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Correlation of electrochemical and investigations of iron poly-bipyridine coordination complexes for battery applications: impact of the anionic environment and the local geometries of the redox complexes on the electrochemical response.
Phys Chem Chem Phys
October 2020
Univ. Grenoble Alpes, CNRS, Grenoble INP, SIMAP, 38000 Grenoble, France.
Although they exhibit huge versatility, coordination complexes have been rarely investigated in the field of cathode materials for batteries. Despite their relatively high molecular mass, according to the nature of the metallic center and that of the ligand, the E° value and the electron transfer kinetics can be adjusted to develop a performant material compatible with the electrolyte. Here, we propose to investigate FeII poly-bipyridine complexes with a view to check the impact of the nature of the electrolyte as well as the influence of the distance between two redox centers when polymerized on the electrochemical response in battery conditions.
View Article and Find Full Text PDFFirst Exploratory Study on the Ageing of Rammed Earth Material.
Materials (Basel)
December 2014
University of Lyon, LTDS, CNRS, LGCB, Ecole Nationale des Travaux Publics de l'Etat, 69120 Vaulx-en-Velin, France.
Rammed earth (RE) is attracting renewed interest throughout the world thanks to its "green" characteristics in the context of sustainable building. In this study, the ageing effects on RE material are studied on the walls which have been constructed and exposed for 22 years to natural weathering. First, mechanical characteristics of the "old" walls were determined by two approaches: dynamic measurements on the walls; laboratory tests on specimens which had been cut from the walls.
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