Table 1 Summary of the investigated structures
From: Differentiating the structure of PtNi octahedral nanoparticles through combined ADF–EDX simulations
Name | Description | Number of Pt atoms | Number of Ni atoms | Composition |
|---|---|---|---|---|
(1) Pt shell | Pt monolayer shell with Ni core | 902 | 1834 | 32.97% Pt |
(2) Pt edges | Pt only at nanoparticle edges | 1074 | 1662 | 39.25% Pt |
(3) Pt hexapod | Pt seed crystal grown out in ⟨100⟩ directions to form a hexapod structure | 1040 | 1696 | 38.01% Pt |
(4) Pt hexapod and edges | As above, but with additional Pt decoration on the edges of the nanoparticle | 1118 | 1618 | 40.86% Pt |
(5) Pt hexapod, edges and core | As above, but with a Pt cuboctahedron in the core | 1064 | 1672 | 38.89% Pt |
(6) Ni facets | Ni concentrated at the centre of each facet and unconnected in the nanoparticle | 1136 | 1600 | 41.52% Pt |
(7) Alloy | Random mixture of Pt and Ni atoms | 1094 | 1642 | 39.99% Pt |