The origin of the high electrochemical activity of pseudo-amorphous iridium oxides

Autor: Marine Elmaalouf, Mateusz Odziomek, Silvia Duran, Maxime Gayrard, Mounib Bahri, Cédric Tard, Andrea Zitolo, Benedikt Lassalle-Kaiser, Jean-Yves Piquemal, Ovidiu Ersen, Cédric Boissière, Clément Sanchez, Marion Giraud, Marco Faustini, Jennifer Peron

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)

The origins of the superior catalytic activity of poorly crystallized Ir-based oxide material for the OER in acid is still under debate. Here, authors synthesize porous IrMo oxides to deconvolute the effect of Ir oxidation state from short-range orde

Externí odkaz: https://doaj.org/article/1db4843f1cc646cfb6faa3842b4824b4

Electronic Communication between Dithiolato-Bridged Diiron Carbonyl and S-Bridged Redox-Active Centres

Autor: Cédric Tard, Stacey J. Borg, Shirley A. Fairhurst, Christopher J. Pickett, Stephen P. Best

Publikováno v: Inorganics, Vol 7, Iss 3, p 37 (2019)

The catalytic potential of linked redox centres is exemplified by the catalytic site of [FeFe]-hydrogenases, which feature a diiron subsite linked by a cysteinyl S atom to a 4Fe4S cube. The investigation of systems possessing similarly-linked redox s

Externí odkaz: https://doaj.org/article/405bd860a79040e6aeee738055fc4e1c

Green synthesis of water splitting electrocatalysts: IrO2 nanocages via Pearson's chemistry

Autor: Marine Elmaalouf, Alexandre Da Silva, Silvia Duran, Cédric Tard, Miguel Comesaña-Hermo, Sarra Gam-Derouich, Valérie Briois, Damien Alloyeau, Marion Giraud, Jean-Yves Piquemal, Jennifer Peron

Publikováno v: Chemical Science. 13:11807-11816

Hierarchical IrO2 nanocages, easily synthesized in water at room temperature, are extremely active towards the oxygen evolution reaction. The formation mechanism is based on the difference in softness/hardness of the ions involved in the reaction.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9207b856ef57499ea34e6dd26f390c8d
https://doi.org/10.1039/d2sc03640a

The origin of the high electrochemical activity of pseudo-amorphous iridium oxides

Autor: Cédric Boissière, Marine Elmaalouf, Clément Sanchez, Mounib Bahri, Jean-Yves Piquemal, Mateusz Odziomek, Andrea Zitolo, Ovidiu Ersen, Benedikt Lassalle-Kaiser, Maxime Gayrard, Marion Giraud, Silvia Duran, Jennifer Peron, Marco Faustini, Cédric Tard

Publikováno v: Nature Communications
Nature Communications, 2021, 12, pp.3935. ⟨10.1038/s41467-021-24181-x⟩
Nature Communications, Nature Publishing Group, 2021, 12, pp.3935. ⟨10.1038/s41467-021-24181-x⟩
NATURE COMMUNICATIONS
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)

Combining high activity and stability, iridium oxide remains the gold standard material for the oxygen evolution reaction in acidic medium for green hydrogen production. The reasons for the higher electroactivity of amorphous iridium oxides compared

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60cc34fced2c084782e32327bfc16e79
https://doi.org/10.1038/s41467-021-24181-x

Traversing the Red–Green–Blue Color Spectrum in Rationally Designed Cupredoxins

Autor: Tyler B. J. Pinter, Vincent L. Pecoraro, Victor Sosa Alfaro, Aniruddha Deb, Karl J. Koebke, Nicolai Lehnert, Cédric Tard, James E. Penner-Hahn

Publikováno v: Journal of the American Chemical Society
Journal of the American Chemical Society, American Chemical Society, 2020, 142 (36), pp.15282-15294. ⟨10.1021/jacs.0c04757⟩
J Am Chem Soc

International audience; Blue copper proteins have a constrained Cu(II) geometry that has proven difficult to recapitulate outside native cupredoxin folds. Previous work has successfully designed green copper proteins which could be tuned blue using e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::599171896307782b8b37d22bffe654ba
https://hal.archives-ouvertes.fr/hal-02995240/document