Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Gunter Israel"'
Autor:
Diana Ster, Lutfor Rahman, Gunter Israel, Carsten Tschierske, Sandeep P. Kumar, Gurumurthy Hegde
Publikováno v:
Liquid Crystals. 36:397-407
Three novel bent-shaped monomers, namely 1,3-phenylene bis-{4-[4-(n-allyloxyalkyloxy)phenylazo]benzoate} 5a–c, containing azobenzene as side arms, resorcinol as central units and terminal double bonds as polymerisable functional groups were synthes
Autor:
Gunter Israel, Cornelia Damm
Publikováno v:
Zeitschrift für Physikalische Chemie. 223:719-732
A commercial anatase pigment was coated with copper, silver, palladium, platinum and gold, respectively. That means the oxidation potential of the deposit was varied from about +0.3 V (vs. NHE) to about +1.5 V (vs. NHE). The photocatalytic activity o
Autor:
Christoph Wagner, Gunter Israel, Ralph Kluge, Cornelia Damm, Dirk Steinborn, Sebastian Schwieger, Frank W. Heinemann
Publikováno v:
Organometallics. 28:2485-2493
The bis(acetyl)-bridged complex [{Pt(COMe)2}n] (2) has been prepared from the platina-β-diketone [Pt2{(COMe)2H}2(μ-Cl)2] (1) with hexamethyldisilazane. Reactions of complex 2 with the monodentate P...
Publikováno v:
Journal of Pineal Research. 44:366-372
When organic compounds are irradiated with UV light at 254 nm, part of their covalent bonds can dissociate if the compound absorbs light at that wavelength. Therefore, photo-degradation depends strongly on the wavelength used. The energy of a light q
Autor:
Gunter Israel, C. Damm
Publikováno v:
Dyes and Pigments. 75:612-618
Silver was deposited onto the surface of different commercial titanium dioxides namely, the pigment “K1001” and the two photocatalysts “P-25” and “Hombikat-UV”. Both the coated and the untreated materials were used as catalysts for the he
Publikováno v:
Dyes and Pigments. 74:335-342
Heterostructured TiO 2 samples were prepared by precipitation of Al 2 O 3 , Fe 2 O 3 hydrate, AgCl and Ag 2 O, respectively, onto the surface of a commercial anatase type pigment. The photopolymerization of an ethoxylated trisacrylate was used as a t
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 174:171-179
Samples of TiO2 having different BET surface areas and different numbers of primary crystallites per secondary particle were prepared by annealing amorphous TiO2 at different temperatures. The photocatalytic activity of these TiO2 samples was checked
Publikováno v:
Dyes and Pigments. 56:151-157
The Influence of crystal structure and surface coating on the photoelectric properties of TiO2 pigments was studied using the transient photo-EMF. Amorphous TiO2 did not show any photo-EMF signal showing that it is not a photoconductor. The crystalli
Publikováno v:
Journal of Fluorescence. 12:219-224
We have found that photoinduced pyridine ring cleavage-closure occurs in polymeric viscous solution, because in certain polymer solutions, pyridine can serve as a photo-modulated crosslinker. We suggest this reaction as a way to control a polymer's o
Autor:
Franz Muller, Gunter Israel, Silvio Gablenz, Hans-Peter Abicht, Michael Rössel, Cornelia Damm, Andreas Röder
Publikováno v:
Solid State Sciences. 3:291-299
Preparation of core-shell structured TiO 2 –BaCO 3 particles as precursor of BaTiO 3 genesis, proceeds using a two step procedure, by first coating the TiO 2 core by Ba(OH) 2 shell followed by conversion of the shell region with CO 2 gas by the for