“…Recently, gas-phase synthesis techniques based on low-pressure multi-magnetron gas aggregation sourceswhere one target acts as the source of the core material and the others as one or more sources coating materialshave enabled the fabrication of core-shell particles with tunable sizes and shapes. 23,24 Apart from the demanding high vacuum requirements, 25 these methods oen suffer from nucleation of pure-element byproducts, [24][25][26] and achieving uniformity in bimetallic morphology is challenging as the nanoparticles generated by non-equilibrium, fast kinetics processes that do not include an additional annealing process oen include random and unpredictable metastable phases. 27,28 Having control over size, composition, and morphology is desirable, as it enables investigations of the nanoparticle properties' effects on various applications.…”