Search Results - "Trcera, Nicolas"
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Fate of pristine TiO2 nanoparticles and aged paint-containing TiO2 nanoparticles in lettuce crop after foliar exposure
Published in Journal of hazardous materials (30-05-2014)“…•Pristine TiO2-NPs are internalized inside lettuce leaves after foliar exposure.•TiO2-NPs and microparticles from aged paint leachate are detected in plants…”
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Ce(III) and Ce(IV) (re)distribution and fractionation in a laterite profile from Madagascar: Insights from in situ XANES spectroscopy at the Ce LIII-edge
Published in Geochimica et cosmochimica acta (01-03-2015)“…The distribution of trivalent and tetravalent cerium, Ce(III) and Ce(IV) respectively, in a lateritic profile from Madagascar, has been characterized by…”
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3
Phonon effects on x-ray absorption and nuclear magnetic resonance spectroscopies
Published in Physical review. B, Condensed matter and materials physics (29-10-2015)“…In material sciences, spectroscopic approaches combining ab initio calculations with experiments arecommonly used to accurately analyze the experimental…”
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X-ray absorption spectroscopic investigation of the Ca and Mg environments in CO2-bearing silicate glasses
Published in Chemical geology (05-04-2019)“…Recent investigation showed that the CO2 solubility in silicate melts is strongly affected by the #Mg (MgO/MgO + CaO). CO2 solubility is decreasing with…”
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5
Redox state of iron during high-pressure serpentinite dehydration
Published in Contributions to mineralogy and petrology (01-04-2015)“…The Cerro del Almirez massif (Spain) represents a unique fragment of serpentinized oceanic lithosphere that has been first equilibrated in the antigorite…”
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Surface and Epitaxial Stresses on Supported Metal Clusters
Published in Nano letters (13-04-2016)“…Surface stress and energy are basic quantities in the Gibbsian formulation of the thermodynamic description of surfaces which is central in the formation and…”
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Comparative Investigation of Red and Orange Roman Tesserae: Role of Cu and Pb in Colour Formation
Published in Heritage (01-09-2022)“…This study aims at the characterisation of red and orange glass tesserae from the 4th-century Roman villa of Noheda (Spain). Due to the limited number of…”
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Structural study of Mg-bearing sodosilicate glasses by Raman spectroscopy
Published in Journal of Raman spectroscopy (01-04-2011)“…The presence of magnesium in glasses of geological, medical, and technological interests influences their physicochemical and durability properties. However,…”
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Experimental and theoretical study of the structural environment of magnesium in minerals and silicate glasses using X-ray absorption near-edge structure
Published in Physics and chemistry of minerals (01-05-2009)“…X-ray absorption spectroscopy at the Mg K -edge is used to obtain information on magnesium environment in minerals, silicate and alumino-silicate glasses…”
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10
Spectroscopic approach to chlorine local environment in aluminoborosilicate glasses
Published in Materials letters (01-01-2025)“…•Combined XAS and XPS can investigate the chlorine local environment in glasses.•Chlorine has multiple dissolution mechanisms in glasses.•Chlorine can replace…”
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Evaluation of selectivity of sequential extraction procedure applied to REE speciation in laterite
Published in Chemical geology (05-01-2021)“…Rare earth elements (REE) speciation in laterites are commonly estimated from sequential extraction procedure (SEP). In this study, the selectivity of a…”
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Structural role of titanium on slag properties
Published in Journal of the American Ceramic Society (01-01-2021)“…The presence of titanium in ground granulated blast‐furnace slags (GGBS) has been suspected to modify cement properties. This study provides the first evidence…”
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Iodine local environment in high pressure borosilicate glasses: An X-ray photoelectron spectroscopy and X-ray absorption spectroscopy investigation
Published in Journal of nuclear materials (01-09-2021)“…•Iodine is dissolved as iodide (I−) in high pressure borosilicate glasses.•Both alkali and alkaline-earth cations act as a charge compensator to I−…”
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14
Metal–silicate partitioning of sulphur, new experimental and thermodynamic constraints on planetary accretion
Published in Earth and planetary science letters (01-04-2014)“…Partitioning of sulphur between liquid Fe-rich metals and silicates (DSmet/sil) was investigated at temperatures from 1800 °C to 2400 °C, pressures from 2 to…”
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Assessing sulfur redox state and distribution in abyssal serpentinites using XANES spectroscopy
Published in Earth and planetary science letters (15-05-2017)“…Sulfur is one of the main redox sensitive and volatile elements involved in chemical transfers between earth surface and the deep mantle. At mid-oceanic…”
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Molecular structure of amorphous slags: An experimental and numerical approach
Published in Journal of non-crystalline solids (15-03-2021)“…This study presents a description of the structure of amorphous slags, with particular attention to the Ca local environment and the medium range arrangement…”
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Evolution of Fe redox state in serpentine during subduction
Published in Earth and planetary science letters (15-08-2014)“…Serpentinites are an important component of the oceanic lithosphere that formed at slow to ultra-slow spreading centers. Serpentine could thus be one of the…”
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Zr environment and nucleation role in aluminosilicate glasses
Published in Materials chemistry and physics (15-02-2015)“…We have investigated the role of ZrO2 on the nucleation/crystallization properties of aluminosilicate glasses. A comparison between Zr-free and Zr-bearing…”
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Chromium Adsorption Reveals a Persistent Hydroxylation of Vacuum-Annealed α‑Al2O3(0001)
Published in Journal of physical chemistry. C (05-12-2019)“…We address herein the question of the termination of the Al-terminated α-Al2O3(0001) surface. Over decades, various analyses made by different groups…”
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20
Chromium Adsorption Reveals a Persistent Hydroxylation of Vacuum-Annealed α-Al 2 O 3 (0001)
Published in Journal of physical chemistry. C (05-12-2019)“…We address herein the question of the termination of the Al-terminated α-Al 2 O 3 (0001) surface. Over decades, various analyses made by different groups…”
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