Abstract
With the goal to delevop the fabrication of a new type of Pt-nanoparticle carbon-support electrocatalyst, we investigate the carbon embedding of Pt cluster superlattices grown on the moiré of a monolayer of hexagonal boron nitride (h-BN) on Ir(111). Our combined scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) study establishes conformal C embedding of the Pt clusters on h-BN/Ir(111) without deterioration of superlattice order, preferential and strong binding of the embedding carbon to the Pt clusters, and upon annealing the formation of a homogeneous amorphous carbon (a-C) matrix. There are indications that while the a-C matrix and the Pt clusters bind strongly to each other, upon annealing both weaken their binding to h-BN.
| Original language | English |
|---|---|
| Pages (from-to) | 23435-23444 |
| Number of pages | 10 |
| Journal | The Journal of physical chemistry C |
| Volume | 125 |
| Issue number | 42 |
| Early online date | 19 Oct 2021 |
| DOIs | |
| Publication status | Published - 28 Oct 2021 |
Keywords
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