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Samuel Marre
CNRS Researcher
                                                                                                                                                                                                                                                                                          
Supercritical Fluids Group (group VII)
Institut de Chimie de la Matière Condensée de Bordeaux
(ICMCB)
87 Avenue du docteur Albert Schweitzer
33608 PESSAC Cedex

Phone: +0033 6 79 87 88 25
samuel.marre@icmcb.cnrs.fr

Currently: 2 PhD positions available !!!
I'm seeking for outstanding students to work on my ERC project "BIG MAC".
Check online: Offer 1 - Offer 2



Research interests
  • Supercritical Microfluidics ("Microfluidique Supercritique"): High pressure / High temperature microsystems for applications involving Supercritical Fluids
  • Geological Labs on Chip / CO2 geological storage
  • Multifunctional micro and nanomaterials synthesis and processing
  • Chemical Engineering
  • Chemistry in Supercritical Fluids
  • Hydrodynamics effects

Research news

Combining Microfluidics and FT-IR Spectroscopy: Towards spatially resolved Information on Chemical Processes  

Reaction Chemistry & Engineering, 2016, 1, 577-594. Link

This review outlines the combination of infrared spectroscopy and continuous microfluidic processes. FTIR
spectroscopy gives access to the microscopic chemical composition of samples, which can be correlated
with their macroscopic properties. This approach is widely used in chemistry or biology to get insights into
reactive media. Meanwhile, the miniaturization of flow chemical reactors offers many advantages such as
the small amount of products used or the versatility of the reactors. Coupling these two approaches creates
major opportunities for the analytical field, although it raises additional challenges. Emphasis is placed
on the most recent developments and limitations concerning the integration of infrared spectroscopy
techniques within microfluidic devices, while current applications and future opportunities will be
discussed.


Monitoring CO2 invasion processes at the pore scale using Geological Labs on Chips       

Lab Chip, 2016, 16, 3493-3502. Link

In order to investigate at the pore scale the mechanisms involved during CO2 injection in a water saturated
pore network, a series of displacement experiments is reported using high pressure micromodels
(geological labs on chip – GLoCs) working under real geological conditions (25 < T (°C) < 75 and 4.5 < p
(MPa) < 8). The experiments were focused on the influence of three experimental parameters: (i) the p, T
conditions, (ii) the injection flow rates and (iii) the pore network characteristics. By using on-chip optical
characterization and imaging approaches, the CO2 saturation curves as a function of either time or the
number of pore volume injected were determined. Three main mechanisms were observed during CO2
injection, namely, invasion, percolation and drying, which are discussed in this paper. Interestingly, besides
conventional mechanisms, two counterintuitive situations were observed during the invasion and drying
processes.


Implementation of in situ SAXS / WAXS characterization into silicon / glass microreactors

Lab Chip, 2015 Link

A successful implementation of in situ X-ray scattering analysis of synthetized particle materials in silicon/
glass microreactors is reported. Calcium carbonate (CaCO3) as a model material was precipitated inside
the microchannels through the counter-injection of two aqueous solutions, containing carbonate ions and
calcium ions, respectively. The synthesized calcite particles were analyzed in situ in aqueous media by
combining Small Angle X-ray Scattering (SAXS) and Wide Angle X-ray Scattering (WAXS) techniques at the
ESRF ID02 beam line. At high wavevector transfer, WAXS patterns clearly exhibit different scattering features:
broad scattering signals originating from the solvent and the glass lid of the chip, and narrow diffraction
peaks coming from CaCO3 particles precipitated rapidly inside the microchannel. At low wavevector
transfer, SAXS reveals the rhombohedral morphology of the calcite particles together with their micrometer
size without any strong background, neither from the chip nor from the water. This study demonstrates
that silicon/glass chips are potentially powerful tools for in situ SAXS/WAXS analysis and are promising for
studying the structure and morphology of materials in non-conventional conditions like geological materials
under high pressure and high temperature.



Microfluidic Supercritical Antisolvent continuous processing and direct Spray-coating of Poly(3-HexylThiophene) Nanoparticles for OFET devices

ChemComm, 2015 Link


Collaborations / contacts

Pr. Klavs Jensen, Head of Chemical Engineering Dept., Massachusetts Institute of Technology (MIT), USA
Dr. Cyril Aymonier, Head of the Supercritical fluid group at ICMCB-CNRS, Bordeaux, France.
Dr. Timothy Noël, TU/Eindhoven, The Netherlands
Dr. Simon Kuhn, KU Leuven, Belgium
Dr. Yves Garrabos, Supercritical fluid group at ICMCB-CNRS, Bordeaux, France.
Pr. Ryan L. Hartman, New York University, NY, USA.
Pr. Mike T. Timko, Worcester Polytechnic Institute, MA, USA.
Pr. Jongnam Park, Nano Materials Lab, Ulsan National Institute of Science and Technology, Korea.
Dr. Mathieu Pucheault, Institut des Sciences Moléculaires (ISM), Bordeaux, France.
Dr. Emmanuel Mignard, Laboratory of the Future - Rhodia / CNRS / Université Bordeaux I, France
Dr. Adeline Perro, Université Bordeaux I, France
Pr. Francois Cansell, Institut Polytechnique de Bordeaux (IPB), France