| 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 |
|
Morata, Alex
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024A self-assembled multiphasic thin film as an oxygen electrode for enhanced durability in reversible solid oxide cellscitations
- 2022Ion Intercalation in Lanthanum Strontium Ferrite for Aqueous Electrochemical Energy Storage Devicescitations
- 2022Nanostructured La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3 -Ce 0.8 Sm 0.2 O 2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applicationscitations
- 2022On the thermoelectric properties of Nb-doped SrTiO3 epitaxial thin filmscitations
- 2022Functional thin films as cathode/electrolyte interlayers: a strategy to enhance the performance and durability of solid oxide fuel cellscitations
- 2022On the thermoelectric properties of Nb-doped SrTiO 3 epitaxial thin filmscitations
- 2022Nanostructured La0.75Sr0.25Cr0.5Mn0.5O3–Ce0.8Sm 0.2O2 Heterointerfaces as All-Ceramic Functional Layers for Solid Oxide Fuel Cell Applicationscitations
- 2021Direct Measurement of Oxygen Mass Transport at the Nanoscalecitations
- 2021A high-entropy manganite in an ordered nanocomposite for long-term application in solid oxide cells
- 20213D Printing of Porous-Dense-Porous 8YSZ Supports for Solid Oxide Cells Applicationscitations
- 2021Transitioning from Si to SiGe Nanowires as Thermoelectric Material in Silicon-Based Microgenerators
- 2019All-silicon thermoelectric micro/nanogenerator including a heat exchanger for harvesting applications
- 2019Enhanced thermoelectric figure of merit of individual Si nanowires with ultralow contact resistances
- 2019Engineering Transport in Manganites by Tuning Local Nonstoichiometry in Grain Boundariescitations
- 2017Multi-scale analysis of the diffusion barrier layer of gadolinia-doped ceria in a solid oxide fuel cell operated in a stack for 3000 hcitations
- 2014Full ceramic micro solid oxide fuel cells: Towards more reliable MEMS power generators operating at high temperaturescitations
Places of action
| Organizations | Location | People |
|---|
article
Direct Measurement of Oxygen Mass Transport at the Nanoscale
Abstract
Tuning oxygen mass transport properties at the nanoscale offers a promising approach for developing high performing energy materials. A number of strategies for engineering interfaces with enhanced oxygen diffusivity and surface exchange have been proposed. However, the origin and the magnitude of such local effects remain largely undisclosed to date due to the lack of direct measurement tools with sufficient resolution. In this work, atom probe tomography with sub-nanometer resolution is used to study oxygen mass transport on oxygen-isotope exchanged thin films of lanthanum chromite. A direct 3D visualization of nanoscaled highly conducting oxygen incorporation pathways along grain boundaries, with reliable quantification of the oxygen kinetic parameters and correlative link to local chemistries, is presented. Combined with finite element simulations of the exact nanostructure, isotope exchange-atom probe tomography allowed quantifying an enhancement in the grain boundary oxygen diffusivity and in the surface exchange coefficient of lanthanum chromite of about 4 and 3 orders of magnitude, respectively, compared to the bulk. This remarkable increase of the oxygen kinetics in an interface-dominated material is unambiguously attributed to grain boundary conduction highways thanks to the use of a powerful technique that can be straightforwardly extended to the study of currently inaccessible multiple nanoscale mass transport phenomena.