H. Bönnemann

Synthesis and characterization. (2009)

Behrens, S., Bönnemann, H., Matoussevitch, N., Modrow, H., Kempter, V., Riehmann, W., ...

Odenbach, S. [Hrsg.]

Heat-treated PtCo§3 nanoparticles as oxygen reduction catalysts. (2009)

Schulenburg, H., Müller, E., Khelashvili, G., Roser, T., Bönnemann, H., Wokaun, A., ...

Journal of Physical Chemistry C, 113(2009) S.4069-77

A simple amonoalkyl siloxane-mediated route to functional magnetic metal nanoparticles and magnetic nanocomposites. (2009)

Gorschinski, A., Khelashvili, G., Schild, D., Habicht, W., Brand, R., Ghafari, M., ...

Journal of Materials Chemistry, 19(2009) S.8829-38

Material development for dye solar modules: Results from an integrated approach (2008)

Hinsch, A., Behrens, S., Berginc, M., Bönnemann, H., Brandt, H., Drewitz, A., ...

In this paper, we report on tire outcome of a German network project conducted with 12 partners from universities and research institutes on the material development of dye solar cells (DSC). We give...

Magnetic metal nanocomposite particles. (2008)

Behrens, S., Gorschinski, A., Khelashvili, G., Bönnemann, H., Dinjus, E.

European Materials Research Society Spring Meeting, Strasbourg, F, May 26-30, 2008

Synthesis of magnetic metal nanocomposite particles. (2008)

Gorschinski, A., Khelashvili, G., Schild, D., Faubel, W., Heissler, S., Bönnemann, H., ...

8th German Ferrofluid Workshop, Mainz, May 7-9, 2008

Material development for dye solar modules: results from an integrated approach. (2008)

Hinsch, A., Behrens, S., Berginc, M., Bönnemann, H., Brandt, H., Drewitz, A., ...

Progress in Photovoltaics: Research and Applications, 16(2008) S.489-501

A new synthesis pathway for Co nanoparticles and magnetic metal nanocomposites. (2008)

Gorschinski, A., Khelashvili, G., Schild, D., Faubel, W., Heissler, S., Bönnemann, H., ...

11th Internat.Conf.on Electrorheological Fluids and Magnetorheological Suspensions, Dresden, August 25-29, 2008

PtRu colloidal catalysts : Characterisation and determination of kinetics for methanol oxidation (2007)

Vidakovic, T., Christov, M., Sundmacher, K., Nagabhushana, K., Fei, W., Kinge, S., ...

The activities of three platinum ruthenium carbon supported catalysts of the same nominal composition (Pt:Ru, 1:1) are investigated in respect to methanol oxidation. The catalysts are synthesized by...

Role of the platinum nanoclusters in the iodide/triiodide redox system of dye solar cells (2007)

Bönnemann, H., Khelashvili, G., Behrens, S., Hinsch, A., Skupien, K., Dinjus, E.

The publication covers materials and cluster science aspects of the platinum counter electrode (CE) in the "monolithic type" dye sensitized solar cell systems (DSSC). Nanocluster based catalytic...

Preparation and characterization of low platinum loaded Pt:SnO2 electrocatalytic films for screen printed dye solar cell counter electrode (2007)

Khelashvili, G., Behrens, S., Hinsch, A., Habicht, W., Schild, D., Eichhöfer, A., ...

A series of low platinum loaded Pt:SnO2 electrocatalysts for dye-sensitized solar cells were prepared by the hydrogen reduction method at 120 °C. As prepared and annealed at 630 °C samples...

Surface modification of metallic Co nanoparticles. (2007)

Matoussevitch, N., Gorschinski, A., Habicht, W., Bolle, J., Dinjus, E., Bönnemann, H., ...

Journal of Magnetism and Magnetic Materials, 311(2007) S.92-96

Preparation and characterisation of low platinum loaded Pt:SnO§2 electrocatalytic films for screen printed dye solar cell counter electrode. (2007)

Khelashvili, G., Behrens, S., Hinsch, A., Habicht, W., Schild, D., Eichhöfer, A., ...

Thin Solid Films, 515(2007) S.4074-79

PtRu colloidal catalysts: Characterisation and determination of kinetics for methanol oxidation (2007)

Vidakovic, T., Christov, M., Sundmacher, K., Nagabhushana, K.S., Fei, W., Kinge, S., ...

Electrochimica Acta, 52(2007) S.2277-84

PtRu colloidal catalysts: Characterisation and determination of kinetics for methanol oxidation (2007)

Vidakovic, T., Christov, M., Sundmacher, K., Nagabhushana, K.S., Fei, W., Kinge, S., ...

3.Gerischer Symp., Berlin, July 6-8, 2005

Metallic cobalt nanoparticles for heating applications. (2007)

Zeisberger, M., Dutz, S., Müller, R., Hergt, R., Matoussevitch, N., Bönnemann, H.

6th Internat.Conf.on the Scientific and Clinical Applications of Magnetic Carriers (SCAMSC-06), Krems, A, May 17-20, 2006

Metallic cobalt nanoparticles for heating applications. (2007)

Zeisberger, M., Dutz, S., Müller, R., Hergt, R., Matoussevitch, N., Bönnemann, H.

Journal of Magnetism and Magnetic Materials, 311(2007) S.224-27

Reductive annealing for generating Se doped 20 wt% Ru/C cathode catalysts for the oxygen reduction reaction. (2007)

Nagabhushana, K., Dinjus, E., Bönnemann, H., Zaikovskii, V., Hartnig, C., Zehl, G., ...

Journal of Applied Electrochemistry, 37(2007) S.1515-22

Activity of selenium modified ruthenium-electrodes and determination of the real surface area. (2007)

Bogolowski, N., Nagel, T., Lanova, B., Ernst, S., Baltruschat, H., Nagabhushana, K.S., ...

Journal of Applied Electrochemistry, 37(2007) S.1485-94

Activity, selectivity, and methanol tolerance of novel carbon-supported Pt and Pt§3Me (Me = Ni, Co) cathode catalysts. (2007)

Colmenares, L., Guerrini, E., Jusys, Z., Nagabhushana, K.S., Dinjus, E., Behrens, S., ...

Journal of Applied Electrochemistry, 37(2007) S.1413-27

Air-stable Co-, Fe-, and Fe/Co-nanoparticles and ferrofluids. (2006)

Behrens, S., Bönnemann, H., Matoussevitch, N., Dinjus, E., Modrow, H., Palina, N., ...

Zeitschrift für Physikalische Chemie, 220(2006) S.3-40

Synthesis and structural characterization of Se-modified carbon-supported Ru nanoparticles for the oxygen reduction reaction. (2006)

Zaikovskii, V.I., Nagabhushana, K.S., Kriventsov, V.V., Loponov, K.N., Cherepanova, S.V., Kvon, R.I., ...

Journal of Physical Chemistry B, 110(2006) S.6881-90

Catalytic platinum layers for dye solar cells. A comparative study. (2006)

Khelashvili, G., Behrens, S., Weidenthaler, C., Vetter, C., Hinsch, A., Kern, R., ...

Thin Solid Films, 511-512(2006) S.342-48

Surface engineering of Co and FeCo nanoparticles for biomedical application. (2006)

Behrens, S., Bönnemann, H., Matoussevitch, N., Gorschinski, A., Dinjus, E., Habicht, W., ...

Journal of Physics: Condensed Matter, 18(2006) S.S2543-S2561

Preparation and characterisation of low platinum loaded Pt:SnO§2 electrocatalyst for printable dye solar cells. (2006)

Khelashvili, G., Hinsch, A., Behrens, S., Habicht, W., Schild, D., Eichhöfer, A., ...

Spring Meeting of the European Materials Research Society, Nice, F, May 29 - June 2, 2006

Air stable Fe and Fe–Co magnetic fluids—synthesis and characterization (2005)

Bönnemann, H., Brand, R. A., Brijoux, W., Frerichs, M., Kempter, V., ...

Thermolysis of Fe(CO)5 and Co2(CO)8, dissolved in tetrahydronaphthalene, in the presence of aluminum trialkyl leads to uniform-sized Fe or Fe–Co nanoparticles, respectively. Subsequent treatment...

"Contact voltage" in nanoparticle/molecule connections (2005)

Modrow, H., Modrow, S., Hormes, J., Waldöfner, N., Bönnemann, H.

A facile one-pot synthesis of [(COD)Pt(CH₃)₂] (2005)

Wen, F., Bönnemann, H.

Air stable Fe and Fe-Co magnetic fluids - synthesis and characterization (2005)

Bönnemann, H., Brand, R. A., Brijoux, W., Frerichs, M., Kempter, V., ...

Evidence of colloidal rhodium formation during the biphasic hydroformylation of 1-octene with thermoregulated phase-transfer phosphine rhodium(I) catalyst (2005)

Wen, F., Bönnemann, H., Jiang, J., Lu, D., Wang, Y., Jin, Z.

Formation and characterization of Pt nanoparticle networks (2005)

Wen, F., Waldöfner, N., Schmidt, W., Angermund, K., Bönnemann, H., Modrow, S., ...

Highly stable carbon-protected cobalt nanoparticles and graphite shells (2005)

Matoussevitch, N., Spliethoff, B., Bönnemann, H., Schüth, F.

Microstructure and rheology of ferrofluids (2005)

Pop, L. M., Odenbach, S., Wiedenmann, A., Matoussevitch, N., Bönnemann, H.

Monodisperse copper- and silver-nanocolloids suitable for heat-conductive fluids (2005)

Bönnemann, H., Botha, S. S., Bladergroen, B., Linkov, V. M.

Optimization of colloidal nanoparticle synthesis via NR₄(BEt₃H) reduction (2005)

Kinge, S., Bönnemann, H.

Preparation of Pt₁₃ clusters in the presence of trialkylaluminium (2005)

Wen, F., Bönnemann, H., Mynott, R., Spliethoff, B., Weidenthaler, C., Palina, N., ...

The influence of various coatings on the electronic, magnetic, and geometric properties of cobalt nanoparticles (invited) (2005)

Hormes, J., Modrow, H., Bönnemann, H.

In-situ X-ray absorption spectroscopy investigations during the conditioning procedure of PtRu colloid catalysts (2005)

Modrow, H., Köhl, G., Hormes, J., Bönnemann, H., Endruschat, U., Mörtel, R.

Vergasung organischer Substanzen in überkritischem Wasser. Nasse Biomasse liefert Energie für Brennstoffzellen (2005)

Boukis, N., Galla, U., Bönnemann, H., Dinjus, E.

In-Situ X-Ray Absorption Near Edge Structure (Xanes) Spectroscopy of PtRu Colloid Catalysts at Operating Temperature (2005)

Brendebach, B., Bucher, S., Hormes, J., Bönnemann, H., Nagabhushana, K. S., Brinkmann, R., ...

Catalytic platinum layers for dye solar cells. A comparative study. (2005)

Khelashvili, G., Behrens, S., Weidenthaler, C., Vetter, C., Hinsch, A., Kern, R., ...

Spring Meeting of the European Materials Research Society, Strasbourg, May 31 - June 3, 2005 (Poster)

Fe, Co, Fe/Co magnetic fluids. Water based magnetic fluids. (2005)

Bönnemann, H., Matoussevitch, N., Behrens, S., Dinjus, E., Corschinski, A.

Colloidal Fluids: Preparation, Characterization, Physical Properties and Application ; 88th Internat.Bunsen Discussion Meeting, Saarbrücken, July 20-22, 2005 (Poster)

PtRu Methanol Fuel Cell Catalysts : Influence of Synthetic Procedures (2004)

Vidakovic,T., Christov,M., Sundmacher,K., Bönnemann,H.

Electrochemical oxidation of methanol is a complex process, which involves many adsorbed intermediates. PtRu is considered to be the best catalyst for methanol oxidation. The apparent activity of...

PtRu Methanol Fuel Cell Catalysts : Influence of Synthetic Procedures (2004)

Vidakovic, T., Christov, M., Sundmacher, K., Bönnemann, H.

Electrochemical oxidation of methanol is a complex process, which involves many adsorbed intermediates. PtRu is considered to be the best catalyst for methanol oxidation. The apparent activity of...

Advantageous fuel cell catalysts from colloidal nanometals (2004)

Bönnemann, H., Nagabhushana, K. S.

High-quality structure parameter for magnetic liquids obtained by small-angle scattering of polarized neutrons (2004)

Heinemann, A., Wiedenmann, A., Kammel, M., Bönnemann, H., Matoussevitch, N.

Nanoengineering of a magnetically separable hydrogenation catalyst (2004)

Schmidt, W., Matoussevitch, N., Bönnemann, H., Spliethoff, B., Tesche, B., ...

Magnetic characterization of cobalt nonoparticles by temperature-dependent magnetic relaxation measurements (2004)

Romanus, E., Matoussevitch, N., Prass, S., Heinrich, J., Müller, R., Berkov, D. V., ...

Study of the structure and stability of cobalt nanoparticles for ferrofluidic applications (2004)

Rudenkiy, S., Frerichs, M., Voigts, F., Maus-Friedrichs, W., Kempter, V., Brinkmann, R., ...

Nanoengineering of a Magnetically Separable Hydrogenation Catalyst (2004)

Schmidt, W., Matoussevitch, N., Bönnemann, H., Spliethoff, B., Tesche, B., ...

Nanostructured Transition Metals (2004)

Bönnemann, H., Brijoux, W., Brinkmann, R., Feyer, M., Hofstadt, W., Khelashvili, G., ...

Chloride free and PtRu-Nanoparticles Stabilised by "Armand's Ligand" as Precursors for Fuel Cell Catalysts (2004)

Bönnemann, H., Brinkmann, R., Kinge, S., Ould Ely, T., Armand, M.

Activation of Colloidal PtRu Fuel Cell Catalysts via a Thermal "Conditioning" Process (2004)

Bönnemann, H., Endruschat, U., Hormes, J., Köhl, G., Kruse, S., Modrow, H., ...

Colloidal Nanometals as Fuel Cell Catalyst Precursors (2004)

Bönnemann, H., Nagabhushana, K. S.

Tunable Synthetic Approaches for the Optimization of Nanostructured Fuel Cell Catalysts: A Overview (2004)

Bönnemann, H., Nagabhushana, K. S.

Chemical Synthesis of Nanoparticles (2004)

Bönnemann, H., Nagabhushana, K. S.

Wet chemical synthesis of nanoparticles (2004)

Nagabhushana, K. S., Bönnemann, H.

A size-selective synthesis of air stable colloidal magnetic cobalt nanoparticles (2003)

Bönnemann, H., Brijoux, W., Brinkmann, R., Matoussevitch, N., Waldöfner, N., Palina, N., ...

Characterization of aluminum-organic-stabilized platinum-colloid networks with electron and photon spectroscopies (2003)

Beuermann, L., Maus-Friedrichs, W., Krischok, S., Kempter, V., Bucher, S., Modrow, H., ...

From Pt molecules to nanoparticles: in-situ (anomalous) small-angle X-ray scattering studies (2003)

Vad, T., Waldöfner, N., Bönnemann, H.

In situ study on the wet chemical synthesis of nanoscopic Pt colloids by "reductive stabilization" (2003)

Angermund, K., Bühl, M., Endruschat, U., Mauschick, F. T., Mörtel, R., Mynott, R., ...

Synthesis and characterization of a new modification of PtAl (2003)

Weidenthaler, C., Brijoux, W., Ould Ely, T., Spliethoff, B., Bönnemann, H.

Size Selective Synthesis of Colloidal Magnetic Nanoparticles (2003)

Bönnemann, H., Brijoux, W., Brinkmann, R., Matoussevitch, N., Waldöfner, N.

Nanomaterials as Precursors for Electrocatalysts (2003)

Bönnemann, H., Richards, R.

Structural characterization of a novel catalyst obtained from nanoscopic NiAlχ by X-ray absorption spectoscopy (2003)

Modrow, H., Rahman, M. O., Richards, R., Hormes, J., Bönnemann, H.

Nanoscopic Pt colloids in the 'embryonic state'. (2003)

Angermund, K., Bühl, M., Dinjus, E., Endruschat, U., Gassner, F., Haubold, H.G., ...

Angewandte Chemie - International Edition, 41(2002) S.4041-44

In situ study on the wet chemical synthesis of nanoscopic Pt colloids by "reductive stabilization". (2003)

Angermund, K., Bühl, M., Endruschat, U., Mauschick, T., Mörtel, R., Mynott, R., ...

Journal of Physical Chemistry B, 107(2003) S.7507-7515

Nanoscopic Pt colloids in the "embryonic state" (2002)

Angermund, K., Bühl, M., Dinjus, E., Endruschat, U., Gassner, F., Haubold, H. G., ...

Preparation and characterisation of mesoporous zirconium oxide (vol 214, pg 273, 2001) (2002)

Parvulescu, V. I., Bönnemann, H., Parvulescu, V., Endruschat, U., Rufiñska, A., Lehmann, C. W., ...

Three-dimensional Pt-nanoparticle networks studied by anomalous small-angle X-ray scattering and X-ray absorption spectroscopy (2002)

Vad, T., Haubold, H. G., Waldöfner, N., Bönnemann, H.

Anomalous small-angle X-ray scattering (ASAXS) experiments with synchrotron radiation were performed to study the three- dimensional nanostructures of metal/organic hybrids formed by crosslinking...

Noble metal nanoparticles incorporated in mesoporous hosts (2002)

Niederer, J. P. M., Arnold, A. B. J., Hölderich, W. F., Spliethoff, B., Tesche, B., Reetz, M. T., ...

Noble metal nanoparticle containing [Me](x)-MCM-41 were synthesized using surfactant stabilised palladium, iridium and rhodium nanoparticles in the synthesis gel. The materials were characterised...

Nanoscale skeletal nickel catalysts prepared via 'bottom up' method (2002)

Richards, R., Geibel, G., Hofstadt, W., Bönnemann, H.

NiAl nanoparticles are of considerable importance because of interest in examining the effects of size, surface area, and composition on their physical and catalytic properties. Recently, a new...

Preparation and characterization of three-dimensional Pt nanoparticle networks (2002)

Bönnemann, H., Waldöfner, N., Haubold, H. G., Vad, T.

We have synthesized nanostructured metal/organic networks by cross-linking preformed aluminum-organic-stabilized Pt nanoparticles in solution with organic spacer molecules. The protonolytic...

Wet chemistry synthesis of beta-nickel aluminide NiAl (2002)

Bönnemann, H., Brijoux, W., Ould-Ely, T., Schmidt, W., Waßmuth, B., ...

Interaction between core and protection shell of N(butyl)4Cl- and N(octyl)4Cl-stabilized Pd colloids (2002)

Bucher, S., Hormes, J., Modrow, H., Brinkmann, R., Waldöfner, N., Bönnemann, H., ...

We present X-ray absorption near edge structure (XANES) measurements on N(butyl)(4)Cl- and N(octyl)(4)Cl-stabilized Pd colloids at both the Pd L-III- and the Cl K-edge. Metastable impact electron...

Synthesis and Application of Organyl-Cobalt Cocyclization Catalysts (2002)

Bönnemann, H., Brijoux, W.

Cyclooligomerization of alkynes (2002)

Bönnemann, H., Brijoux, W.

Manufacture of Heterogeneous Mono- und Bimetallic Colloid Catalysts and Their Applications in Fine Chemical Synthesis and Fuel Cells (2002)

Bönnemann, H., Richards, R.

Nanoskopische Pt-Kolloide im "embryonalen Stadium" (2002)

Angermund, K., Bühl, M., Dinjus, E., Endruschat, U., Gassner, F., ...

Nasschemische Synthese von β-Nickelaluminid NiAl (2002)

Bönnemann, H., Brijoux, W., Ould Ely, T., Schmidt, W., Waßmuth, B., ...

Preparation and characterization of three-dimensional Pt nanoparticle networks (2002)

Bönnemann, H., Waldöfner, N. B., Vad, Th.

Three-dimensional Pt-nanoparticle networks studied by anomalous small-angle X-ray scattering and X-ray absorption spectroscopy (2002)

Vad, Th., Waldöfner, N. B., Bönnemann, H.

0

Anwendung von Feldemissions-Elektronenmikroskopie (FE-REM) und Rasterkraftmikroskopie (AFM) bei der Untersuchung neuer Katalysatoren. (1998)

Habicht, W., Behrens, S., Boukis, N., Dinjus, E., Bönnemann, H., Endruschat, U., ...

Arbeitskreis für Elektronenmikroskopische Direktabbildung und Analyse von Oberflächen EDO, 31. Herbsttagung, Saarbrücken, 28.-30.September 1998 (Poster)

XAS-Investigations of Colloidal Precursors for Pt/Rh Bimetallic Catalysts (1997)

Rothe, J., Köhl, G., Hormes, J., Bönnemann, H., Brijoux, W., Siepen, K.

Innovative transition metal catalysts prepared on the basis of preformed colloidal nano-particles and stabilized by surfactants are of special interest with regard to industrial applications. The...

XAS-Investigations of Colloidal Precursors for Pt/Rh Bimetallic Catalysts (1997)

Rothe, J., Köhl, G., Hormes, J., Bönnemann, H., Brijoux, W., Siepen, K.

Innovative transition metal catalysts prepared on the basis of preformed colloidal nano-particles and stabilized by surfactants are of special interest with regard to industrial applications. The...

XAS-Investigations of Colloidal Precursors for Pt/Rh Bimetallic Catalysts (1997)

Rothe, J., Köhl, G., Hormes, J., Bönnemann, H., Brijoux, W., Siepen, K.

Innovative transition metal catalysts prepared on the basis of preformed colloidal nano-particles and stabilized by surfactants are of special interest with regard to industrial applications. The...

Pt/Ru Colloidal Catalysis : Characterisation and Determination of Kinetics for Methanol Electrooxidation

Vidakovic,T., Christov,M., Sundmacher,K., Nagabhushana,K., Fei,W., Kinge,S., ...

In this study the electrochemical oxidation of methanol was studied on three different PtRu carbon supported catalysts on a membrane electrode assembly (MEA) in a cyclone flow cell [1]. The catalysts...

Pt/Ru Colloidal Catalysis : Characterisation and Determination of Kinetics for Methanol Electrooxidation

Vidakovic,T., Christov,M., Sundmacher,K., Nagabhushana,K., Fei,W., Kinge,S., ...

The activities of three platinum ruthenium carbon supported catalysts of the same nominal composition (Pt:Ru, 1:1) are investigated in respect to methanol oxidation. The catalysts are synthesized by...

Pt/Ru Colloidal Catalysis : Characterisation and Determination of Kinetics for Methanol Electrooxidation

Vidakovic, T., Christov, M., Sundmacher, K., Nagabhushana, K., Fei, W., Kinge, S., ...

In this study the electrochemical oxidation of methanol was studied on three different PtRu carbon supported catalysts on a membrane electrode assembly (MEA) in a cyclone flow cell [1]. The catalysts...