Catalyst Recovery and Recycling Facilitated by Magnetic Separation: Iridium and Other Metal Nanoparticles
作者： Marcos J. Jacinto , Fernanda P. Silva , Pedro K. Kiyohara , Richard Landers , Liane M. Rossi
关键词:
摘要: The immobilization of metal nanoparticles in magnetic responsive solids allows the easy, fast, and clean separation catalysts; however, efficiency this process depends on a strong metal–support interaction. This interaction can be enhanced by functionalizing support surface with amino groups. Our catalyst contains an inner core magnetite that enables from liquid systems external silica suitable for further modification organosilanes. We report herein magnetically recoverable amino-functionalized captured iridium species solutions produced highly active hydrogenation negligible leaching. An analogous Ir0 prepared use nonfunctionalized shows higher degree leaching into products. catalytic performance alkenes is compared Rh Pt catalysts.
core.ac.uk
fapesp.br
sci-hub.se 参考文章(39)
Robin J. White, Rafael Luque, Vitaliy L. Budarin, James H. Clark, Duncan J. Macquarrie, Supported metal nanoparticles on porous materials. Methods and applications. Chemical Society Reviews. ,vol. 38, pp. 481- 494 ,(2009) , 10.1039/B802654H
Yin Lin, Richard G. Finke, A More General Approach to Distinguishing "Homogeneous" from "Heterogeneous" Catalysis: Discovery of Polyoxoanion- and Bu4N+-Stabilized, Isolable and Redissolvable, High-Reactivity Ir.apprx.190-450 Nanocluster Catalysts Inorganic Chemistry. ,vol. 33, pp. 4891- 4910 ,(1994) , 10.1021/IC00100A012
Chanel K. Yee, Rainer Jordan, Abraham Ulman, Henry White, Alexander King, Miriam Rafailovich, Jonathan Sokolov, Novel One-Phase Synthesis of Thiol-Functionalized Gold, Palladium, and Iridium Nanoparticles Using Superhydride Langmuir. ,vol. 15, pp. 3486- 3491 ,(1999) , 10.1021/LA990015E
Marcos J. Jacinto, Pedro K. Kiyohara, Sueli H. Masunaga, Renato F. Jardim, Liane M. Rossi, Recoverable rhodium nanoparticles: Synthesis, characterization and catalytic performance in hydrogenation reactions Applied Catalysis A: General. ,vol. 338, pp. 52- 57 ,(2008) , 10.1016/J.APCATA.2007.12.018
Ercan Bayram, Mehmet Zahmakıran, Saim Özkar, Richard G. Finke, In Situ Formed “Weakly Ligated/Labile Ligand” Iridium(0) Nanoparticles and Aggregates as Catalysts for the Complete Hydrogenation of Neat Benzene at Room Temperature and Mild Pressures Langmuir. ,vol. 26, pp. 12455- 12464 ,(2010) , 10.1021/LA101390E
Robert Crabtree, Iridium compounds in catalysis ChemInform. ,vol. 11, pp. 331- 337 ,(1979) , 10.1021/AR50141A005
Peter B. Kettler, Platinum group metals in catalysis: Fabrication of catalysts and catalyst precursors Organic Process Research & Development. ,vol. 7, pp. 342- 354 ,(2003) , 10.1021/OP034017O
Lisa Starkey Ott, Sarah Campbell, Kenneth R. Seddon, Richard G. Finke, Evidence that imidazolium-based ionic ligands can be metal(0)/nanocluster catalyst poisons in at least the test case of iridium(0)-catalyzed acetone hydrogenation. Inorganic Chemistry. ,vol. 46, pp. 10335- 10344 ,(2007) , 10.1021/IC700976Z
Fernanda P. Silva, Marcos J. Jacinto, Richard Landers, Liane M. Rossi, Selective Allylic oxidation of Cyclohexene by a Magnetically Recoverable Cobalt Oxide Catalyst Catalysis Letters. ,vol. 141, pp. 432- 437 ,(2011) , 10.1007/S10562-010-0512-Z
Jairton Dupont, Gledison S. Fonseca, Alexandre P. Umpierre, Paulo F. P. Fichtner, Sergio R. Teixeira, Transition-Metal Nanoparticles in Imidazolium Ionic Liquids: Recycable Catalysts for Biphasic Hydrogenation Reactions Journal of the American Chemical Society. ,vol. 124, pp. 4228- 4229 ,(2002) , 10.1021/JA025818U