Influence of Preparation Method

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Influence of Preparation Method of MgO on Catalytic Activity for the MPV Reaction of Cyclohexanone with 2-propanol in a Batch Reactor S (202)... 

Considering the importance of the structural characteristics (crystalline phase, crystalline size, and geometrical surface area) in the control of band structure and in the concentration and mobility of photocatalyst charges, studies have been conducted on the influence of preparation methods on the photophysical properties of CdS (Arora et al., 1998 Jing and Guo, 2006). Improvement in CdS photoactivity is observed from preparation methods that lead to CdS phases with good crystallinity and few crystal defects. 

Fig. 3. Influence of preparation method and temperature of hydrothermal treatment of DN-550 support covered with TEOS on its specific surface area and average pore radius...

To investigate of influence of preparation methods on catalytic properties of iron molybdates catalysts with controlled excess of M0O3 were prepared by coprecipitation and sol-gel techniques. Their properties and performances were compared with an industrial catalyst. 

Metallosilicate molecular sieves result when the ions in zeolitic materials (aluminosilicate) are replaced (isomorphous substitution) by other ions. A large number of metal ions have reportedly been incorporated in zeolite lattices. However, doubts arise regarding the location of these metal ions in the framework in many cases. Detailed characterization of the metallosilicates is necessary to identity the nature and location of the metal ions. As an example, the types of V-ions present in vanadosilicate molecular sieves of MEL, MFI and BEA structure types are discussed based on detailed physicochemical characterization of these materials. Also, the influence of preparation methods on the type and location of the V-ions are reported. 

Table 14.2 Influence of preparation methods and precursor washing on the catalytic performance of Au/TS-1 [23, 24].

Moronta, A. Ferrer, V Quero, J. Arteaga, G. Choren, E. Influence of preparation method on the catalytic properties of acid-activated tetramethylammonium-ex-changed clSiys.Appl/ Catalysis A, 2002, 230 1), 127-135. 

There have been several recent reports of corrosion studies involving polypyrrole or polypyrrole composites on iron or steel [217-226]. One study examined the influence of preparation method on the morphology, mechanical properties, and corrosion inhibition of PPy films on steel, concluding that the best mechanical properties (microhardness. Young s modulus, and elastic recovery) and the best corrosion protection were obtained for coatings electrodeposited at constant current and then thermally treated at 80°C for 1 d [219]. 

Zerva, C., Philippopoulos, C. J. (2006). Ceria catalysts for water gas shift reaction influence of preparation method on their activity. Applied Catalysis B Environmental, 67, 105—112. Zhang, Y., Wu, Z., Hong, Z., Gu, X., Xu, N. (2012). Hydrogen-selective zeolite membrane reactor for low temperature water gas shift reaction. Chemical Engineering Journal, 197, 314-321. 

There are many reports on PROX over Au/CeO [76-82], Au/TiOj [75, 80, 83-89], Au/ZrO [75, 80, 90], Au/FePj [91-99], Au/Fe(OH)3 [100, 101], Au/MnO [95], Au/ ZnO [98, 102], Au/ThO [103], and Au/Al Oj [75, 80, 104, 105]. Efforts have been made to smdy the influences of preparation methods/details, pretreatment details, and reaction conditions on catalytic performance. For instance, Chen and coworkers developed a series of Au/TiO catalysts via a photodeposition method [89]. The authors smdied the influences of pH value, power of UV Ughf and irradiation time on the physicochemical and catalytic properties of the catalysts. Scire and coworkers investigated the influences of different preparation methods and details on the catalytic performance of Au/Fe Oj [99] and Au/CeO [82]. Yuan and coworkers prepared gold nanoparticles on CeO with different morphologies and found that the activity in PROX followed the... 

Influence of Preparation Method on the Properties of V-Sb-0 Catalysts for the Ammoxidation of Propane... 

INFLUENCE OF PREPARATION METHOD ON MORPHOLOGICAL AND CATALYTIC PROPERTIES IN METHANE COMBUSTION... 

Janssens S, De Zeure A, Paudel A, Van Humbeeck J, Rombaut P, Van Den Mooter G (2010) Influence of preparation methods on solid state supersaturation of amorphous solid dispersions a case study with itraconazole and eudragit ElOO. Pharm Res 27(5) 775-785 Jasti BR, Berner B, Zhou SL, li X (2004) A novel method for determination of dmg solubility in polymeric matrices. J Pharm Sci 93(8) 2135-2141 Karmwar P, Boetker JP, Graeser KA, Strachan CJ, Rantanen J, Rades T (2011a) Investigations on the effect of different cooling rates on the stability of amorphous indomethadn. Eur J Pharm Sci 44(3) 341-350... 

Da Costa, P., Djega-Mariadassou, G., Beaunier, P., Kaliaguine, S., Vaudreuil, C., Royer, S., and Granger, P. (2009) Influence of preparation methods of LaCoOs on the catalytic performances in the decomposition of N2O. Appl. Catal. B, 91, 596-604. 

The p-block metal oxides that involve typical metal ions (In +, Ga +, Ge +, Sn +, and Sb +) with d ° electronic configuration have been demonstrated to make a stable photocatalyst for the overall splitting of water to produce H2 and O2 when combined with RUO2 as a promoter. The influences of preparation methods,... 

L. Jiang, H. Zang, G. Sun, Q. Xin, Influence of preparation method on the performance of PtSn/C anode electrocatalyst for direct ethanol fuel cells. Chin. J. Catal. 27 (2006) 15-19. 

Supported noble metal catalysts ate most widely used among heterogeneous catalysts because they are active for hydrogenation and dehydrogenation reactions as well as for complete and selective oxidation reactions (1). Although they ate usually prepared via impregnation, the influence of preparation method on their fine stmcture and catalytic properties has not been fully understood yet. 

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