Covalent Immobilization of Imidazolium Cations Inside a Silica Support: Palladium-Catalyzed Olefin Hydrogenation

Journal article
(Original article)


Publication Details

Author(s): Wang L, Shylesh S, Dehe D, Philippi T, Doerr G, Seifert A, Zhou Z, Hartmann M, Klupp Taylor R, Jia M, Ernst S, Thiel WR
Journal: ChemCatChem
Publisher: Wiley-VCH Verlag
Publication year: 2012
Volume: 4
Journal issue: 3
Pages range: 395-400
ISSN: 1867-3880
Language: English


Abstract


Mesoporous organosilica materials with different contents of bistrialkoxysilyl imidazolium salts in the framework were synthesized by a one-step synthesis. Textural characterization of the materials confirmed that the morphology and surface properties of the imidazolium-bridged organosilicas depended critically on the amount of organic groups in the framework, whereas solid-state NMR characterization showed that the imidazolium fragments were integrated covalently into the framework. Further reaction of these materials with Pd(OAc)(2), followed by reduction with NaBH4 yielded palladium nanoparticles stabilized in the mesoporous organosilicas. The stabilizing effect of the imidazolium cations and the mesostructure contributed to the high activity, selectivity, and stability of the palladium nanoparticles and allowed olefin hydrogenation under mild reaction conditions.



FAU Authors / FAU Editors

Hartmann, Martin Prof. Dr.
Professur für Katalyse
Klupp Taylor, Robin Prof.
Professur für Nanostructured Particles
Zhou, Zhou Dr.
Interdisziplinäres Zentrum Erlangen Catalysis Resource Center (ECRC)


Additional Organisation
Interdisziplinäres Zentrum Erlangen Catalysis Resource Center (ECRC)
Exzellenz-Cluster Engineering of Advanced Materials


External institutions
Jilin University (JLU) / 吉林大学
Technische Universität Chemnitz
Technische Universität Kaiserslautern


How to cite

APA:
Wang, L., Shylesh, S., Dehe, D., Philippi, T., Doerr, G., Seifert, A.,... Thiel, W.R. (2012). Covalent Immobilization of Imidazolium Cations Inside a Silica Support: Palladium-Catalyzed Olefin Hydrogenation. ChemCatChem, 4(3), 395-400. https://dx.doi.org/10.1002/cctc.201100329

MLA:
Wang, Lei, et al. "Covalent Immobilization of Imidazolium Cations Inside a Silica Support: Palladium-Catalyzed Olefin Hydrogenation." ChemCatChem 4.3 (2012): 395-400.

BibTeX: 

Last updated on 2018-10-08 at 06:56