09/04/2021

PhD in Marseille, France: synthesis and electrochemical study of bio-inspired Ni complexes for efficient H2 oxidation and production

This job offer has expired


  • ORGANISATION/COMPANY
    CNRS / AMU
  • RESEARCH FIELD
    ChemistryHomogeneous catalysis
    ChemistryInorganic chemistry
    ChemistryMolecular chemistry
    ChemistryPhysical chemistry
  • RESEARCHER PROFILE
    First Stage Researcher (R1)
  • APPLICATION DEADLINE
    09/05/2021 21:00 - Europe/London
  • LOCATION
    France › Marseille
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    01/10/2021

OFFER DESCRIPTION

The performance of a catalyst is always considered in terms of speed (turnover frequency, TOF). Reversible catalysts are desirable, because they do not dissipate the chemical or electrical energy that is input to drive the transformation. In particular, understanding what makes some catalyst “reversible” is crucial in the solar fuels field, where efficient and cheap catalysts, based on transition metals, are needed to store in the form of chemicals (such as dihydrogen) the energy collected from intermittent sources1,2. Reversible catalysts are common in Nature: The enzymes hydrogenases, which produce and oxidized H2, are reversible catalysts. However, it has been difficult to characterize experimentally and to engineer in molecular catalysts3. Leger and coworkers have recently proposed the first kinetic models that allow the use of electrochemical methods to decipher the catalytic mechanism of synthetic, bidirectional redox catalysts, and to understand what makes them function (ir)reversibly4. This new methodology will be applied to a series of synthetic bio-inspired nickel complexes that have the rare property of functioning reversibly for the conversion between protons and H23. The target complexes will be synthetized and chemically modified to help their attachment to electrodes. Upon a proper evaluation as molecular electrocatalysts, the systems will be investigated in deep using dynamic electrochemistry to get insight into their reaction mechanism. This synergic project will involve both the bioinorganic chemists at iSm2 5,6 and the electrochemists at BIP1-4.

References

1. Fourmond, V., Plumeré, N., Léger, C. Reversible catalysis. Nat. Rev. Chem. (in press) (2021). doi: 10.1038/s41570-021-00268-3

2. Fourmond, V., Léger, C. & Plumeré et al, N., Nat. Cat. 4, 251–258 (2021).

3. Dutta, A., Appel, A. M. & Shaw, W. J. Nat. Rev. Chem. 2, 244–252 (2018)

4. Fourmond, V., Wiedner, E. S., Shaw, W. J., Léger, C. J. Am. Chem. Soc. 141, 11269–11285 (2019). doi: 10.1021/jacs.9b04854

5. Orio M. et al, Dalton Trans., 2020, 49, 5064-5073.

6. M., Orio, M., Artero, V., Hardré, R. et al, Chem. Comm., 2020, 56, 11106-11109.

More Information

Benefits

3-year fellowship (salary of €1400 net / month).

Selection process

The applicants must first contact christophe.leger@imm.cnrs.fr by email, with an application letter, a transcript of records and the contact of one or two previous supervisors. 
Depending on which funding scheme applies, the short-listed applicant may be interviewed by jury, in English, probably between the 14th and 18th of June.

Offer Requirements

Skills/Qualifications

Master in chemistry, with a background in coordination chemistry, organic synthesis and/or electrochemistry

 

Work location(s)
1 position(s) available at
BIP UMR7281 CNRS/AMU
France
Please select
Marseille
13009
31 chemin J. Aiguier

EURAXESS offer ID: 625916

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