Structural properties of sub-nanometer metallic clusters

F Baletto - Journal of Physics: Condensed Matter, 2019 - iopscience.iop.org
At the nanoscale, the investigation of structural features becomes fundamental as we can
establish relationships between cluster geometries and their physicochemical properties …

Neural-network-enhanced evolutionary algorithm applied to supported metal nanoparticles

EL Kolsbjerg, AA Peterson, B Hammer - Physical Review B, 2018 - APS
We show that approximate structural relaxation with a neural network enables orders of
magnitude faster global optimization with an evolutionary algorithm in a density functional …

[HTML][HTML] Building machine learning force fields for nanoclusters

C Zeni, K Rossi, A Glielmo, Á Fekete… - The Journal of …, 2018 - pubs.aip.org
We assess Gaussian process (GP) regression as a technique to model interatomic forces in
metal nanoclusters by analyzing the performance of 2-body, 3-body, and many-body kernel …

[HTML][HTML] Thermodynamics of CuPt nanoalloys

K Rossi, LB Pártay, G Csányi, F Baletto - Scientific reports, 2018 - nature.com
The control of structural and chemical transitions in bimetallic nanoalloys at finite
temperatures is one of the challenges for their use in advanced applications. Comparing …

A genomic characterisation of monometallic nanoparticles

K Rossi, GG Asara, F Baletto - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
Because size and shape can affect the chemo-physical properties of nanoparticles, we
extend the use of geometrical descriptors to sequence a genome of monometallic …

The effect of size and composition on structural transitions in monometallic nanoparticles

K Rossi, L Pavan, YY Soon, F Baletto - The European Physical Journal B, 2018 - Springer
Predicting the morphological stability of nanoparticles is an essential step towards the
accurate modelling of their chemophysical properties. Here we investigate solid–solid …

Sampling Real‐Time Atomic Dynamics in Metal Nanoparticles by Combining Experiments, Simulations, and Machine Learning

M Cioni, M Delle Piane, D Polino, D Rapetti… - Advanced …, 2024 - Wiley Online Library
Even at low temperatures, metal nanoparticles (NPs) possess atomic dynamics that are key
for their properties but challenging to elucidate. Recent experimental advances allow …

Modification of O and CO binding on Pt nanoparticles due to electronic and structural effects of titania supports

T Ellaby, L Briquet, M Sarwar, D Thompsett… - The Journal of …, 2019 - pubs.aip.org
Metal oxide supports often play an active part in heterogeneous catalysis by moderating
both the structure and the electronic properties of the metallic catalyst particle. In order to …

Ideal versus real: simulated annealing of experimentally derived and geometric platinum nanoparticles

T Ellaby, J Aarons, A Varambhia, L Jones… - Journal of Physics …, 2018 - iopscience.iop.org
Platinum nanoparticles find significant use as catalysts in industrial applications such as fuel
cells. Research into their design has focussed heavily on nanoparticle size and shape as …

A DFT Study on the O2 Adsorption Properties of Supported PtNi Clusters

LO Paz-Borbón, F Baletto - Inorganics, 2017 - mdpi.com
We present a systematic study on the adsorption properties of molecular oxygen on Pt, Ni
and PtNi clusters previously deposited on MgO (100) by means of density functional theory …