18 research outputs found
Efficient Removal of Polymerization Inhibitors by Adsorption on the Surface of an Optimized Alumina â€
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Mechanism of interconversion of the silica-supported tin alkyl complexes (SiO)<sub>3-<i>n</i></sub>Sn(<i>n</i>-C<sub>4</sub>H<sub>9</sub>)<i><sub>n</sub></i><sub>+1</sub>, <i>n</i>Â =Â 0, 1, 2. Synthesis and characterization of the tin-containing polyhedral oligo-silsesquioxanes [(<i>c</i>-C<sub>5</sub>H<sub>9</sub>)<sub>7</sub>Si<sub>8</sub>O<sub>12</sub>(CH<sub>3</sub>)<sub>2</sub>Sn(<i>n</i>-C<sub>4</sub>H<sub>9</sub>)<sub>3</sub>], [(<i>c</i>-C<sub>5</sub>H<sub>9</sub>)<sub>7</sub>Si<sub>7</sub>O<sub>11</sub> (OH)Sn(<i>n</i>-C<sub>4</sub>H<sub>9</sub>)<sub>2</sub>] and [(<i>c</i>-C<sub>5</sub>H<sub>9</sub>)<sub>7</sub>Si<sub>7</sub>O<sub>12</sub>Sn(<i>n</i>-C<sub>4</sub>H<sub>9</sub>)] as possible models for the expected surface structures
No full textGrafting Reaction of Organotin Complexes on Silica Catalyzed by Tungstic Heteropolyacids
No full textSelective Oxidation of H2S over CuO/Al2O3: Identification and Role of the Sulfurated Species formed on the Catalyst during the Reaction
No full textThe process for preparation of active aluminum hydroxyoxide via flash calcination of gibbsite in a new energy-efficient centrifugal drum-type reactor
No full textSurface organometallic chemistry on metals: evidence for the formation of a stable (Rh-s)(2)Ge(H)(CH2)(4)OH fragment at the surface of a rhodium nanoparticle
No full textA grafted organogermanium moiety was observed on a rhodium surface, starting with an organogermane compound, (Ad)GeH3 (Ad = adamantyl) (Taoufik et al. J. Am. Chem. Soc. 1996, 118, 4167). Recently, new surface germanium complexes with functional groups grafted on Pt and Rh particles were prepared by reaction under hydrogen in propan-2-ol of organogermane complexes H3GeRf (R-f = -R-OH or R-OMe) with the surface of rhodium catalysts (Tena et al. J. Mol. Catal. 1999, 146, 53). It is proposed that grafted organometallic fragments with formula Rh-s[HxGeRyf](2)/SiO2 could be stabilized on the metallic surface. This paper reports the characterization by various physical techniques of the surface complexes obtained by reaction of H3Ge-(CH3)(4)-OH with the reduced surface of rhodium catalysts supported on silica
Low permeability styrene butadiene rubber/boehmite nanocomposites modified with tannic acid
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