spectral line breadth/ Fe oxidation stateLaNi 1-xFe xO 3perovskitesThe distributoin of oxidation states in perovskites of the type LaA 1 x B x O 3 (A and B transition metal ions) can be "tailored" by x variation. In paticular, in LaNiO 3 it has been shown that Fe substitution for ...
which leads to the dissolution of Fe minerals. Here, SOC is usually incompletely decomposed, resulting in the accumulation of SOC, especially short-chain fatty acids (Wu et al.2015), and the dissimilatory Fe (III) reduction process can be coupled with the oxidation of short-...
3), and variation in the Fe-oxidation state of the illite particles, with more Fe(III) present at shallower depths (35% in U1 and 17% in U3; Fig. 4a). Fig. 3: Transmission electron microscopy micrographs with selected area diffraction patterns and grain-size distribution. Samples with ...
Stabilization of unusual oxidation states under high oxygen pressures: A challenge for the solid state chemist Due to the increase of the covalency of chemical bond versus the oxidation state and the correlations with physical properties, the stabilization of the highest oxidation states of transition...
Compositional ratios, the influence and occupancy of iron at the β‐Ca(PO)lattice, oxidation state of iron in the composites are derived from analytical techniques involving XRD, FT‐IR, Raman, refinement of the powder X‐ray diffraction and X‐ray photoelectron spectroscopy. Iron exists in the...
It has also been suggested that the effect of Fe may be related to the oxidation state of Fe under reaction conditions [14], [22]. In the present study, promotion with Fe was investigated as a means to improve the performance of the La and V doubly promoted Rh/SiO2 catalysts for the...
, their products of oxidation and reduction of ferric oxyhydroxides; Eh–pH Pourbaix diagramsSynthèse des rouilles vertes par oxydation de Fe(OH)2, leurs produits d'oxydation et réduction des oxyhydroxydes ferriques ; diagrammes Eh–pH Written on invitation of the Editorial Board...
In present paper,the progresses in researches on high-temperature mechanical properties and antioxygenic properties are reviewed.The mechanisms of solid-solution strengthening,precipitation strengthening,ordering strengthening,dispersion strengthening and oxidation resistance of Fe-Al intermetallics are summarized an...
Tensile Strength and Fracture Morphology of Fe/Al Solid-State Bonding Interface Obtained by Forge Welding: Effect of Oxide Scale and Estimation of the Bond... H Yamagishi - 《Metallurgical & Materials Transactions A》 被引量: 0发表: 2022年 Thermal oxidation kinetics and oxide scale adhesion of ...
Haematite (α-Fe2O3) has been extensively investigated as a photoanode in photoelectrochemical water oxidation, but the product O2 has a low economic value. Here we expand its applications to the production of value-added chemicals and report its ability to act as a versatile and efficient oxyg...