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Portail > Offres > Offre UMR6226-PIELEM-001 - Post-doctorat (H/F) - Développement d'une approche expérimentale combinant synthèse et études in situ pour l'élaboration de sulfures inorganiques pour l'énergie

Post-doctoral position (H/F) - Development of an experimental approach combining synthesis and in situ studies for the discovery of new inorganic sulfides for energy conversion

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : jeudi 22 avril 2021

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General information

Reference : UMR6226-PIELEM-001
Workplace : RENNES
Date of publication : Thursday, April 01, 2021
Type of Contract : FTC Scientist
Contract Period : 12 months
Expected date of employment : 1 July 2021
Proportion of work : Full time
Remuneration : The gross monthly salary will be 2600 to 3700 euros depending of the candidate's experience.
Desired level of education : PhD
Experience required : Indifferent

Missions

Solid-state synthesis in sealed silica tube is one of the most popular methods for the production of inorganic ceramics. Nevertheless, the determination of the best synthesis conditions is a trial-and-error process that generally requires many experiments, varying temperature and duration time. In situ studies of the successive chemical reactions occurring during the synthesis of a polycrystalline sample by thermal analysis, diffraction and spectroscopy techniques can be powerful tools to determine the reaction pathways, allowing to reduce considerably the number of trials and to optimize the synthesis conditions [1]. On the other hand, the use of soft synthesis conditions is an alternative approach for the stabilization of new inorganic compounds that cannot be obtained by high temperature synthesis route commonly used in solid-state chemistry [2]. This was largely demonstrated in tungsten cluster halide chemistry with the discovery of large number of new inorganic compounds with low nuclearity [3].
This post-doctoral position focuses on the synthesis and characterization of new inorganic 3d transition metal sulfides for energy conversion (magnetocaloric, thermoelectric, photovoltaic …). The aim is to develop an innovative experimental approach combining low temperature synthesis and in situ studies by thermal analysis, diffraction and/or spectroscopy techniques in order to discover new compounds and to determine their crystal structures and potential as materials for energy conversion.

[1] V. Ban, Y. Sadikin, M. Lange, N. Tumanov, Y. Filinchuk, R. Cerny, N. Casati, Anal. Chem. 2017, 89, 13176-13181; H. Kohlmann, Eur. J. Inorg. Chem. 2019, 4174-4180; L. Paradis-Fortin, P. Lemoine, C. Prestipino, V. Pavan Kumar, B. Raveau, V. Nassif, S. Cordier, E. Guilmeau, Chem. Mater. 2020, 32, 8993-9000.
[2] M.G. Kanatzidis, Inorg. Chem. 2017, 56, 3158-3173.
[3] M. Ströbele, A. Mos, H.-J. Meyer, Inorg. Chem. 2013, 52, 6951-6956; A. Mos, M. Ströbele, H.-J. Meyer, Z. Anorg. Allg. Chem. 2015, 641, 1722-1727; M. Ströbele, C. Castro, R.F. Fink, H.-J. Meyer, Angew. Chem. Int. Ed. 2016, 55, 4814-4817; M. Ströbele, H.-J. Meyer, Dalton Trans. 2019, 48, 1547-1561; M. Ströbele, H.-J. Meyer, Inorg. Chem. 2019, 58, 12867-12872.

Activities

The candidate will develop an experimental approach using the synthesis and characterization techniques and apparatus available at the institute, including many synthesis devices of bulk materials, TGA/DSC apparatus, single-crystal and powder X-ray diffractometers, SEM, TEM, PPMS, SQUID … (https://iscr.univ-rennes1.fr/csm-facilities, https://iscr.univ-rennes1.fr/iscr-instruments).

Skills

The candidate must have a PhD thesis in chemistry, solid-state chemistry, materials chemistry or materials science. She/he is be motivated by fundamental research, well organized, meticulous and interested in solid-state chemistry and physics. Particular attention will be paid to applications from candidate with experience on sulfide materials for energy conversion, spectroscopies, structural characterizations and/or theoretical modelling.

Work Context

This CNRS post-doctoral position will be conducted by Pierric Lemoine, permanent researcher at the Institute of Chemical Sciences of Rennes (https://iscr.univ-rennes1.fr/) in the Solid-state Chemistry and Materials team (https://iscr.univ-rennes1.fr/solid-state-chemistry-and-materials-csm). The candidate will certainly have to travel in France or abroad.

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