andreas; 1 Geomicrobiology Group Center for Applied Geoscience (ZAG) University of Tuebingen Tuebingen Germany   +10 more
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Ocean Acidification Effect on the Iron-Gallic Acid Redox Interaction in Seawater

Frontiers in Marine Science, 2022
Ocean acidification impacts the iron (Fe) biogeochemistry both by its redox and its complexation reactions. This has a direct effect on the ecosystems due to Fe being an essential micronutrient.
Norma Pérez-Almeida, Aridane G. González, J. Magdalena Santana-Casiano, Melchor González-Dávila   +3 more
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Microbial iron(II) oxidation in littoral freshwater lake sediments: Competition between phototrophic vs. nitrate-reducing iron(II)-oxidizers

Frontiers in Microbiology, 2012
The distribution of neutrophilic microbial iron oxidation is mainly determined by local gradients of oxygen, light, nitrate and ferrous iron. In the anoxic top part of littoral freshwater lake sediments, nitrate-reducing and phototrophic Fe(II)-oxidizers
Emily Denise eMelton, Caroline eSchmidt, Andreas eKappler   +2 more
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Variation of iron redox kinetics and its relation with molecular composition of standard humic substances at circumneutral pH. [PDF]

PLoS ONE, 2017
Oxidation and reduction kinetics of iron (Fe) and proportion of steady-state Fe(II) concentration relative to total dissolved Fe (steady-state Fe(II) fraction) were investigated in the presence of various types of standard humic substances (HS) with ...
Ying Ping Lee, Manabu Fujii, Tetsuro Kikuchi, Koumei Terao, Chihiro Yoshimura   +4 more
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Identification and Characterization of MtoA: a Decaheme c-Type Cytochrome of the Neutrophilic Fe(II)-oxidizing Bacterium Sideroxydans lithotrophicus ES-1

Frontiers in Microbiology, 2012
The Gram-negative bacterium Sideroxydans lithotrophicus ES-1 (ES-1) grows on FeCO3 or FeS at oxic-anoxic interfaces at circumneutral pH, and the ES-1-mediated Fe(II) oxidation occurs extracellularly.
Juan eLiu, Zheming eWang, Sara M Belchik, Marcus J Edwards, Chongxuan eLiu, David W Kennedy, Eric D Merkley, Mary S Lipton, Julea N Butt, David J Richardson, John M Zachara, James K Fredrickson, Kevin M Rosso, Liang eShi   +13 more
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Fullerenol increases effectiveness of foliar iron fertilization in iron-deficient cucumber.

PLoS ONE, 2020
The water-soluble fullerenols are novel carbon-based nanomaterials with unique properties, which afford them with wide agricultural applications. Iron (Fe) deficiency is the most common and widespread nutrition disorder affecting plants.
Nikolai P Bityutskii, Kirill L Yakkonen, Kseniia A Lukina, Konstantin N Semenov   +3 more
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Fe(II) reduction of pyrolusite (β-MnO2) and secondary mineral evolution

Geochemical Transactions, 2017
Iron (Fe) and manganese (Mn) are the two most common redox-active elements in the Earth’s crust and are well known to influence mineral formation and dissolution, trace metal sequestration, and contaminant transformations in soils and sediments. Here, we
Michael V. Schaefer, Robert M. Handler, Michelle M. Scherer   +2 more
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Application of Poly(Ethyl Eugenyl Oxyacetate) Compounds as the Ions Carrier for Heavy Metals Separation and Separation of Fe and Ni in Ferronickel Using Liquid Membrane Transport Method

Indonesian Journal of Chemistry, 2022
Poly(ethyl eugenyl oxyacetate) (PEEOA) had been synthesized for separating heavy metals like Fe(III), Cr(III), Cu(II), Ni(II), Co(II), and Pb(II) by liquid membrane transport method.
La Harimu, Sabirin Matsjeh, Dwi Siswanta, Sri Juari Santosa, Muhamad Jalil Baari   +4 more
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