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Bjørk Hammer
Researcher at Aarhus University
Publications - 242
Citations - 42965
Bjørk Hammer is an academic researcher from Aarhus University. The author has contributed to research in topics: Density functional theory & Adsorption. The author has an hindex of 76, co-authored 231 publications receiving 37382 citations. Previous affiliations of Bjørk Hammer include Zhejiang University of Technology & Aalborg University.
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Journal ArticleDOI
Direct observation of molecular preorganization for chirality transfer on a catalyst surface.
Vincent Demers-Carpentier,Guillaume Goubert,Federico Masini,Raphaël Lafleur-Lambert,Yi Dong,Stéphane Lavoie,Gautier Mahieu,John Boukouvalas,Haili Gao,Anton M. H. Rasmussen,Lara Ferrighi,Yunxiang Pan,Bjørk Hammer,Peter H. McBreen +13 more
TL;DR: It is shown that the investigation of heterogeneous asymmetric induction with single-site resolution sufficient to distinguish stereochemical conformations at the submolecular level is finally accessible and that the chiral modifier induces prochiral switching on the surface.
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Experimental evidence for the formation of highly superhydrogenated polycyclic aromatic hydrocarbons through h atom addition and their catalytic role in h2 formation
J. D. Thrower,Bjarke Jørgensen,Emil E. Friis,S. Baouche,S. Baouche,Vito Mennella,Alan C. Luntz,Alan C. Luntz,Mie Andersen,Bjørk Hammer,Liv Hornekær +10 more
TL;DR: In this paper, mass spectrometer measurements show the formation of highly super-hydrogenated derivatives of the polycyclic aromatic hydrocarbon molecule coronene through H atom addition reactions.
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Inverted vibrational distributions from N2 recombination at Ru(001): Evidence for a metastable molecular chemisorption well
TL;DR: In this article, the authors measured translational and internal state distributions for N2 desorbed from a Ru(001) surface following NH3 cracking at 900 K and found that the translational energy distributions show a peak at low energy with a tail extending up to ∼2 eV and a mean energy release of 0.62 eV for N 2(v=0) and 0.61 eV (v=1).
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A first-principles potential energy surface for Eley–Rideal reaction dynamics of H atoms on Cu(111)
TL;DR: In this article, the authors performed first-principles total energy calculations of low-dimensional sections of the electronically adiabatic potential energy surface (PES) that are relevant for the Eley-Rideal (ER) reaction of H atoms on a rigid Cu(111) surface.
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Imaging of the hydrogen subsurface site in rutile TiO2.
Georg H. Enevoldsen,Henry P. Pinto,Adam S. Foster,Adam S. Foster,Mona C. R. Jensen,Werner A. Hofer,Bjørk Hammer,Jeppe V. Lauritsen,Flemming Besenbacher +8 more
TL;DR: From an interplay between simultaneously recorded noncontact atomic force microscopy and scanning tunneling microscopy images and simulations based on density functional theory, the location of single hydrogen species is revealed in the surface and subsurface layers of rutile TiO2.