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Auflistung nach Schlagwort "Adsorption"

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Adsorption and transformation of acetaldehyde on the TiO2 surface

Melchers, Stephanie (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)

During the last decade intensive research work has been carried out in the field of photocatalysis because upon UV illumination photocatalysts such as titanium dioxide (TiO2) are able to catalyze the degradation of organic ...
Anionenkonkurrenz und Anionenselektivität bei der Sorption von Radionukliden durch Organotone

Behnsen, Julia Gesche (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2007)

[no abstract]
Anomalous molecular orbital variation upon adsorption on a wide band gap insulator

Chen, W.; Tegenkamp, Christoph; Pfnür, Herbert; Bredow, T. (College Park, MD : American Institute of Physics, 2010)

It is commonly believed that organic molecules are physisorbed on the ideal nonpolar surfaces of wide band gap insulators with limited variation in the electronic properties of the adsorbate molecule. On the basis of first ...
Correlation of electronic and local structure of 4-hydroxy-thiophenol on NaCl(100) and Ag(100)

Tegenkamp, Christoph; Pfnür, Herbert (College Park, MD : American Institute of Physics, 2003)

The results of the electronic structure of HTP on NaCl(100) and on poly-Ag(100) obtained with UPS and EELS are presented. Due to the relatively weak interactions of HTP on both surfaces studied, and the low saturation ...
Downstream processing of high chain length polysialic acid using membrane adsorbers and clay minerals for application in tissue engineering

Bice, Ismet; Celik, Hilal; Wolff, Christopher; Beutel, Sascha; Zahid, Maria; Hitzmann, Bernd; Rinas, Ursula; Kasper, Cornelia; Gerardy-Schahn, Rita; Scheper, Thomas (Weinheim : Wiley-VCH Verlag, 2013)

Polysialic acid (polySia) is a carbohydrate polymer of varying chain length. It is a promising scaffold material for tissue engineering. In this work, high chain length polySia was produced by an Escherichia coli K1 strain ...
Effect of anions on dispersion of a kaolinitic soil clay: A combined study of dynamic light scattering and test tube experiments

Nguyen, M.N.; Dultz, Stefan; Tran, T.T.T.; Bui, A.T.K. (Amsterdam : Elsevier, 2013)

Dispersion is an important issue for clay leaching in soils. In this study, effects of various anions (Cl-, SO42-, acetate, oxalate and citrate) on dispersion of a kaolinitic soil clay were determined at different pH values ...
Effect of H2O and O2 on the adsorption and degradation of acetaldehyde on anatase surfaces - An in situ ATR-FTIR study

Melchers, Stephanie; Schneider, Jenny; Emeline, Alexei V.; Bahnemann, Detlef W. (Basel : MDPI AG, 2018)

The effect of H2O and O2 on the adsorption and degradation of gaseous acetaldehyde on the anatase TiO2 surface has been studied, in the dark and upon UV illumination, at ambient temperatures. The processes occurring at the ...
Einfluss ausgewählter Bodeneigenschaften auf das Sorptionsverhalten des Cry3Bb1 Proteins

Hunfeld, Heinz (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2011)

[no abstract]
Elektronenspektroskopische Untersuchungen zur Adsorption von Salicylsäure und Wasser an epitaktischen Alkalihalogenidoberflächen

Malaske, Ulrich (Hannover : Universität Hannover, 1997)

[no abstract]
Ferrocene-1,1' -dithiol as molecular wire between Ag electrodes: The role of surface defects

Bredow, T.; Tegenkamp, Christoph; Pfnür, Herbert; Meyer, J.; Maslyuk, V.V.; Mertig, I. (College Park, MD : American Institute of Physics, 2008)

The interaction of ferrocene- 1, 1' -dithiol (FDT) with two parallel Ag(111) surfaces has been theoretically studied at density-functional level. The effect of surface defects on the energetic and electronic structure was ...
Funktionalisierung von Polystyren-Divinylbenzen-Harzen zur selektiven Festphasenextraktion von Aromastoffen

Gehrke, Maik (Hannover : Universität Hannover, 2000)

[no abstract]
Goldinduzierte Nanostrukturierung vicinaler Si(001)-Oberflächen

Meyer zu Heringdorf, Frank-Joachim (Hannover : Universität Hannover, 1999)

[no abstract]
Great Location: About Effects of Surface Bound Neighboring Groups for Passive and Active Fine-Tuning of CO2 Adsorption Properties in Model Carbon Capture Materials

Klinkenberg, Nele; Kraft, Sophia; Polarz, Sebastian (Weinheim : Wiley-VCH, 2021)

Improved carbon capture materials are crucial for managing the CO2 level in the atmosphere. The past focus was on increasing adsorption capacities. It is widely known that controlling the heat of adsorption (ΔHads) is ...
Light driven reactions of single physisorbed azobenzenes

Bazarnik, Maciej; Henzl, Jörg; Czajka, Ryszard; Morgenstern, Karina (Cambridge : Royal Society of Chemistry, 2011)

We present a successful attempt of decoupling a dye molecule from a metallic surface via physisorption for enabling direct photoisomerization. Effective switching between the isomers is possible by exposure to UV light via ...
Metal-organic framework nanofibers via electrospinning

Ostermann, Rainer; Cravillon, Janosch; Weidmann, Christoph; Wiebcke, Michael; Smarsly, Bernd M. (Cambridge : Royal Society of Chemistry, 2011)

A hierarchical system of highly porous nanofibers has been prepared by electrospinning MOF (metal-organic framework) nanoparticles with suitable carrier polymers. Nitrogen adsorption proved the MOF nanoparticles to be fully ...
Metall-organische Gerüstverbindungen : Simulation von Strukturen und Adsorptionseigenschaften mittels Monte Carlo- und Moleküldynamik-Methoden

Lilienthal, Sebastian (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2015)

[no abstract]
Monoschichten ionischer Amphiphile als Modelloberflächen für die Untersuchung der Polyelektrolytadsorption

Engelking, Joachim (Hannover : Universität Hannover, 2000)

[no abstract]
Nanoparticulate dye-semiconductor hybrid materials formed by electrochemical self-assembly as electrodes in photoelectrochemical cells

Nonomura, Kazuteru; Loewenstein, Thomas; Michaelis, Esther; Kunze, Peter; Schiek, Manuela; Reemts, Jens; Iwaya, Mirian Yoshie; Wark, Michael; Rathousky, Jiri; Al-Shamery, Katharina; Kittel, Achim; Parisi, Jürgen; Wöhrle, Dieter; Yoshida, Tsukasa; Schlettwein, Derck (Berlin : De Gruyter, 2009)

Dye-sensitized zinc oxide thin films were prepared, characterized and optimized for applications as photoelectrochemically active electrodes. Conditions were established under which crystalline thin films of ZnO with a ...
Organic molecules on wide-gap insulating surfaces from first-principles

Chen, Wei (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2011)

[no abstract]
Photocatalytic degradation of the herbicide imazapyr: Do the initial degradation rates correlate with the adsorption kinetics and isotherms?

Atitar, M. Faycal; Bouziani, Asmae; Dillert, Ralf; El Azzouzi, Mohamed; Bahnemann, Detlef W. (Cambridge : Royal Society of Chemistry, 2018)

The objective of this work is to correlate the photocatalytic degradation of the herbicide imazapyr in aqueous suspensions of the commercially available Evonik Aeroxide TiO2 P25 with the dark adsorption phenomena considering ...

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