Sophie Carenco | CNRS Researcher at Sorbonne University

(Nano)Chemistry, inside and out

My research is centered on the design, synthesis and applications of nanoparticles using the tools of molecular and materials chemistry.

News and highlights

June 21, 2019: Bandgap of oxysulfide nanoparticles

Just accepted at Chem. Mater., our study of the bandgap of (Gd,Ce)2O2S nanoparticles, combining synthesis, DFT, PDF, UPS, photoluminescence and more. This is a collaboration with the teams of A. Gauzzi and L. Paulatto (IMPMC), C. Géantet (IRCELyon) P. Lecante (CEMES) and also many contributors from LCMCP.

With: Clément, Minh, Capucine, Mohamed, Estelle, Corinne, Clément, Sophie

ChemMater2019

June 20, 2019: Post-doc position opening

There is an opening to join the group as a post-doctoral fellow, from September 2019, on the "Colloidal catalysis under soft reaction conditions for the activation of small molecules". The project is in the scope of ERC NanoFLP.

The candidate should have a strong background in catalysis, homogeneous or heterogeneous, using nanoparticles or organometallic complexes. He/she should have a background in inorganic chemistry and materials science.

Description here. Application: CV and Cover letter.

Post-doc position

Lauréats ERC : Adressons-nous aux décideurs et aux politiques

Le 18 juin 2019 est paru une tribune co-signée par 177 lauréats ERC du CNRS. Intitulée « Le CNRS fêtera-t-il ces 100 ans ? », elle remet en cause la politique de recrutement et de financement du CNRS, piloté par Antoine Petit.

Je fais partie des lauréats CNRS de l’ERC, mais je n’ai pas signé cette tribune. Voici pourquoi.

Tribune

June 18, 2019: Copper and NHCs

In this study, we explored a direct route to copper nanoparticles stabilized by NHC ligands. We also investigated the reaction mechanism to explain the stoichiometry of the NHC-borane precursor.

This work was done in collaboration with Louis Fensterbank's team at IPCM and Dimitri Mercier at Chimie Paristech. Read the paper.

With: Xavier, François, Corinne, David, Clément, Sophie...

ChemEurJ-Cu

June 18-24, 2019: Cells and nanoparticles at SMIS beamline

In the context of our Safer-by-design Nanoparticles project, we are analyzing cells exposed to sub-lethal doses of gadolinium oxysulfide nanoparticles by infra-red microscopy. and performing a PCA analysis of hundreds of spectra using Quasar. We hope to understand more about potential toxicity of the nanoparticles, thanks to Christophe Sandt for his expertise and help!

With: Minh, Corinne, Sophie

SMIS2019

June 11-14, 2019: XAS school

This week, Kim and Alexy are participating to the SAX19 school in Montpellier.

They are learning theory and data analysis of XANES, EXAFS, and beyond.

With: Kim, Alexy

SAX19

June 5, 2019: Article on nano-Magnéli

This study, led by David Portehault, deals with "differential reactivity of rutile and anatase TiO2 nanoparticles: synthesis and surface states of nanoparticles of mixed valence Magnéli oxides." NAP-XPS was used to characterize the surface of the nanoparticles exposed to gases.

ChemEurJ2019-1

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Featured Results

Copper and NHC...

... finally united! This article presents the first report of NHC-stabilized colloidal copper nanoparticles. Using a oxygen-free route, we formed, in one step, trully metallic copper nanoparticles stabilized by NHC ligands. The secret of this good match? An easy-to-reduce [CuMes]n precursor with a more stable NHC-borane adduct.

While XPS shows the NHC coordinated to the copper surface, a detailed study using radical traps proposes elementary steps for the reaction mechanism.

Read the paper.

ChemEurJ2019

Radical or no radical?

Serendipity was key for the team entering in the field of silane activation! We found that KC8 acts as a catalyst for the dismutation of PMHS, forming methylsilane. A detailed mechanistic investigation shows that the initation of the reaction goes through a radical pathway. Read the paper.

ChemCatChem2019

Burn them all! (i.e. how to get rid of your ligand buddy)

Got a great colloidal synthesis for cute nanoplates, but annoyed by the d*mn ligands that stick around? Just burn them all! under proper conditions of course. Here, we unravel the decomposition path of oleates around metal oxysulfide nanoparticles during inert and oxidizing thermal treatment. Read the paper.

ChemNanoMat2019

Tune your oxysulfide magnet

In this article, we decipher the magnetic properties of (Gd,Ce)2O2S nanoplates prepared by colloidal solution. We show they are directly tuned by the Gd:Ce ratio in the solid solution. Another success for our Labex Matisse project, in collaboration with our colleagues at IMPMC!

Read the paper | EurJIC Cover profile.

EurJIc2019

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Contact information

Sorbonne Université - LCMCP
Tour 34-44, bureau 412, CC174
4 Place Jussieu
75252 Paris Cedex 05, FRANCE
sophie.carenco*sorbonne-universite.fr (* is @)
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