Dilute alloys based on Au, Ag, or Cu for efficient catalysis: from synthesis to active sites

JD Lee, JB Miller, AV Shneidman, L Sun… - Chemical …, 2022 - ACS Publications
The development of new catalyst materials for energy-efficient chemical synthesis is critical
as over 80% of industrial processes rely on catalysts, with many of the most energy-intensive …

Computational modeling of nanoparticle coalescence

P Grammatikopoulos, M Sowwan… - Advanced Theory and …, 2019 - Wiley Online Library
The coalescence of nanoclusters fabricated in the gas phase is a fundamental growth
mechanism determining cluster shapes, sizes, compositions, and structures, with resultant …

General trends in core–shell preferences for bimetallic nanoparticles

N Eom, ME Messing, J Johansson, K Deppert - ACS nano, 2021 - ACS Publications
Surface segregation phenomena dictate core–shell preference of bimetallic nanoparticles
and thus play a crucial role in the nanoparticle synthesis and applications. Although it is …

Gas-phase synthesis of trimetallic nanoparticles

JG Mattei, P Grammatikopoulos, J Zhao… - Chemistry of …, 2019 - ACS Publications
To this day, engineering nanoalloys beyond bimetallic compositions has scarcely been
within the scope of physical deposition methods due to the complex, nonequilibrium …

Gas-phase synthesis of nanoparticles: current application challenges and instrumentation development responses

P Grammatikopoulos, T Bouloumis… - Physical Chemistry …, 2023 - pubs.rsc.org
Nanoparticles constitute fundamental building blocks required in several fields of application
with current global importance. To fully exploit nanoparticle properties specifically …

Magnetron-sputtered copper nanoparticles: lost in gas aggregation and found by in situ X-ray scattering

J Kousal, A Shelemin, M Schwartzkopf, O Polonskyi… - Nanoscale, 2018 - pubs.rsc.org
Magnetron discharge in a cold buffer gas represents a liquid-free approach to the synthesis
of metal nanoparticles (NPs) with tailored structure, chemical composition and size. Despite …

Study the growth mechanism of AgNi nanoparticles by surface diffusion

M Gao, D Wen, G Cao, Y Zhang, Y Deng, J Hu - Applied Surface Science, 2023 - Elsevier
Quantifying the kinetic processes of the diffusion and growth of adsorbed atoms on the
surface of nanoparticles at the atomic level enables the control of nanomaterial structures …

Cu–Au nanoparticles produced by the aggregation of gas‐phase metal atoms for CO oxidation: Special Issue: Emerging Investigators

IV Chepkasov, VS Baidyshev, AA Golubnichiy… - …, 2022 - Wiley Online Library
Alloy nanoparticles (nanoalloys) are widely applied in heterogeneous catalysts, advanced
electrodes, biomaterials, and other areas. The properties of nanoalloys can be tuned to a …

Machine learning in magnetic materials

G Katsikas, C Sarafidis, J Kioseoglou - physica status solidi (b), 2021 - Wiley Online Library
The technological advancements of every era of human civilization owe themselves to the
materials available at the time. Despite the substantial interest in the discovery of novel …

Nanoscale charge transport and local surface potential distribution to probe the defect passivation in Cr-substituted earth abundant CZTS absorber layer

K Kaur, AH Chowdhury, Q Qiao, M Kumar - Journal of Alloys and …, 2021 - Elsevier
The non-stochiometric deviations in CZTS often results in certain detrimental point defects
that act as trap centers causing non-radiative recombination and potential fluctuations …