supported catalysts
Electro-Oxidation Activity of Pt-CeOx Carbon Supported Catalysts
... both GF and GDL supported catalysts. However it is seen that the double layer capacitance was much higher on the graphite foil which typically indicated higher electrochemical surface area. This may be due ...
15
DESIGN AND DEVELOPMENT OF PLATINUM AND RUTHENIUM METAL SUPPORTED CATALYSTS FOR SELECTIVE ORGANIC TRANSFORMATONS
... preparation and characterization of sulphated zirconia catalyst and its application for acylation of alcohols, phenols and amines under solvent free conditions, In Chapter 4 the preparation and characterization of ...
12
Evaluation of Supported Catalysts for Liquid Phase Reactions122-127
... I n establishing the optimum conditions for performing a catalysed liquid-phase reaction, the most important variables to consider are catalyst weight, temperature, hydrogen[r] ...
6
N,E heteroleptic ligands in the Heck reaction and other carbon carbon bond formation processes
... A simple and direct method was developed for the synthesis of supported catalysts based upon Merrifield, Wang, and Monolith polymeric supports containing the 2methylthiomethylpyridine do[r] ...
206
Mechanism of ethanol partial oxidation over titania supported vanadia catalysts: geometric and electronic structure consequences on reaction kinetics
... acidic catalysts 97–99 ...for supported metal oxide ...vanadium supported catalysts, reporting the turnover rates as obtained by normalizing reaction rates by the number of metal atoms present ...
234
IN SITU SILICA SUPPORTED METALLOCENE CATALYSTS FOR ETHYLENE POLYMERIZATION
... surface area of 1100 m 2 .gr. -1 showed a catalyst activity of 11.3 (kg PE/(mol Zr.hr)), while the micro- sized supports, namely PQ-3060 and EP-12, with the respective surface area of 590 and 390 m 2 .gr. -1 showed a ...
9
Synthesis and characterization of supported pt and ru catalysts: effect of smsi for selective hydrogenation
... The catalysts were characterized by BET surface area, TPR, HRTEM, XRD and XPS ...metal supported interaction (SMSI effect) of supported catalysts reduced at 575°C and selectivity to activate ...
8
Performance of Platinum Black and Supported Platinum Catalysts in a Direct Methanol Fuel Cell
... Catalyst utilization studies are very important in PEM and Direct Methanol Fuel cell systems. This article studies the effect of nafion content on the catalyst utilization of Platinum Black and Platinum/Carbon electrodes ...
10
Titanium and copper oxide based catalysts for the in-situ reactions of methanation and desulfurization in the removal of sour gases from simulated natural gas
... fresh supported catalysts and after in-situ reactions testing catalysts (spent ...fresh catalysts showed relatively narrow pore size compared to the spent ...
9
Greener and sustainable method for alkene epoxidations by polymer-supported Mo(VI) catalysts
... epoxidation catalysts with a number of Mo(VI) based systems looking particularly attractive for scale-up and commercial exploitation (Sherrington, ...polymer- supported catalysts that have been ...
15
Porous hybrid materials for heterogeneous catalysis and gas storage
... Michael product in 88% ee and 96% ee, respectively. Sasai et al. attributed this drastic increase in ee over the bent derivatives (1.5a and 1.5b) to the positioning of the dihydroxy groups at the opposite sides of the ...
183
Active site nature of magnesium dichloride-supported titanocene catalysts in olefin polymerization
... titanocene catalysts (Cp x TiCl 4-x / MgCl 2 , x = 1 or 2) was investigated in propylene polymerization ...Ziegler-Natta catalysts, but has been much less employed for the heterogenization of metallocene ...
7
Exploring the Association between Network, Cognitive, Structural Social Capital and the Risk of Clinical Depression in Taiwan
... Ethylene is the building block for many chemical intermediates in the petrochemical industry. The current worldwide ethylene production is over 150 million tons per year and demand increases by 3-5% annually. However, ...
125
Deoxygenation in anisole decomposition over bimetallic catalysts supported on HZSM-5
... fresh catalysts and the spent catalysts were analysed by EDS tests in order to identify and quantify the main elements present in the surface, as shown in Table 2 and Supplementary Material S7 and ...fresh ...
48
Time Resolved XANES Studies on Used Silica Supported Cobalt Catalysts
... used catalysts for Fischer-Tropsch synthesis, time-resolved X-ray absorption near edge structure (TR-XANES) technique was ...The catalysts were prepared by incipient wetness impregnation method with %Co ...
8
An Analysis of Selected Art Songs for High Voice by Adolphus Hailstork, A Performer's Guide
... It has been reported that potassium can enhance the activity and selectivity for some reactions, such as ammonia synthesis, CO hydrogenation, and Fischer-Tropsch synthesis (FTS) 91-93 . The mechanism of K promotion for ...
198
Noble Metal and Mn3O4 Supported Carbon Nanotubes: Enhanced Catalysts for Ethanol Electrooxidation
... To reduce the poisoned catalyst as mentioned above and the production cost of the fuel cells, one of the key challenges is the development of catalysts with a lower content of Pt [2, 5, 6]. Binary and ternary ...
16
γ Alumina Supported Ni Mo Carbides as Promising Catalysts for CO2 Methanation
... Though the presence of carbon-containing compounds, and thus the C 1s peak area, may be dependent on sample/device contamination, the Mo/C ratios are somehow smaller for the two carburized catalyst, in comparison to the ...
11
Morphology control of clay-mineral particles as supports for metallocene catalysts in propylene polymerization
... Preparation of supported metallocene catalysts All operations were carried out under dry N 2 atmosphere using standard Schlenk techniques. To a three necked flask (1 L) equipped with a mechanical agitation ...
14
Propane Oxidative Dehydrogenation Under Oxygen-free Conditions Using Novel Fluidizable Catalysts: Reactivity, Kinetic Modeling and Simulation Study
... The above equation was fitted to the experimental data using the Mathematica Nonlinear Model Fit built-in function at a heating rate of 15°C/min for all samples. In addition, the above differential equation was solved ...
156