Graphene oxide catalyst

Kim, J.D., et ah, Preparation of reusable Ag-decorated graphene oxide catalysts for decarboxylative cycloaddition. Journal of Materials Chemistry, 2012. 22(38) p. 20665-20670. 

The activity of elemental carbon as a metal-free catalyst is well established for a couple of reactions, however, most literature still deals with the support properties of this material. The discovery of nanostructured carbons in most cases led to an increased performance for the abovementioned reasons, thus these systems attracted remarkable research interest within the last years. The most prominent reaction is the oxidative dehydrogenation (ODH) of ethylbenzene and other hydrocarbons in the gas phase, which will be introduced in a separate chapter. The conversion of alcohols as well as the catalytic properties of graphene oxide for liquid phase selective oxidations will also be discussed in more detail. The third section reviews individually reported catalytic effects of nanocarbons in organic reactions, as well as selected inorganic reactions. 

Kottakkat, T. and Bron, M. (2014) One-pot synthesis of Co-incorporated N-doped reduced graphene oxide as ORR catalyst in alkaline medium. ChemElectroChem, 1 (12), 2163-2171. 

Pyun, J., Graphene Oxide as Catalyst Application of Carbon Materials beyond Nanotechnology. Angewandte Chemie International Edition 2011, 50 (1), 46-48. 

Yu, X. Huo, Y. Yang, J. Chang, S. Ma, Y Huang, W, Reduced Graphene Oxide Supported Au Nanoparticles as an Efficient Catalyst for Aerobic Oxidation of Benzyl Alcohol. Applied Surface Science 2013,280,450-455. 

Li, F. Zhao, J. Chen, Z., Fe-Anchored Graphene Oxide A Low-Cost and Easily Accessible Catalyst for Low-Temperature CO Oxidation. Journal of Physical Chemistry C 2011,116 (3), 2507-2514. 

Choi, Y Bae, H. S. Seo, E. Jang, S. Park, K. H. Kim, B.-S., Hybrid Gold Nanoparticle-Reduced Graphene Oxide Nanosheets as Active Catalysts for Highly Efficient Reduction of Nitroarenes. Journal of Materials Chemistry 2011,21 (39), 15431-15436. 

Keywords Graphene oxide, reduced graphene oxide, Au nanoparticles, composites material, catalyst... 

Fig. 8 Fe-Nx/rGO catalyst scheme of the ideal structure (a) TEM (b), XRD (c together with graphene oxide GO, rGO and the catalyst without iron, Nx/rGO), and XPS (d) analyses. Data from [67, 101]...

K. Vinodgopal, B. Neppolian, N. Salleh, I.V. Lightcap,F. Grieser, M. Ashokkumar, T.T. Ding, P.V. Kamat, Duel-frequency ultrasound for designing two dimensional catalyst surface reduced graphene oxide-Pt composite. Coll. Surf. A Physicochem. Eng. Aspects 409, 81-87 (2012)... 

The combination of several of the above described approaches can be also used. Thus, precious metal catalysts can be supported on nanomaterials and combined with ILs. The supported gold NPs on graphene oxide (GO) with an ionic liquid framework (Au GO-IL) has been shown to be a highly active, and leaching tests, such as hot filtration test and AAS analysis, indicate that the catalytic reaction is mainly heterogeneous in nature. The reusability of this catalyst was tested for 5 x without a significant decrease in its catalytic... 

Movahed SK, Lehi NF, Dabiri M. Gold nanoparticle supported on ionic liquid modified graphene oxide as an efficient and recyclable catalyst for one-pot oxidative A3-coupling reaction of benzyl alcohob. RSC Adv. 2014 4 42155-42158. 

A relatively new area of research is the immobilisation of Pd-NHC complexes on graphene oxide (GO). The complexes have been covalently tethered via a number of different organic bridges, or through -interaction between GO and a pyrene group attached to the NHC. The recyclable nature of these catalysts was demonstrated in Suzuki coupling, although the number of recycles was relatively low (5-6). " The catalyst tethered by... 

Additional studies have been conducted on various classes of alternative catalysts materials. Nazar and co-workers have recently reported that nanocrystalline C03O4 grown on reduced graphene oxide promoted a significant... 

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