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Synthesis of titanium oxides nanoparticles by laser pyrolysis. Study of elect...
The synthesis of titanium oxide nanoparticles by laser pyrolysis is studied in this work. This original gas phase technique is a versatile method which allows us to... -
Critical evaluation of the revised akdalaite model for ferrihydrite
International audience -
Effect of alkalis on the Fe oxidation state and local environment in peralkal...
International audience -
Role of clays in the thermal stabilization of nanocomposites : study at the s...
One way to increase thermal stability of polymers consists by mixing them with a few amount of clays (< 1 % w/w), spread at a nanometric scale. Such materials are... -
X-ray Absorption Spectroscopy Study of Solvation and Ion-Pairing in Aqueous G...
International audience -
Abiotic redox reactions of antimony and plutonium under anoxic conditions
Redox reactions of Sb(V) and Sb(III) with mackinawite (FeS) and of aqueous Pu(III) and Pu(V) with various Fe(II)-bearing minerals and Fe(III)-oxides have been... -
In situ analysis of anti-wear mechanism of zinc phosphates
Eco-friendly lubricant additives are of primary environmental and economical importance. Their design rely on our understanding of anti-wear additives such as the zinc... -
Physical techniques and catalyst preparation: Determining the interactions of...
International audience -
A Unique Structure of Ni(III) in LiNi0.3Co0.7O2 Without Jahn-Teller Distortion
We examined the oxidation state and atomic structures of Ni and Co in LiNi0.3Co0.7O2 and compared them with those of LiNiO2 and LiCoO2. The X-ray absorption near-edge... -
Biogéochimie structurale du zinc et du plomb par spectroscopie EXAFS : intera...
Le risque écotoxicologique des métaux présents dans le milieu naturel dépend beaucoup plus de leur statut physico-chimique que de leur concentration totale. Afin de... -
Crystal structure of nano-sized synthetic CSH
The main component of Portland cement is a nano-sized and poorly-ordered phase commonly referred as "Calcium Silicate Hydrate" (CSH). Although the nature of this phase... -
Dynamics, sources and speciation of trace elemetns in the Orge River watershe...
The aim of this work is to study the dynamics of trace elements (TE) in the water column of the Orge River. In the upstream part of the watershed, land uses consist... -
Following the Creation of Active Gold Nanocatalysts from Phosphine-Stabilized...
International audience -
Uranium speciation in the environment : study of opals from Nopal I (Mexique)...
Understanding the processes of uranium migration and sequestration is an important issue for the prediction of radionuclide retardation in the vicinity of uranium mine... -
Mid-IR luminescence of Dy3+ and Pr3+ doped Ga5Ge20Sb10S(Se)(65) bulk glasses ...
International audience -
EXAFS evidence of sorbed arsenic(V) and pharmacosiderite in a soil overlying ...
At Echassières (Allier, France), arsenic speciation was determined in a soil developed over a micaschist where Hercynian hydrothermal mineralization, including... -
X-ray absorption investigation of titanium oxynitride nanoparticles obtained ...
International audience -
Cationic ordering in oxide glasses: the example of transition elements.
Structural data have been obtained on the cation surroundings in multi-component silicate and borosilicate glasses using chemically selective spectroscopic and... -
EXAFS and Molecular Dynamics combined study of CaO-FeO-2SiO2 glass. New insig...
A new and coherent view of the local environment of Fe2+ in silicate glasses is derived from a combined study by EXAFS and Molecular Dynamics simulation. Iron is...
