Glycerin‐Oxidation mit magnetisch abtrennbaren Nanokatalysatoren

作者: Arno Behr , Ken Aulia Irawadi

DOI: 10.1002/CITE.201400170

关键词:

摘要: Nanopartikulare Gold- und Gold-Platin-Katalysatoren aufgetragen auf Magnetit als Tragermaterial wurden zur aeroben Glycerin-Oxidation eingesetzt. Mittels Transmissionselektronenmikroskopie konnte fur den Gold-Katalysator eine ikosaedrische Morphologie Gold-Platin-Katalysator blutenahnliche Struktur nachgewiesen werden. Analysen mit dynamischer Lichtstreuung bestatigten beide Katalysatortypen mittlere Partikelgrose von 30 nm gute Stabilitat uber einen Zeitraum mindestens vier Wochen. Durch magnetische Abtrennung konnten Katalysatoren erfolgreich aus dem Reaktionsmedium zuruckgewonnen Ein Katalysatoraustrag wurde dabei nicht beobachtet die wiederverwendeten wiesen nur geringe Veranderungen auf. Nanoparticle gold and gold-platinum catalysts supported on magnetite particles were used in the aerobic glycerol oxidation. Transmission electron microscopy analysis confirmed an icosahedral morphology of catalyst a flower-like structure for catalyst. Dynamic light scattering mean diameter both catalysts. This particle size was relatively stable more than one month. The easily recoverable from reaction medium by means magnetic force. No metal leaching observed successfully reused showed only slight alteration.

参考文章(29)
Jilei Xu, Hongye Zhang, Yanfei Zhao, Bo Yu, Sha Chen, Yanbin Li, Leiduan Hao, Zhimin Liu, Selective oxidation of glycerol to lactic acid under acidic conditions using AuPd/TiO2 catalyst Green Chemistry. ,vol. 15, pp. 1520- 1525 ,(2013) , 10.1039/C3GC40314A
Meenakshisundaram Sankar, Nikolaos Dimitratos, David W. Knight, Albert F. Carley, Ramchandra Tiruvalam, Christopher J. Kiely, Damian Thomas, Graham J. Hutchings, Oxidation of Glycerol to Glycolate by using Supported Gold and Palladium Nanoparticles Chemsuschem. ,vol. 2, pp. 1145- 1151 ,(2009) , 10.1002/CSSC.200900133
B. N. Zope, D. D. Hibbitts, M. Neurock, R. J. Davis, Reactivity of the Gold/Water Interface During Selective Oxidation Catalysis Science. ,vol. 330, pp. 74- 78 ,(2010) , 10.1126/SCIENCE.1195055
Wenbin Hu, Daniel Knight, Brian Lowry, Arvind Varma, Selective Oxidation of Glycerol to Dihydroxyacetone over Pt−Bi/C Catalyst: Optimization of Catalyst and Reaction Conditions Industrial & Engineering Chemistry Research. ,vol. 49, pp. 10876- 10882 ,(2010) , 10.1021/IE1005096
Benjamin Katryniok, Hiroshi Kimura, Elżbieta Skrzyńska, Jean-Sébastien Girardon, Pascal Fongarland, Mickaël Capron, Rémy Ducoulombier, Naoki Mimura, Sébastien Paul, Franck Dumeignil, Selective catalytic oxidation of glycerol: perspectives for high value chemicals Green Chemistry. ,vol. 13, pp. 1960- 1979 ,(2011) , 10.1039/C1GC15320J
Shaojun Guo, Shaojun Dong, Erkang Wang, A general route to construct diverse multifunctional Fe3O4/metal hybrid nanostructures. Chemistry: A European Journal. ,vol. 15, pp. 2416- 2424 ,(2009) , 10.1002/CHEM.200801942
Faouzi Chahdoura, Christian Pradel, Montserrat Gómez, Palladium Nanoparticles in Glycerol: A Versatile Catalytic System for CX Bond Formation and Hydrogenation Processes Advanced Synthesis & Catalysis. ,vol. 355, pp. 3648- 3660 ,(2013) , 10.1002/ADSC.201300753
Svetlana Chornaja, Konstantin Dubencov, Valdis Kampars, Olga Stepanova, Svetlana Zhizhkun, Vera Serga, Lidija Kulikova, Oxidation of glycerol with oxygen in alkaline aqueous solutions in the presence of supported palladium catalysts prepared by the extractive-pyrolytic method Reaction Kinetics, Mechanisms and Catalysis. ,vol. 108, pp. 341- 357 ,(2013) , 10.1007/S11144-012-0516-3
Silvio Carrettin, Paul McMorn, P. Johnston, Ken Griffin, Christopher J. Kiely, Gary A. Attard, Graham J. Hutchings, Oxidation of Glycerol Using Supported Gold Catalysts Topics in Catalysis. ,vol. 27, pp. 131- 136 ,(2004) , 10.1023/B:TOCA.0000013547.35106.0D