People | Locations | Statistics |
---|---|---|
Naji, M. |
| |
Motta, Antonella |
| |
Aletan, Dirar |
| |
Mohamed, Tarek |
| |
Ertürk, Emre |
| |
Taccardi, Nicola |
| |
Kononenko, Denys |
| |
Petrov, R. H. | Madrid |
|
Alshaaer, Mazen | Brussels |
|
Bih, L. |
| |
Casati, R. |
| |
Muller, Hermance |
| |
Kočí, Jan | Prague |
|
Šuljagić, Marija |
| |
Kalteremidou, Kalliopi-Artemi | Brussels |
|
Azam, Siraj |
| |
Ospanova, Alyiya |
| |
Blanpain, Bart |
| |
Ali, M. A. |
| |
Popa, V. |
| |
Rančić, M. |
| |
Ollier, Nadège |
| |
Azevedo, Nuno Monteiro |
| |
Landes, Michael |
| |
Rignanese, Gian-Marco |
|
Granozzi, G.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2021Electrocatalytic Site Activity Enhancement via Orbital Overlap in A2MnRuO7(A = Dy3+, Ho3+, and Er3+) Pyrochlore Nanostructurescitations
- 2021Electrocatalytic site activity enhancement via orbital overlap in A 2 MnRuO 7 (A = Dy 3+ , Ho 3+ , and Er 3+ ) pyrochlore nanostructurescitations
- 2021Hybridization of Molecular and Graphene Materials for CO2Photocatalytic Reduction with Selectivity Controlcitations
- 2020One-pot synthesis of MoS2(1−x)Se2xon N-doped reduced graphene oxide: tailoring chemical and structural properties for photoenhanced hydrogen evolution reactioncitations
- 2019CeOx/TiO2 (Rutile) Nanocomposites for the Low-Temperature Dehydrogenation of Ethanol to Acetaldehyde: A Diffuse Reflectance Infrared Fourier Transform Spectroscopy-Mass Spectrometry Studycitations
- 2018Insights into the durability of Co-Fe spinel oxygen evolution electrocatalystscitations
- 2018AMnO 3 (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalystscitations
- 2018AMnO3 (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalystscitations
- 2018Hybrid organic/inorganic perovskite-polymer nanocomposites: toward the enhancement of structural and electrical propertiescitations
- 2017Indium selenide:An insight into electronic band structure and surface excitationscitations
- 2017Hybrid Organic/Inorganic Perovskite-Polymer Nanocomposites: Toward the Enhancement of Structural and Electrical Propertiescitations
- 2017Indium selenide: An insight into electronic band structure and surface excitationscitations
- 2011Top-down synthesis of multifunctional iron oxide nanoparticles formacrophage labelling and manipulationcitations
- 2010Strained c(4 x 2) CoO(100)-like monolayer on Pd(100): Experiment and theorycitations
Places of action
Organizations | Location | People |
---|
article
Insights into the durability of Co-Fe spinel oxygen evolution electrocatalysts
Abstract
<p>Elemental reorganisation and oxidation state changes of key active sites in Co-Fe spinels are investigated by in situ X-ray photoemission spectroscopy (XPS) and operando X-ray absorption spectroscopy (XAS) under oxygen evolution operating conditions. The combination of the two techniques allows identifying both the surface and bulk modifications on the oxides and relating them to the activity loss during extended cycling. The results show that Co-Fe spinels experience a surface irreversible phase evolution under oxygen evolution reaction (OER) conditions, resulting in the formation of an amorphous layer composed of new stable Co(iii) and Fe(iii) species. Accelerated ageing tests show that the durability, intended as the performance loss during cycling treatments, is not directly related to the structural/chemical stability of the spinels but to the new species formed at the surface due to the electrochemical work. Thus, the material that experienced more significant changes was also the most durable one, demonstrating that the understanding of the chemical and/or structural evolution of the materials during the catalytic process can be the key for the design of highly active and stable catalysts.</p>