We have characterized the structures of two kinds of catalytic nanoparticles of Pt and Pt–Ru, using anomalous small-angle X-ray scattering (ASAXS), anomalous wide-angle X-ray scattering (AWAXS) and extended X-ray absorption fine structure (EXAFS) spectroscopy. With several X-ray energies near the Pt LIII edge, the AWAXS data reveal a face-centered cubic (f.c.c.) crystalline structure for Pt nan...

A high-throughput pulsed laser ablation (HT-PLA) system was developed to rapidly prepare uniformly sized singleand multi-metallic nanoparticles with different diameters for catalytic applications. Catalytic materials containing Rh, bimetallic Rh/Pt and trimetallic Rh/Pt/Au nanoparticles were synthesized from targets prepared by blending, tableting and sintering powders of pure metals, and by di...

We propose the use of bimetallic non-alloyed nanoparticles (BNNPs) to improve the broadband optical absorption of thin amorphous silicon substrates. Isolated bimetallic NPs with uniform size distribution on glass and silicon are obtained by depositing a 10-nm Au film and annealing it at 600°C; this is followed by an 8-nm Ag film annealed at 400°C. We experimentally demonstrate that the depositi...

Correction for ‘Highly homogeneous bimetallic core–shell Au@Ag nanoparticles with embedded internal standard fabrication using a microreactor reliable quantitative SERS detection’ by Suyang Li et al. , Mater. Chem. Front. 2023, https://doi.org/10.1039/d2qm01202b.

Bimetallic nanoparticles have gained vivid attention due to their unique and synergistic properties. They can be used in fields such as solar cells, optics, sensing, well medicine. The generation of bimetallic nanoparticles, containing oxide phases both magnetic X-ray attenuating metals for bioimaging applications has been challenging with traditional chemical synthesis methods. An alternative ...

Monatomic (Fe, Co) and bimetallic (FePt and CoPt) nanoparticles were prepared by exploiting the self-organization of precursor loaded reverse micelles. Achievements and limitations of the preparation approach are critically discussed. We show that self-assembled metallic nanoparticles can be prepared with diameters d = 2-12 nm and interparticle distances D = 20-140 nm on various substrates. Str...

Physical synthesis employing magnetron sputtering and gas aggregation in a modified commercial source has been coupled with size-selection and ion soft landing to prepare bare nanoparticles on surfaces with controlled coverage, size, composition, and morphology. Employing atomic force microscopy (AFM) and scanning electron microscopy (SEM), it is demonstrated that the size and coverage of nanop...

• Hybrid sputtering/gas agglomeration system produces flower-like Zn-Fe NPs. Fast, simple and reliable method to produce bimetallic nanoparticles. Molecular dynamics shows the growth mechanisms of particles. Galvanic couple between Zn –Fe protects Fe from oxidation. Bimetallic nanoparticles have gained attention in last decade due their unusual characteristics compared monometallic counterparts...