https://doi.org/10.1051/epjap/2022210295
Regular Article
Growth of out-of-equilibrium PtPd nanoalloys
Molecular Cryo-Electron Microscopy Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
* e-mail: chloe.minnai@oist.jp
Received:
20
December
2021
Received in final form:
27
January
2022
Accepted:
11
February
2022
Published online: 1 June 2022
Bimetallic nanoparticles (BNPs) are receiving increasing attention due to their versatility in applications. We can distinguish between equilibrium growth, when the system is close to thermodynamic equilibrium at each stage of the growth, and out-of-equilibrium growth if the system explores high-energy structures in which it can eventually be kinetically trapped. Coalescence is a promising strategy to grow strongly out-of-equilibrium structures. Gas phase synthesis can be used to produce a wide variety of highly pure BNPs with tailored features. In this study, we show an experimental method to grow particle with out-of-equilibrium structures. An experimental overview on the approaches developed to control the degree of coalescence of the PtPd BNPs is presented.
© EDP Sciences, 2022
