M
Michael Hävecker
Researcher at Helmholtz-Zentrum Berlin
Publications - 34
Citations - 3575
Michael Hävecker is an academic researcher from Helmholtz-Zentrum Berlin. The author has contributed to research in topics: Catalysis & Absorption spectroscopy. The author has an hindex of 20, co-authored 34 publications receiving 2916 citations. Previous affiliations of Michael Hävecker include Fritz Haber Institute of the Max Planck Society.
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Journal ArticleDOI
The Active Site of Methanol Synthesis over Cu/ZnO/Al2O3 Industrial Catalysts
Malte Behrens,Felix Studt,Igor Kasatkin,Stefanie Kühl,Michael Hävecker,Frank Abild-Pedersen,Stefan Zander,Frank Girgsdies,Patrick Kurr,Benjamin-Louis Kniep,Michael Tovar,Richard W. Fischer,Jens K. Nørskov,Jens K. Nørskov,Robert Schlögl +14 more
TL;DR: This work shows how to identify the crucial atomic structure motif for the industrial Cu/ZnO/Al2O3 methanol synthesis catalyst by using a combination of experimental evidence from bulk, surface-sensitive, and imaging methods collected on real high-performance catalytic systems in combination with density functional theory calculations.
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Nature of the N-Pd interaction in nitrogen-doped carbon nanotube catalysts
Rosa Arrigo,Manfred Erwin Schuster,Zailai Xie,Youngmi Yi,Gregor Wowsnick,Lili Sun,Klaus Hermann,Matthias Friedrich,Patrick Kast,Michael Hävecker,Axel Knop-Gericke,Robert Schlögl +11 more
TL;DR: In this article, the geometric and electronic structure of N species in N-doped carbon nanotubes (NCNTs) is derived by X-ray photoemission (XPS) and absorption spectroscopy (NEXAFS) of the N 1s core excitation.
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First principles calculations of the structure and V L-edge X-ray absorption spectra of V2O5 using local pair natural orbital coupled cluster theory and spin-orbit coupled configuration interaction approaches.
Dimitrios Maganas,Michael Roemelt,Michael Hävecker,Michael Hävecker,Annette Trunschke,Axel Knop-Gericke,Robert Schlögl,Robert Schlögl,Frank Neese +8 more
TL;DR: For the first time excellent agreement between theoretically predicted and experimentally measured vanadium L-edge NEXAFS spectra of V2O5 was achieved, indicating that the covalency of the metal-ligand bonds is correctly described by the calculations.
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In Situ Study of the Gas-Phase Electrolysis of Water on Platinum by NAP-XPS
Rosa Arrigo,Michael Hävecker,Manfred Erwin Schuster,Chinmoy Ranjan,Eugen Stotz,Axel Knop-Gericke,Robert Schlögl +6 more
TL;DR: Near-ambient-pressure X-ray photoelectron spectroscopy was used to study the surface of a Pt electrode during the oxygen evolution reaction (OER), finding a hydrated Pt metal phase with dissolved oxygen in the near-surface region is OER-active and considered to be the precursor of the analytically detected PtO2.
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A Near ambient pressure XPS study of Au oxidation
Alexander Yu. Klyushin,Tulio C. R. Rocha,Michael Hävecker,Michael Hävecker,Axel Knop-Gericke,Robert Schlögl +5 more
TL;DR: In situ observations show that a surface oxide phase is formed during the exposure to ozone; however this phase decomposes under vacuum and even in the presence of ozone at temperatures higher than 300 °C.