Oxygen Functionalization of Hexagonal Boron Nitride on Ni(111)

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Details zur Publikation

Autorinnen und Autoren: Späth F, Soni H, Steinhauer J, Düll F, Bauer U, Bachmann P, Hieringer W, Görling A, Steinrück HP, Papp C
Zeitschrift: Chemistry - A European Journal
Jahr der Veröffentlichung: 2019
ISSN: 0947-6539
eISSN: 1521-3765


Abstract

The interaction of single-layer hexagonal boron nitride (h-BN) on Ni(111) with molecular oxygen from a supersonic molecular beam led to a covalently bonded molecular oxygen species, which was identified as being between a superoxide and a peroxide. This is a rare example of an activated adsorption process leading to a molecular adsorbate. The amount of oxygen functionalization depended on the kinetic energy of the molecular beam. For a kinetic energy of 0.7 eV, an oxygen coverage of 0.4 ML was found. Near-edge X-ray adsorption fine structure (NEXAFS) spectroscopy revealed a stronger bond of h-BN to the Ni(111) substrate in the presence of the covalently bound oxygen species. Oxygen adsorption also led to a shift of the valence bands to lower binding energies. Subsequent temperature-programmed X-ray photoelectron spectroscopy revealed that the oxygen boron bonds are stable up to approximately 580 K, when desorption, and simultaneously, etching of h-BN set in. The experimental results were substantiated by density functional theory calculations, which provided insight to the adsorption geometry, the adsorption energy and the reaction pathway.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bauer, Udo Dr.
Lehrstuhl für Physikalische Chemie II
Düll, Fabian
Lehrstuhl für Physikalische Chemie II
Görling, Andreas Prof. Dr.
Lehrstuhl für Theoretische Chemie
Hieringer, Wolfgang PD Dr.
Lehrstuhl für Theoretische Chemie
Papp, Christian PD Dr.
Lehrstuhl für Physikalische Chemie II
Soni, Himadriben
Lehrstuhl für Theoretische Chemie
Späth, Florian
Lehrstuhl für Physikalische Chemie II
Steinhauer, Johann
Lehrstuhl für Physikalische Chemie II
Steinrück, Hans-Peter Prof. Dr.
Lehrstuhl für Physikalische Chemie II


Zitierweisen

APA:
Späth, F., Soni, H., Steinhauer, J., Düll, F., Bauer, U., Bachmann, P.,... Papp, C. (2019). Oxygen Functionalization of Hexagonal Boron Nitride on Ni(111). Chemistry - A European Journal. https://dx.doi.org/10.1002/chem.201901504

MLA:
Späth, Florian, et al. "Oxygen Functionalization of Hexagonal Boron Nitride on Ni(111)." Chemistry - A European Journal (2019).

BibTeX: 

Zuletzt aktualisiert 2019-25-06 um 09:08