Redox-active silica nanoparticles. Part 1. Electrochemistry and catalytic activity of spherical, nonporous silica particles with nanometric diameters and covalently bound redox-active modifications

Nonporous spherical silica nanoparticles resulting from a controlled Stöber process are covalently surface modified with redox-active molecules. Ferrocene, a ruthenium(II) complex with an N2P2Cl2 ligand set, and a sterically hindered biphenylamine are used as modifiers. The resulting materials are c...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 22(2006), 25 vom: 05. Dez., Seite 10605-11
1. Verfasser: Budny, Anna (VerfasserIn)
Weitere Verfasser: Novak, Filip, Plumeré, Nicolas, Schetter, Bernd, Speiser, Bernd, Straub, Diana, Mayer, Hermann A, Reginek, Michaela
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Organometallic Compounds Platinum 49DFR088MY Silicon Dioxide 7631-86-9 Ruthenium 7UI0TKC3U5
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245 1 0 |a Redox-active silica nanoparticles. Part 1. Electrochemistry and catalytic activity of spherical, nonporous silica particles with nanometric diameters and covalently bound redox-active modifications 
264 1 |c 2006 
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520 |a Nonporous spherical silica nanoparticles resulting from a controlled Stöber process are covalently surface modified with redox-active molecules. Ferrocene, a ruthenium(II) complex with an N2P2Cl2 ligand set, and a sterically hindered biphenylamine are used as modifiers. The resulting materials are characterized by physical, spectroscopic, electrochemical, and chemical methods. The cyclic voltammetric behavior is studied in detail and reveals effects of charge transport by electron hopping along the surface of particles adsorbed on a Pt electrode. The ruthenium(II) complex remains catalytically active with respect to hydrogenation upon immobilization on the particles. Thus, the respective material provides a heterogenized homogeneous hydrogenation catalyst on a solid support 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Novak, Filip  |e verfasserin  |4 aut 
700 1 |a Plumeré, Nicolas  |e verfasserin  |4 aut 
700 1 |a Schetter, Bernd  |e verfasserin  |4 aut 
700 1 |a Speiser, Bernd  |e verfasserin  |4 aut 
700 1 |a Straub, Diana  |e verfasserin  |4 aut 
700 1 |a Mayer, Hermann A  |e verfasserin  |4 aut 
700 1 |a Reginek, Michaela  |e verfasserin  |4 aut 
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