CEA
CNRS
Univ. Paris-Saclay

Service de Physique de l'Etat Condensé

Materials & Nanophases Group: Structures, Characterization, Formulation, Applications and Recycling Processes
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Materials & Nanophases Group: Structures, Characterization, Formulation, Applications and Recycling Processes

Visible light diffracted by different lamellar periods of colloidal suspension of H3Sb3P2O14 in water (shortest => Blue; longest => red)
© JCP Gabriel, CEA.

Research

The group's current fields of interest are the following:

  1. Nanomaterials: In our laboratory, we synthesize and characterize low dimensionality materials (0, 1 and 2D), by all means necessary and available. These materials can often be exfoliated/dispersed in solution leading to some complex/colloidal fluids, exhibiting a very wide range of fascinating behaviors. In 2001, we discovered the first lamellar phase based on extended 2D nanosheets, and further confirmed it recently.

  1. Waste recycling: we are developing tools and processes for impoving various wastes recycling to enable more economically viable waste processing. Our efforts in this field started in 2013 and focussed at the time on an integrated microfluidic lab-on-chip that enables much faster exploration of multidimensional phase diagrams of complex fluids. Such lab-on-chip devices integrate various sensors as well as characterizations methods (such as FTIR in hollow waveguides, or X-ray fluorescence). This work was first funded, from 2013 util 2018, by the advanced ERC project REE-CYCLE (PI = Prof. Thomas Zemb) that aims at developing new rare earth extraction/recycling processes, at least 10 times more efficient that current liquid-liquid extraction processes, where JCG served as acting co-PI. Since then, within the joint CEA / NTU laboratory SCARCE, we have further developped the microfluidic platform as well as expanded our effort to other process steps in the recycling of e-waste (PCBs, plastics from e-wastes), such has:
    1. PCBs dismantling and associated electronic component sorting;
    2. physical method based purification;
    3. critical metals recovery and purification;
    4. liquid-liquid and Solid-liquid hydrometallurgical recovery processes  step development;
    5. use of supercritical fluid as a green solvent for e-waste recycling.

       

  2. Integration:
  • Thanks to the awarded ANR Project 4WATER (2018): we are elaborating new and cheap multi-target chemical sensor arrays for the continuous monitoring of groundwater quality. Using a microelectronic approach, the sensors will be based on functionalized nanomaterials and that will target various ions selected for their relevance as regards the quality of fresh water.
  • Thanks to the awarded ANR Project 2D-MEMBA (2021): we integrate nanomaterials for the making of less power-hungry membranes for the purification of water

 

 

Group members in both CEA and NTU:

Leader: Dr. HDR. Jean-Christophe P. Gabriel, Invited Professor @ NTU

Postdocs or Research Fellows:

PhD students:

  • Lina Cherni (2019-2022): Exfoliation of 2D materials and their applications
  • Yuemin Deng (2020-2023): Recycling of ewaste using Sc-CO2
  • Fabien Olivier (2020-2023, joint supervision with Prof. Charles Yang Chun from NTU): "Processes development using a microfluidic platform".

Project Officer:

V.I.A. CEA:

Interns: Looking for some, see below

Job openings:

We are currently hiring one research fellows (postdocs) in CEA/NTU SCARCE joint laboratory in Singapore. Look Here for more details and to apply (N.B. due to visa restrictions, local applicants are strongly encouraged). 

NB: Regarding a permanent job opening on Circular Economy in my group:

  • There is currently quite a bottleneck in the creation of new Researcher positions in the Fundamental Research Division of CEA. Hence, only top 1% level applicant can be considered and only then can different entry paths be considered/discussed. Do not hesitate to contact me for further discussions if you are in that category. 
  • There are also yearly funding opportunities for French University Professors to spend a sabbatical in the group. Feel free to contact JC Gabriel.
  • Former group members (Since 2013):

Postdocs or Research Fellows:

PhD Students

Interns

 
Materials & Nanophases Group: Structures, Characterization, Formulation, Applications and Recycling Processes

Members of the group in Singapore in front of the SCARCE lab (from Left to right: XD, NC, SC, JY, FO, MMK, THN, HB)

#3377 - Màj : 17/05/2022

 

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