Containers porous

Grinding conditions are modified by the nature of supports. Gold clusters with a diameter of 1.5 nm were obtained on an aluminum-containing porous coordination polymer by grinding in an agate mortar in air for 20 min, followed by the reduction in a stream of H2 in N2 at 120°C for 2 h ]50]. In contrast, ball milling is favorable... 

Zeolite-like Transition Metal Containing Porous Compounds... 

In the same spirit DFT studies on peroxo-complexes in titanosilicalite-1 catalyst were performed [3]. This topic was selected since Ti-containing porous silicates exhibited excellent catalytic activities in the oxidation of various organic compounds in the presence of hydrogen peroxide under mild conditions. Catalytic reactions include epoxidation of alkenes, oxidation of alkanes, alcohols, amines, hydroxylation of aromatics, and ammoximation of ketones. The studies comprised detailed analysis of the activated adsorption of hydrogen peroxide with... 

Catechin-immobilizing polymer particles were prepared by laccase-catalyzed oxidation of catechin in the presence of amine-containing porous polymer particles. The resulting particles showed good scavenging activity toward stable free l,l-diphenyl-2-picryl-hydrazyl radical and 2,2 -azinobis(3-ethylbenzothiazoline-6-sulfonate) radical cation. These particles may be applied for packed column systems to remove radical species such as reactive oxygen closely related to various diseases. 

Ikeue, K., Nozaki, S., Ogawa, M., and Anpo, M. (2002) Characterization of self standing Ti-containing porous silica thin films and their reactivity for the photocatalytic reduction of C02 with H20. Catalysis Today, 74 (3-4), 241—248. 

A laboratory combustor containing porous media and burning atomized Jet-A fuel was tested for exhaust emissions and flame temperatures. The major findings of this study are as follows ... 

Performance Equations for Reactions Containing Porous Catalyst Particles 393... 

PERFORMANCE EQUATIONS FOR REACTORS CONTAINING POROUS CATALYST PARTICLES... 

Transfer the solution into thick-walled glass beaker 1 containing porous clay cylinder 2 that functions as a diaphragm and anode vessel (Fig. 130). Fill the anode compartment with 12 N hydrochloric... 

BA-62. A Russian mining expl consisting of solid (non-porous) granular AN and Diesel oil. It is less effective in blasting than Anfex (qv), which contains porous AN Diesel oil... 

A heterogeneous hydrogen-accumulating system containing porous Ti with 0.4 wt% Ni combined with high-purity Ti chips was tested for methane activation.588 Methane conversion to C1-C4 hydrocarbons reached a value of 20% with 50-55% of ethylene at 450° C and 10 atm. The hydrogen formed was accumulated as TiH2. 

Lanthanide-containing porous materials have found many applications in various fields [20-22], They are known as active and selective catalysts for synthesis of higher hydrocarbons (mostly ethane and ethylene) from methane [23], which is of considerable importance for utilizing the reserves of natural gas around the World. Cerium oxide has been employed as a catalyst or as a structural promoter for supported metal oxide catalysts... 

Chromatography. A procedure for separating chemically similar molecules. Segregation is usually carried out on paper or in glass or metal columns with the help of different solvents. The paper or glass columns contain porous solids with functional groups that have limited affinities for the molecules being separated. 

It is noteworthy that, in general, the host framework does not retain its p, porous phase upon guest release, but collapses to the structure of the apohost - the a-phase. There are a few exceptions, in which the host behaves as a zeolite retaining its structural integrity [4-6], and a copper-containing porous open-framework structure has been reported which also withstands partial chemical modification while maintaining its structure [7],... 

It is noteworthy that the pressure where rapid H20 adsorption takes place on the PFA-AN8-H carbon is lower than that of PFA-P7-H. In other words, the N-containing porous carbon has a stronger affinity to H20 than the N-free carbon. Such a lower shift of the uptake pressure due to... 

Both Liq Air and Liq Oxygen expls contain porous combustible material as fuel. These fuels are generally contained in paper or cloth cartridges. Occasionally liq fuels such as petroleum are mixed with the porous solids eg, some of Linde s early compositions (Ref 1) contained kieselguhr mixed with petroleum. Carbonized cork was also used in early Liq Air Expls, although charcoal was the original absorbent. More recently, as liq air was replaced... 

The fluidized-bed section of the calciner contained the air distributor plate, the bed drainage outlet, the feed nozzle, the product overflow line, and the bed charging line. An expanded filter section containing porous stainless steel filters and the off-gas vent line was located directly above the fluidized-bed section. 

Since 1975, every new car sold in the United States has a catalytic converter installed in the exhaust system. This device contains porous, heat-resistant material coated with a catalyst. The purpose of the catalytic converter is to reduce air pollution. 

Wooding, R.A. 1959. The stability of a viscous liquid in a vertical tube containing porous material. Proc. R. Soc. London Ser. A 252 120-134. 

Quantitation of silica sol sizes is accomplished by means of a calibration plot. Theory predicts and experiments confirm a linear plot of the log of the particle diameter versus the retention (or elution) time of the colloid. This straight-line relationship is seen in the data in Figure 9 for a series of silica sols in the 8-25-nm range. Silica sols characterized by SdFFF were used as standards for this calibration plot. The column used for these separations contained porous spherical silica particles that had surfaces covalently coated with diol silane groups. 

---