Unraveling the synergistic effects of Cu-Ag tandem catalysts during electrochemical CO2 reduction using nanofocused X-ray probes

ML Frisch, L Wu, C Atlan, Z Ren, M Han… - Nature …, 2023 - nature.com
Controlling the selectivity of the electrocatalytic reduction of carbon dioxide into value-added
chemicals continues to be a major challenge. Bulk and surface lattice strain in …

Defects and nanostrain gradients control phase transition mechanisms in single crystal high-voltage lithium spinel

I Martens, N Vostrov, M Mirolo, SJ Leake… - Nature …, 2023 - nature.com
Lithiation dynamics and phase transition mechanisms in most battery cathode materials
remain poorly understood, because of the challenge in differentiating inter-and intra-particle …

PhaseGAN: a deep-learning phase-retrieval approach for unpaired datasets

Y Zhang, M Andreas Noack, P Vagovic, K Fezzaa… - Optics express, 2021 - opg.optica.org
Phase retrieval approaches based on deep learning (DL) provide a framework to obtain
phase information from an intensity hologram or diffraction pattern in a robust manner and in …

Imaging the facet surface strain state of supported multi-faceted Pt nanoparticles during reaction

M Dupraz, N Li, J Carnis, L Wu, S Labat… - Nature …, 2022 - nature.com
Nanostructures with specific crystallographic planes display distinctive physico-chemical
properties because of their unique atomic arrangements, resulting in widespread …

Twin boundary migration in an individual platinum nanocrystal during catalytic CO oxidation

J Carnis, AR Kshirsagar, L Wu, M Dupraz… - Nature …, 2021 - nature.com
At the nanoscale, elastic strain and crystal defects largely influence the properties and
functionalities of materials. The ability to predict the structural evolution of catalytic …

Imaging Voids and Defects Inside Li-Ion Cathode LiNi0.6Mn0.2Co0.2O2 Single Crystals

I Martens, V Vanpeene, N Vostrov… - … Applied Materials & …, 2023 - ACS Publications
Li-ion battery cathode active materials obtained from different sources or preparation
methods often exhibit broadly divergent performance and stability despite no obvious …

Imaging the strain evolution of a platinum nanoparticle under electrochemical control

C Atlan, C Chatelier, I Martens, M Dupraz, A Viola… - Nature Materials, 2023 - nature.com
Surface strain is widely employed in gas phase catalysis and electrocatalysis to control the
binding energies of adsorbates on active sites. However, in situ or operando strain …

Building practical descriptors for defect engineering of electrocatalytic materials

R Chattot, P Bordet, I Martens, J Drnec, L Dubau… - ACS …, 2020 - ACS Publications
Defect engineering has recently gained considerable interest in electrocatalysis by
extending the portfolio of materials' design strategies toward more efficient and sustainable …

Three-dimensional strain dynamics govern the hysteresis in heterogeneous catalysis

AR Passos, A Rochet, LM Manente, AF Suzana… - Nature …, 2020 - nature.com
Understanding catalysts strain dynamic behaviours is crucial for the development of cost-
effective, efficient, stable and long-lasting catalysts. Here, we reveal in situ three …

Bragg coherent diffractive imaging for defects analysis: Principles, applications, and challenges

Y Sun, A Singer - Chemical Physics Reviews, 2024 - pubs.aip.org
The ability to visualize crystalline defects and lattice distortions at the nanoscale holds
profound implications for enhancing material properties and optimizing their design. Bragg …