Mostrando 41 - 60 Resultados de 44,763 Para Buscar '"fe"', tiempo de consulta: 0.26s Limitar resultados
  1. 41
    por Kawakami, Yuta, Bhullar, Navreet K.
    Publicado 2020
    “…Iron (Fe) and sulfur (S) are two essential elements for plants, whose interrelation is indispensable for numerous physiological processes. …”
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  2. 42
    “…Upon melting, the investigated alloys are observed to evolve towards two distinct Fe-rich and Fe-poor liquid compositions at pressures below 35-38 GPa. …”
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  3. 43
    “…The electron-bifurcating [FeFe] hydrogenase from Thermotoga maritima (HydABC) requires both NADH and ferredoxin to reduce protons generating hydrogen. …”
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  4. 44
    “…[Image: see text] The synthesis and electrochemical properties of tetranuclear [Fe(2)S(2)]-hydrogenase mimic species containing Pt(II), Ni(II), and Ru(II) complexes have been studied. …”
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  5. 45
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  7. 47
    “…Many studies have shown the close relationship between the beneficial action of soil and sedimentary humic acids on the growth of plants cultivated in calcareous soils and their ability to improve Fe plant nutrition. These results have been ascribed to the humic acid (HA) capability to improve Fe solubility and bioavailability. …”
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  8. 48
    “…These catalytic cofactors, which provide the site for N(2) binding and reduction, are, respectively, designated as FeMo‐cofactor, FeV‐cofactor, and FeFe‐cofactor. …”
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  9. 49
    por Wong, Chi Ho, Lortz, Rolf
    Publicado 2023
    “…This allows us to calculate theoretical T(c) values of LiFeAs, NaFeAs and FeSe as a function of pressure that correspond reasonably well to the experimental values. …”
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  10. 50
    “…The enzyme harbors an iron-containing cofactor, in which a low-spin iron is complexed by a pyridone, two CO and a cysteine sulfur. [Fe] hydrogenase is thus similar to [NiFe] and [FeFe] hydrogenases, in which a low-spin iron carbonyl complex, albeit in a dinuclear metal center, is also involved in H(2) activation. …”
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  11. 51
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  13. 53
    “…On the other hand, in mixed Fe, Sn–N–C catalysts, the presence of Sn improves the catalytic activity that is linked to a higher Fe–N(4) site density, whereas the possible synergistic interaction of Fe–N(4) and Sn–N(x) found no confirmation. …”
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  14. 54
    “…In this review, strategies for preparing various types of Fe-based MPNs are first summarized. We highlight the advantages of Fe-based MPNs under the different species of polyphenol ligands for their application in tumor treatments. …”
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  15. 55
    “…Doping with Fe boosts the electrocatalytic performance of NiOOH for the oxygen evolution reaction (OER). …”
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  16. 56
  17. 57
    “…PRINCIPAL FINDINGS: In this report, we describe an improved Escherichia coli-based expression system capable of producing 8–30 mg of purified, active [FeFe] hydrogenase per liter of culture, volumetric yields at least 10-fold greater than previously reported. …”
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  18. 58
    “…One of the 3,6-dimethyl-3,6-diaza­octane-1,8-dithiol­ate ligands is disordered, the major component having a refined occupancy of 0.873 (2). The FeFe distance is 3.0945 (3)Å and the Ni⋯Fe distance is 2.8505 (3) Å.…”
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  19. 59
  20. 60
    “…The unmatched catalytic turnover rates of [FeFe]-hydrogenases require an exceptionally efficient proton-transfer (PT) pathway to shuttle protons as substrates or products between bulk water and catalytic center. …”
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