Unknown

Dataset Information

0

Mechanism of CO Intercalation through the Graphene/Ni(111) Interface and Effect of Doping.

ABSTRACT: Molecules intercalate at the graphene/metal interface even though defect-free graphene is impermeable to any atomic and molecular species in the gas and liquid phase, except hydrogen. The mechanism of molecular intercalation is still a big open question. In this Letter, by means of a combined experimental (STM, XPS, and LEED) and theoretical (DFT) study, we present a proof of how CO molecules succeed in permeating the graphene layer and get into the confined zone between graphene and the Ni(111) surface. The presence of N-dopants in the graphene layer is found to highly facilitate the permeation process, reducing the CO threshold pressure by more than one order of magnitude, through the stabilization of multiatomic vacancy defects that are the open doors to the bidimensional nanospace, with crucial implications for the catalysis under cover and for the graphene-based electrochemistry.

SUBMITTER: Perilli D 

PROVIDER: S-EPMC7735739 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Mechanism of CO Intercalation through the Graphene/Ni(111) Interface and Effect of Doping.

Perilli Daniele D   Fiori Sara S   Panighel Mirco M   Liu Hongsheng H   Cepek Cinzia C   Peressi Maria M   Comelli Giovanni G   Africh Cristina C   Di Valentin Cristiana C  

The journal of physical chemistry letters 20201006 20

Molecules intercalate at the graphene/metal interface even though defect-free graphene is impermeable to any atomic and molecular species in the gas and liquid phase, except hydrogen. The mechanism of molecular intercalation is still a big open question. In this Letter, by means of a combined experimental (STM, XPS, and LEED) and theoretical (DFT) study, we present a proof of how CO molecules succeed in permeating the graphene layer and get into the confined zone between graphene and the Ni(111)  ...[more]

Similar Datasets

Unknown Quasi-freestanding graphene on Ni(111) by Cs intercalation.
| S-EPMC4880887 | biostudies-other
Unknown Intercalation of Mn in graphene/Cu(111) interface: insights to the electronic and magnetic properties from theory.
| S-EPMC7729943 | biostudies-literature
Unknown Elucidating the Mechanism of Large Phosphate Molecule Intercalation Through Graphene-Substrate Heterointerfaces.
| S-EPMC10571006 | biostudies-literature
Unknown Defect controlled magnetism in FeP/graphene/Ni(111).
| S-EPMC3847699 | biostudies-other
Unknown Tuning adlayer-substrate interactions of graphene/h-BN heterostructures on Cu(111)-Ni and Ni(111)-Cu surface alloys.
| S-EPMC8693814 | biostudies-literature
Unknown Role of Precursor Carbides for Graphene Growth on Ni(111).
| S-EPMC5805774 | biostudies-literature
Unknown Doping effect in graphene-graphene oxide interlayer.
| S-EPMC7237491 | biostudies-literature
Unknown Decomposition of SO<sub>2</sub> on Ni(111) Surface and the Effect of Metal Doping: A First-Principles Study.
| S-EPMC10536407 | biostudies-literature
Unknown Tuneable Giant Magnetocaloric Effect in (Mn,Fe)₂(P,Si) Materials by Co-B and Ni-B Co-Doping.
| S-EPMC5344570 | biostudies-other
Unknown Large-Area Growth of Turbostratic Graphene on Ni(111) via Physical Vapor Deposition.
| S-EPMC4731759 | biostudies-literature