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Chromium(VI) is more toxic than Cr(III): reality or myth?

International audience

Adsorption onto ACFC of mixture of pharmaceutical residues in water - experimental studies and modelling.

Published in Environmental technology

The presence of pharmaceutical residues in water resources is a critical issue for the production of drinking water, even though trace concentrations are mostly encountered. The adsorption of eight micropollutants, in mixture, onto a microporous activated carbon fibre cloth was investigated. For each compound, the kinetics and isotherms of adsorpti...

Bipolar Electrochemiluminescence Imaging: A Way to Investigate the Passivation of Silicon Surfaces

International audience

Low-temperature electrochemistry and spectroelectrochemistry for coordination compounds

This review is focused on the current state-of-the art of low-temperature electrochemistry and spectroelectrochemistry applied for coordination and organometallic compounds. From the first tentative steps in the 1960s to the present sophisticated spectroelectrochemical systems, low-temperature studies of redox reactions and coupled chemical process...

Photoinduced electrochemiluminescence at nanostructured hematite electrodes

In this article, we study the photoinduced electrochemiluminescence (PECL) of a luminol analog (L-012: 8-amino-5-chloro-2,3-dihydro-7-phenyl-pyrido[3,4-d]pyridazine-1,4-dione) on n-type hematite (-Fe 2 O 3) nanorod arrays deposited by hydrothermal synthesis on a transparent conducting oxide. We report that this material, when used as a photoanode,...

Contactless Bio‐Electrofunctionalization of Planar Micropores

The localized functionalization of pores and channels of micrometric and sub-micrometric sizes is a bottleneck in surface chemistry. A method for the regioselective chemical functionalization of planar pores is presented, that are, restrictions in microfluidic channels, here made of SiO2-coated silicon. This strategy, based on bipolar electrochemis...

Impact of a chemical-mechanical ex-situ aging on PFSA membranes for fuel cells

International audience

Impact of grape variety, berry maturity and size on the extractability of skin polyphenols during model wine-like macera...

Published in Journal of the science of food and agriculture

Skin cell walls modulate anthocyanin and tannin extraction from grape skins. However, relationships between the composition of alcohol-insoluble cell wall solids (AIS) and extraction are still unclear. Our objectives were to characterize the impact of variety, berry size and ripeness on skin AIS composition (polysaccharides, proteins) and polypheno...

The Impact of Chemical-Mechanical Ex Situ Aging on PFSA Membranes for Fuel Cells.

Published in Membranes

A proton-exchange membrane fuel cell (PEMFC) constitutes today one of the preferred technologies to promote hydrogen-based alternative energies. However, the large-scale deployment of PEMFCs is still hampered by insufficient durability and reliability. In particular, the degradation of the polyelectrolyte membrane, caused by harsh mechanical and ch...