Scientific Commons: Hendrik Bluhm

Persistent currents in normal metal rings (2008)

Bluhm, Hendrik, Koshnick, Nicholas C., Bert, Julie A., Huber, Martin E., Moler, Kathryn A.

The authors report measurements of the magnetic response of 33 individual mesoscopic gold rings, one ring at a time, at low temperatures. The response of some sufficiently small rings has a component...

Ambient-Pressure X-ray Photoelectron Spectroscopy (2008)

Bluhm, Hendrik

In situ x-ray photoelectron spectroscopy studies of gas/solid interfaces at near-ambient conditions (2008)

Bluhm, Hendrik, Havecker, Michael, Knop-Gericke, Axel, Kiskinova, Maya, Schlogl, Robert, Salmeron, Miquel

Two-dimensional vortex behavior in highly underdoped YBa_2Cu_3O_{6+x} observed by scanning Hall probe microscopy (2008)

Guikema, J. W., Bluhm, Hendrik, Bonn, D. A., Liang, Ruixing, Hardy, W. N., Moler, K. A.

We report scanning Hall probe microscopy of highly underdoped superconducting YBa_2Cu_3O_{6+x} with T_c ranging from 5 to 15 K which showed distinct flux bundles with less than one superconducting...

Multiple fluxoid transitions in mesoscopic superconducting rings (2007)

Bluhm, Hendrik, Koshnick, Nicholas C., Huber, Martin E., Moler, Kathryn A.

The authors report magnetic measurements of fluxoid transitions in mesoscopic, superconducting aluminum rings. The transitions are induced by applying a flux to the ring so that the induced...

Stability of half-quantum vorticies in p_x+ip_y superconductors (2007)

Chung, Suk Bum, Bluhm, Hendrik, Kim, Eun-Ah

We consider the stability conditions for half-quantum vortices in quasi two dimensional $p_x+ip_y$ superconductor (such as ${\rm Sr_2 RuO_4}$ is believed to be) through energetics calculations....

Magnetic fields above the surface of a superconductor with internal magnetism (2007)

Bluhm, Hendrik

The author presents a method for calculating the magnetic fields near a planar surface of a superconductor with a given intrinsic magnetization in the London limit. He computes solutions for various...

The nature of the water nucleation sites on TiO2(110) surfaces relvealed by ambient pressure x-ray photoelectron spectroscopy (2007)

Ketteler, Guido, Yamamoto, Susumu, Bluhm, Hendrik, Andersson, Klas, Starr, David E., Ogletree, D. Frank, ...

In situ XPS investigation of Pt(Sn)/Mg(Al)O catalysts during ethane dehydrogenation experiments (2007)

Virnovskaia, Anastasia, Jørgensen, Sissel, Hafizovic, Jasmina, Prytz, Øystein, Kleimenov, Evgueni, Hävecker, Michael, ...

Calcined hydrotalcite with or without added metal (Mg(Al)O, Pt/Mg(Al)O and Pt,Sn/Mg(Al)O) have been investigated with in situ X-ray Photoelectron Spectroscopy (XPS) during ethane dehydrogenation...

In situ x-ray photoelectron spectroscopy studies of gas-solid interfaces at near-ambient conditions (2007)

Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Kiskinova, Maya, Schögl, Robert, Salmeron, Miquel

X-ray photoelectron spectroscopy (XPS) is a quantitative, chemically specific technique with a probing depth of a few angstroms to a few nanometers. It is therefore ideally suited to investigate the...

Magnetic response of mesoscopic superconducting rings with two order parameters (2006)

Bluhm, Hendrik, Koshnick, Nicholas C., Huber, Martin E., Moler, Kathryn A.

The magnetic response and fluxoid transitions of superconducting aluminum rings of various sizes, deposited under conditions likely to generate a layered structure, show good agreement with a...

Combined in situ XPS and PTRMS study of ethylene epoxidation over silver (2006)

Bukhtiyarov, Valerii I., Nizovskii, Alexander I., Bluhm, Hendrik, Hävecker, Michael, Kleimenov, Evgueni, Knop-Gericke, Axel, ...

Dynamic Electronic Structure of a Au/TiO2 Catalyst under Reaction Conditions (2006)

Willneff, Elizabeth A., Braun, Simon, Rosenthal, Dirk, Bluhm, Hendrik, Hävecker, Michael, Kleimenov, Evgueni, ...

Combined in situ XPS and in situ soft XAS study of Cu/ZnO catalysts for methanol steam reforming (2005)

Hävecker,Michael, Kniep,Benjamin, Kleimenov,Evgueni, Schnörch,Peter, Teschner,Detre, Zafeiratos,Spiros, ...

Combined in situ XPS and in situ soft XAS study of Cu/ZnO catalysts for methanol steam reforming (2005)

Hävecker, Michael, Kniep, Benjamin, Kleimenov, Evgueni, Schnörch, Peter, Teschner, Detre, Zafeiratos, Spiros, ...

Combined in situ XPS and in situ XAS study of Cu/ZnO catalysts for methanol steam reforming (2005)

Hävecker, Michael, Kniep, Benjamin, Kleimenov, Evgueni, Schnörch, Peter, Teschner, Detre, Zafeiratos, Spiros, ...

Copper-Zinc oxide (alumina) catalysts are industrially relevant for a variety of processes (low temperature methanol synthesis, low temperature water-gas shift reaction, methanol steam reforming). We...

High-pressure X-ray photoelectron spectroscopy of palladium model hydrogenation catalysts. Part 1: Effect of gas ambient and temperature (2005)

Teschner, Detre, Pestryakov, Alexeij, Kleimenov, Evgueni, Hävecker, Michael, Bluhm, Hendrik, Sauer, Hermann, ...

In light of accumulating evidence highlighting the major effect of operational conditions (gas composition, pressure, temperature) on the surface/bulk structure of catalytic materials, their...

High-pressure X-ray photoelectron spectroscopy of palladium model hydrogenation catalysts. Part 2: Hydrogenation of trans-2-pentene on palladium (2005)

Teschner, Detre, Pestryakov, Alexeij, Kleimenov, Evgueni, Hävecker, Michael, Bluhm, Hendrik, Sauer, Hermann, ...

We have performed the first “high-pressure” X-ray photoelectron spectroscopy (XPS) study on the palladium, hydrogen, and olefin (trans-2-pentene) system to gain better insight into the...

In situ X-ray photoelectron spectroscopy study of the oxidation of CuGaSe2 (2005)

Würz, Roland, Rusu, Marin, Schedel-Niedrig, Thomas, Lux-Steiner, Martha C., Bluhm, Hendrik, Hävecker, Michael, ...

XPS investigation of VPO catalysts under reaction conditions (2005)

Kleimenov, Evgueni, Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Pestryakov, Alexeij N., Teschner, Detre, ...

Selective gas-phase hydrogenation of C-5 hydrocarbons using Palladium and Nickel based catalysts (2005)

Teschner, Detre, Knop-Gericke, Axel, Vass, Elaine, Zafeiratos, Spiros, Pestryakov, Alexeij N., Kleimenov, Evgueni, ...

High-Pressure oxidation of the Ru(0001) surface at elevated temperatures investigated by in situ X-ray photoelectron spectroscopy (2005)

Blume, Raoul, Niehus, Horst, Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Schlögl, Robert, ...

Combined high pressure XPS and PTRMS study of ethylene epoxidation over silver (2005)

Bukhtiyarov, Valerii I., Nizovskii, Alexander, Bluhm, Hendrik, Hävecker, Michael, Kleimenov, Evgueni, Knop-Gericke, Axel, ...

Dynamic surface behaviour of VPO catalysts under reactive and non-reactive gas compositions: an in-situ XAS study (2004)

Hävecker,Michael, Knop-Gericke,Axel, Bluhm,Hendrik, Kleimenov,Evgueni, Mayer,Ralf, Fait,Martin, ...

The surface of an activated vanadium phosphorus oxide (VPO) catalyst was investigated by means of in situ X-ray absorption spectroscopy in the total electron yield mode. We observed significant...

Pt-CO/SiO2 bimetallic planar model catalysts for selective hydrogenation of crotonaldehyde (2004)

Borgna,Armando, Anderson,Bruce G., Saib,Abdool M., Bluhm,Hendrik, Hävecker,Michael, Knop-Gericke,Axel, ...

In situ x-ray absorption of Co/Mn/TiO2 catalysts for Fischer-Tropsch synthesis (2004)

Morales,Fernando, Glatzel,Peter, Kleimenov,Evgueni, Bluhm,Hendrik, Hävecker,Michael, ...

Dynamic surface behaviour of VPO catalysts under reactive and non-reactive gas compositions: an in-situ XAS study (2004)

Hävecker, Michael, Knop-Gericke, Axel, Bluhm, Hendrik, Kleimenov, Evgueni, Mayer, Ralf, Fait, Martin, ...

The surface of an activated vanadium phosphorus oxide (VPO) catalyst was investigated by means of in situ X-ray absorption spectroscopy in the total electron yield mode. We observed significant...

In situ XPS at a bending magnet beamline: Study of the electronic structure of binary Cu/Zn catalysts (2004)

BESSY GmbH, Hävecker, Michael, Kniep, Benjamin, Bluhm, Hendrik, Kleimenov, Evgueni, Teschner, Detre, ...

Pt-CO/SiO2 bimetallic planar model catalysts for selective hydrogenation of crotonaldehyde (2004)

Borgna, Armando, Anderson, Bruce G., Saib, Abdool M., Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, ...

In situ x-ray absorption of Co/Mn/TiO2 catalysts for Fischer-Tropsch synthesis (2004)

Morales, Fernando, Glatzel, Peter, Kleimenov, Evgueni, Bluhm, Hendrik, Hävecker, Michael, ...

Selective Hydrogenation of acrolein using silver catalysts studied by high-pressure XPS and XAS (2004)

Knop-Gericke, Axel, Techner, Detre, Pestryakov, Alexeij, Kleimenov, Evgueni, Steinhauer, Bernd, Hävecker, Michael, ...

„High-pressure“ XPS Study on Palladium/Hydrogenation System (2004)

Teschner, Detre, Pestryakov, Alexeij, Kleimenov, Evgueni, Hävecker, Michael, Bluhm, Hendrik, Sauer, Hermann, ...

Methanol oxidation on a copper catalyst investigated using in situ X-ray photoelectron spectroscopy (2004)

Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Kleimenov, Evgueni, Schlögl, Robert, Techner, Detre, ...

In situ X-ray absorption of Co/TiO2 catalysts for Fischer-Tropsch synthesis (2004)

Morales, Fernando, Glatzel, Peter, De Groot, Frank, Weckhuysen, Bert, Kleimenov, Evgueni, Bluhm, Hendrik, ...

Combined application of XPS, XANES and mass spectrometry to the in situ study of ethylene epoxidation over silver (2004)

Bukhtiyarov, Valerii, Nizovski, Alexander, Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Schlögl, Robert

In situ XPS investigations of the VPO catalyst oxidation state at different catalyst conditions (2004)

Kleimenov, Evgueni, Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Pestryakov, Alexeij, Teschner, Detre, ...

In situ X-ray photoelectron-spectroscopy of ammonia oxidation on Pt(533) (2004)

Günther, Sebastian, Scheibe, Axel, Albrecht, Dieter, Imbihl, Ronald, Bluhm, Hendrik, Hävecker, Michael, ...

In situ surface analysis in selective oxidation catalysis: n-Butane conversion over VPP (2003)

Bluhm,Hendrik, Hävecker,Michael, Kleimenov,Evgueni, Knop-Gericke,Axel, Liskowski,Andrzej, Schlögl,Robert, ...

In-situ analysis of the surface of a working selective oxidation catalyst is an essential yet rarely conducted experiment in attempts to derive structure-function relationships. The case study of...

In Situ Investigation of the nature of the active surface of a vanadyl pyrophosphate catalyst during the n-butane oxidation to maleic anhydride (2003)

Hävecker,Michael, Mayer,Ralf W., Knop-Gericke,Axel, Bluhm,Hendrik, Kleimenov,Evgueni, Liskowski,Andrzej, ...

In situ X-ray absorption spectroscopy (XAS) and in situ X-ray photoelectron spectroscopy (XPS) have been applied to study the active surface of vanadium phosphorus oxide (VPO) catalysts in the course...

In-situ soft X-ray absorption of over-exchanged Fe/ZSM5 (2003)

Heijboer,Willem M., Battiston,Andrea A., Knop-Gericke,Axel, Hävecker,Michael, Mayer,Ralf W., Bluhm,Hendrik, ...

In situ X-ray photoelectron spectroscopy of the methanol oxidation on copper (2003)

Bluhm,Hendrik, Hävecker,Michael, Knop-Gericke,Axel, Teschner,Detre, Kleimenov,Evgueni, Bukhtiyarov,Valerii I., ...

Redox behavior of over-exchanged Fe/ZSM5 zeolites studied with in situ soft X-ray absorption spectroscopy (2003)

Heijboer,Willem, Battiston,Andrea A., Knop-Gericke,Axel, Hävecker,Michael, Bluhm,Hendrik, Weckhuysen,Bert M., ...

In situ surface analysis in selective oxidation catalysis: n-Butane conversion over VPP (2003)

Bluhm, Hendrik, Hävecker, Michael, Kleimenov, Evgueni, Knop-Gericke, Axel, Liskowski, Andrzej, Schlögl, Robert, ...

In-situ analysis of the surface of a working selective oxidation catalyst is an essential yet rarely conducted experiment in attempts to derive structure-function relationships. The case study of...

In Situ Investigation of the nature of the active surface of a vanadyl pyrophosphate catalyst during the n-butane oxidation to maleic anhydride (2003)

Hävecker, Michael, Mayer, Ralf W., Knop-Gericke, Axel, Bluhm, Hendrik, Kleimenov, Evgueni, Liskowski, Andrzej, ...

In situ X-ray absorption spectroscopy (XAS) and in situ X-ray photoelectron spectroscopy (XPS) have been applied to study the active surface of vanadium phosphorus oxide (VPO) catalysts in the course...

In-situ soft X-ray absorption of over-exchanged Fe/ZSM5 (2003)

Heijboer, Willem M., Battiston, Andrea A., Knop-Gericke, Axel, Hävecker, Michael, Mayer, Ralf W., Bluhm, Hendrik, ...

Characterisation of VPO catalysts for n-butane oxidation using in situ XPS (2003)

Kleimenov, Evgueni, Ayub, Ibrah, Bluhm, Hendrik, Hävecker, Michael, Ihmann, Klaus, Knop-Gericke, Axel, ...

In situ X-ray photoelectron spectroscopy of the methanol oxidation on copper (2003)

Bluhm, Hendrik, Hävecker, Michael, Knop-Gericke, Axel, Teschner, Detre, Kleimenov, Evgueni, Bukhtiyarov, Valerii I., ...

Redox behavior of over-exchanged Fe/ZSM5 zeolites studied with in situ soft X-ray absorption spectroscopy (2003)

Heijboer, Willem, Battiston, Andrea A., Knop-Gericke, Axel, Hävecker, Michael, Bluhm, Hendrik, Weckhuysen, Bert M., ...

Influence of the geometric structure on the V L3 near edge X-ray absorption fine structure from vanadium phosphorus oxide catalysts (2002)

Hävecker,Michael, Knop-Gericke,Axel, Mayer,Ralf W., Fait,Martin, Bluhm,Hendrik, Schlögl,Robert

We present the V L3 near edge X-ray absorption fine structure (NEXAFS) of a vanadium phosphorus oxide (VPO) catalyst. The spectrum is related to the V3d-O2p hybridised unoccupied states. The overall...

In situ characterisation of vanadium-phosphorus-oxide (VPO) catalysts for n-butane oxidation by applying X-ray absorption spectroscopy (2002)

Hävecker,Michael, Knop-Gericke,Axel, Mayer,Ralf W., Fait,Martin, Bluhm,Hendrik, Schlögl,Robert

The premelting of ice studied with photoelectron spectroscopy (2002)

Bluhm,Hendrik, Ogletree,D.Frank, Fadley,Charles S., Hussain,Zahid, Salmeron,Miquel

A differentially pumped electrostatic lens system for photoemission studies in the millibar range (2002)

Ogletree,D.Frank, Bluhm,Hendrik, Lebedev,Gennadi, Fadley,Charles S., Hussain,Zahid, Salmeron,Miquel

Influence of the geometric structure on the V L3 near edge X-ray absorption fine structure from vanadium phosphorus oxide catalysts (2002)

Hävecker, Michael, Knop-Gericke, Axel, Mayer, Ralf W., Fait, Martin, Bluhm, Hendrik, Schlögl, Robert

We present the V L3 near edge X-ray absorption fine structure (NEXAFS) of a vanadium phosphorus oxide (VPO) catalyst. The spectrum is related to the V3d-O2p hybridised unoccupied states. The overall...

In situ characterisation of vanadium-phosphorus-oxide (VPO) catalysts for n-butane oxidation by applying X-ray absorption spectroscopy (2002)

Hävecker, Michael, Knop-Gericke, Axel, Mayer, Ralf W., Fait, Martin, Bluhm, Hendrik, Schlögl, Robert

The premelting of ice studied with photoelectron spectroscopy (2002)

Bluhm, Hendrik, Ogletree, D.Frank, Fadley, Charles S., Hussain, Zahid, Salmeron, Miquel

A differentially pumped electrostatic lens system for photoemission studies in the millibar range (2002)

Ogletree, D.Frank, Bluhm, Hendrik, Lebedev, Gennadi, Fadley, Charles S., Hussain, Zahid, Salmeron, Miquel

The ammonia oxidation over copper: First experiments with copper clusters investigated by means of in situ NEXAFS (2002)

Mayer, Ralf W., Hävecker, Michael, Bluhm, Hendrik, Knop-Gericke, Axel, Melzer, Mario, Urban, Joachim, ...

Untersuchung ferroelektrischer Kristalle mit dem Rasterkraftmikroskop / (1996)

Bluhm, Hendrik.

Zugl.: Hamburg, Universiẗat, Diss., 1996.

High-pressure XPS: a new tool for environmental science and catalysis