Nano catalysts

A Continuous Process for Separation of Wax from Iron Nano-Catalyst Particles by Using Cross-Flow Filtration... 

Separation of Wax from Iron Nano-Catalyst Particles... 

I2M.U. Jurczyk, S.S. Srinivasan, A. Kumar, Y. Goswami, E. Stefanakos, E., Effects of nano catalysts on a LiBH4/LiNH2 system for hydrogen storage, MS T Conference, Detroit, Ml, (2007). 

The authors gratefully acknowledge the CREST Program Nano Catalyst of JSTand NEDO for financial support. They are also grateful to Sumitomo Trading Co. and Mr Uemura Masaaki for financial support and continuous cooperation during this study. 

Besides activity, durability of metal electrode nano-catalysts in acid medium has become one of the most important challenges of low-temperature fuel cell technologies. It has been reported that platinum electrode surface area loss significantly shortens the lifetime of fuel cells. In recent years, platinum-based alloys, used as cathode electrocatalysts, have been found to possess enhanced stability compared to pure Pt. The phenomenon is quite unusual, because alloy metals, such as Fe, Co and Ni, generally exhibit greater chemical and electrochemical activities than pure Pt. Some studies have revealed that the surface stmcture of these alloys differs considerably from that in the bulk A pure Pt-skin is formed in the outmost layer of the alloys due to surface segrega-... 

Novel Nano Catalysts on the Base of Hyper-crosslinked Polystyrene for Carbohydrates Oxidation... 

Novel nano catalysts on the base ofhypercrosslinked polystyrene... 

In this section we expand the conclusions of the previous section to bare transition metal clusters in order to test them again and to identify another, cooperative (or cluster ) effect that affects the reactivity of transition metals. In practice, transition metals are important ingredients of heterogeneous and nano-catalysts, therefore clear understanding of their reactivity at electronic level is essential to unravel the secret of their catalytic activities. Diverse classes of experimental and theoretical studies already have provided a wealth of information concerning the electronic structure, spectroscopic as well as dynamic properties of variety types of clusters, including Ptn [6],Pdn [7],Fe+ [8],COn [9], and Nbn [10]. 

Chen, C.C., Wang, C.C., 2006. Cross-linking of cotton cellulose with succinic acid in the presence of titanium dioxide nano-catalyst under UV irradiation. J. Sol-Gel Sci. Technol. 40, 31-38. 

Dutta A, Mahapatra SS, Datta J (2011) High performance PtPdAu nano-catalyst for ethanol oxidation in alkaline media for fuel cell applications. Int J Hydrogen Energy 36(22) 14898-14906... 

Figure 4.7 T5rplcal GDE structure fabricated using MSP20 carbon black nano catalysts used are NiO and NiCo204 in which PTFE was used as a binder.

In addition to homogeneous TM catalysts, some heterogeneous TM catalysts, nano catalysts and even biomimetic and electrolytic catalysts have also been applied... 

Bock C, Paquet C, Couillard M, Button G, MacDougall B. Size selected synthesis of PtRu nano-catalysts and their applieation for organic electro-oxidation reactions. J Am Chem Soc 2004 126(25) 8028. 

Mackenzie, K., Hildebrand, H., and Kopinke, F. D. 2007. Nano-catalysts and colloidal suspensions of carbo-iron for environmental application. NSTI-Nanotech, 2, 639-642. 

Simoes, M., Baranton, S. and Coutanceau, C. (2010). Electro-oxidation of Glycerol at Pd Based Nano-catalysts for an Application in Alkaline Fuel Cells for Chemicals and Energy Cogeneration, Catal. B Environ., 93, pp. 354-362. 

Aresta M, Dibenedetto A, Pastore C, Cuocci C, Aresta B, Cometa S, De Giglio E (2008) Cerium(IV)oxide modification by inclusion of a hetero-atom a strategy for producing efficient and robust nano-catalysts for methanol carboxylation. Catal Today 137 125-131... 

Figure 2.16. A Pt nano-catalyst on an MWCNT prepared by a colloidal method. Some CNTs seem to have straight geometries while others clearly bend, causing irregular structures.

Bock, C., Paquet, C., Couillard, M., Botton, G.A. MacDougall, B.R. Size-selected synfliesis of PtRu nano-catalysts Reaction and size control mechanism. J. Am. Chem. Soc. 126 (2004), pp. 8028-8037. 

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