Results 31 to 40 of about 14,146 (192)
Clio Arqueológica, 2020 Neste trabalho, a composição química e espécies ferruginosas de filmes pictóricos de pinturas rupestres do sítio arqueológico Letreiro da Pedra Riscada (Domingos Mourão, Piauí, Brasil) foram investigadas por fluorescência de raios X e espectroscopia ...
José de Jesus Nunes Júnior +1 more
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Study of the Effect of Quenching on Microstructural and Magnetic Properties of Cu-Doped Mg-Ferrite
Advances in Condensed Matter Physics, 2022 Mg1-xCuxFe2O4 (x = 0.0–0.5) was prepared by the double sintering ceramic method, which sintered at 1100°C and 1200°C for 3 hours and investigated for structural, microstructural, and magnetic properties as a function of the Cu content and cooling process.
Apurba Poddar +4 more
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, 2010 This chapter aims to introduce the Mössbauer effect and hyperfine structure of Mössbauer spectroscopy. Owing to its excellent energy resolution, it can provide detailed structural data of metal sites when applying to metalloproteomics studies.
Chunying Chen, Yang Qiu
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, 2014 International audienceGiven its ability to detect all iron centers, to identify their electronic structures, and to quantify the ratios of the different iron forms present in a sample, many researchers turn to Mössbauer spectroscopy when wanting to ...
Blondin, Geneviève +7 more
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Spinels in meteorites: Observation using Mössbauer spectroscopy [PDF]
, 2019 In this mini-review, we consider the results of various meteorite studies using Mössbauer spectroscopy with a high velocity resolution in order to reveal the minor spectral components related to spinels such as chromite, hercynite, magnesiochromite ...
Chukin, A. V. +7 more
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57Fe Mössbauer spectroscopy investigation of La0.7Ca0.3Mn0.5Fe0.5O3
Results in Physics, 2016 A La0.7Ca0.3Mn0.5Fe0.5O3 (LCMFO) ceramic sample was produced using conventional solid-state reactions. According to the X-ray diffraction data, the obtained sample has an orthorhombic space group Pnma (a = 5.482(2) Å, b = 7.739(3) Å, c = 5.446(3) Å ...
V.S. Zakhvalinskii +6 more
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Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties
Advanced Functional Materials, EarlyView.Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon +7 more
wiley +1 more source
Estudo de complexos modelo bio-inorganicos por espectroscopia Mossbauer57Fe [PDF]
, 1990 Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Ciencias Fisicas e MatematicasUma investigação sistemática da família de complexos FeII(TIM)(L)2, onde L são ligantes como (l - hist), py, NH3, CH3CN, im, (nim), NO2 e CN, é ...
Melo, Mauricio Antonio Custodio de
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Suppressing Surface Degradation in Na‐Rich Prussian Blue Cathodes via Liquid‐Phase Dehydration
Advanced Materials, EarlyView.Gas bubbling in a liquid medium lowers the local water vapor pressure and continuously removes desorbed water, enabling effective dehydration of Prussian Blue without inducing surface oxidation. This interfacial mass transfer‐driven process stabilizes the surface chemistry and improves electrochemical performance, providing a strategy for handling ...
Seunghye Jang +8 more
wiley +1 more source
, 2014 Amorphous ferric arsenate (AFA, FeAsO4•xH2O) is an important As precipitate in a range of oxic As-rich environments, especially acidic sulfide-bearing mine wastes. Its structure has been proposed to consist of small polymers of single corner-sharing FeO6
Mikutta, Christian +2 more
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