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Updated: Jan 28, 2026

Layer-by-layer Collagen Deposition in Microfluidic Devices for Microtissue Stabilization
Published on: September 29, 2015
Under-cover stabilization and reactivity of a dense carbon monoxide layer on Pt(111)
Igor Píš1,2, Elena Magnano2,3, Silvia Nappini2
1Elettra - Sincrotrone Trieste S.C.p.A. , 34149 Basovizza , Trieste , Italy .
Abstract:
The space between a metal surface and a two-dimensional cover can be regarded as a nanoreactor, where confined molecule adsorption and surface reactions may occur. In this work, we report CO intercalation and reactivity between a graphene-hexagonal boron nitride (h-BNG) heterostructure and Pt(111). By employing high resolution X-ray photoemission spectroscopy (XPS) we demonstrate the molecular intercalation of the full h-BNG overlayer and stabilization of a dense R23.4°-13CO layer on Pt(111) under ultra-high vacuum at room temperature. We provide experimental evidence of a weakened CO-metal bond due to the confinement effects of the 2D cover. Temperature-programmed XPS results reveal that CO desorption is kinetically delayed and occurs at a higher temperature than on bare Pt(111). Moreover, CO partially reacts with the h-BNG layer to form boron-oxide species, which affect repeated CO intercalation. Finally, we found that the properties of the system towards interaction with CO can be considerably recovered using high temperature treatment.
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