Skip to Main content Skip to Navigation
Theses

Complexes diimine-dioxime de cobalt pour l'électrocatalyse de production d'hydrogène : étude mécanistique et optimisation par intégration d'un réservoir d'électron

Abstract : The production of H2 through sunlight-driven water splitting appears to be a promising solution for our future energy supply. Earth-abundant catalysts should be developed to replace platinum as water splitting catalysts. Bio-inspired cobalt diimine-dioxime complexes have emerged as one of the most versatile series of non-noble metal catalysts. In this work, the mechanism for H2 evolution mediated by this series of catalysts has been reinvestigated, and kinetic information have been determined thanks to recent advancements in electrochemical methodology. Their superior hydrogen evolution performance has been shown through comparative catalytic Tafel plots. Secondly, a synthetic route towards the incorporation of fullerene moieties, as electron reservoirs, in the vicinity of the catalytic center, has been developed. The resulting catalyst has shown improved catalytic activity and has been implemented in an operational H2-evoving photocathode based on organic semi-conductors.
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-01715452
Contributor : Abes Star :  Contact
Submitted on : Thursday, February 22, 2018 - 4:50:08 PM
Last modification on : Friday, July 10, 2020 - 7:58:46 AM
Long-term archiving on: : Wednesday, May 23, 2018 - 2:29:09 PM

File

SUN_2017_diffusion.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01715452, version 1

Collections

Citation

Dongyue Sun. Complexes diimine-dioxime de cobalt pour l'électrocatalyse de production d'hydrogène : étude mécanistique et optimisation par intégration d'un réservoir d'électron. Chimie inorganique. Université Grenoble Alpes, 2017. Français. ⟨NNT : 2017GREAV062⟩. ⟨tel-01715452⟩

Share

Metrics

Record views

254

Files downloads

389