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Carbonates, preparation

The adsorption isotherms are often Langmuirian in type (under conditions such that multilayer formation is not likely), and in the case of zeolites, both n and b vary with the cation present. At higher pressures, capillary condensation typically occurs, as discussed in the next section. Some N2 isotherms for M41S materials are shown in Fig. XVII-27 they are Langmuirian below P/P of about 0.2. In the case of a microporous carbon (prepared by carbonizing olive pits), the isotherms for He at 4.2 K and for N2 at 77 K were similar and Langmuirlike up to P/P near unity, but were fit to a modified Dubninin-Radushkevich (DR) equation (see Eq. XVII-75) to estimate micropore sizes around 40 A [186]. [Pg.663]

Fig. 4.17 Plot of log,o(n/(mmol g ) against logfo (p7p) for the adsorption of benzene at 20°C on a series of progressively activated carbons prepared from sucrose. (Courtesy Dubinin.)... Fig. 4.17 Plot of log,o(n/(mmol g ) against logfo (p7p) for the adsorption of benzene at 20°C on a series of progressively activated carbons prepared from sucrose. (Courtesy Dubinin.)...
Fig. 4.23 Adsorption isotherms of butane vapour at difTerent temperatures on a sample of carbon (prepared by heating a mixture of coke and pitch at 600°C), burnt off by 0.27%. Fig. 4.23 Adsorption isotherms of butane vapour at difTerent temperatures on a sample of carbon (prepared by heating a mixture of coke and pitch at 600°C), burnt off by 0.27%.
Fig. 4.24 Heat of immersion of a carbon (prepared by pyrolysis of Saran Polymer A) in different liquids at 300 K. The liquids for points 1-6 were (I) methanol (2) benzene (3) n-hexane (4) 3-methyl benzene (5) 2,2-dimethyl butane (6) 2,2,4-trimethyl pentane. The abscissae represent the molar volumes of the liquids. (Redrawn from the original diagram of Barton, Beswick and Harrison. " )... Fig. 4.24 Heat of immersion of a carbon (prepared by pyrolysis of Saran Polymer A) in different liquids at 300 K. The liquids for points 1-6 were (I) methanol (2) benzene (3) n-hexane (4) 3-methyl benzene (5) 2,2-dimethyl butane (6) 2,2,4-trimethyl pentane. The abscissae represent the molar volumes of the liquids. (Redrawn from the original diagram of Barton, Beswick and Harrison. " )...
Typical adsorption isotherms for light hydrocarbons on activated carbon prepared from coconut shells ate shown in Figure 11 (46). The polarizabihties and boiling points of these compounds increase in the order... [Pg.278]

J. D. Buckley, ed.. Advanced Materials, Composite Carbon, Preparation Symposium, American Ceramics Society, Inc., Columbus, Ohio, 1972. Papers on composite materials including carbon and graphite or nitride composites. [Pg.39]

Chalk is a calcium carbonate prepared by precipitation. It is used in many polishing compounds including dentifrices. [Pg.494]

An ethyl carbonate, prepared and cleaved by conditions similar to those described for a methyl carbonate, was used to protect a hydroxyl group in glucose. ... [Pg.105]

In an early synthesis a methyl carbonate, prepared by reaction of a phenol with methyl chloroformate, was cleaved selectively in the presence of a phenyl ester. ... [Pg.165]

Additional samples were prepared from the three resins and were heated at temperatures between 940° and 1100°, under different inert gas flow rate and with different heating rates. The samples have different microporosities and show different capacities for lithium insertion. The results for all the carbons prepared from resins are shown in Fig. 32, which shows the reversible capacity plotted as a function of R. The reversible capacity for Li insertion increases as R decreases. This result is consistent with the result reported in reference 12,... [Pg.383]

Fig. 32. Reversible capacity of microporous carbon prepared from phenolic resins heated between 940 to 1 I00°C plotted as a function of the X-ray ratio R. R is a parameter which is empirically correlated to the fraction of single-layer graphene sheets in the samples. Fig. 32. Reversible capacity of microporous carbon prepared from phenolic resins heated between 940 to 1 I00°C plotted as a function of the X-ray ratio R. R is a parameter which is empirically correlated to the fraction of single-layer graphene sheets in the samples.
Tao Zheng, W. Xing and J.R. Dahn, Carbons Prepared from Coals for Anodes of Liihium-lon Cells, Carbon, 34(12), pp. 1501-1507(1996). [Pg.385]

A. Palladium chloride on carbon. Prepare a solution of 4-2 g. of anhj drous palladium chloride (1) in 10 ml. of concentrated hydrochloric acid and 26 ml. of water by heating on a boiling water bath for 2 hours or imtil solution is complete. Add 70 ml. of water and pour all the resulting solution over 46 g. of nitric acid - washed activated carbon (2) contained in an evaporating dish or Pyrex crystallising dish. Mix the palladium chloride solution thoroughly with the carbon, and dry the mixture first on a water bath and then in an oven at 100° stir occasionally. Powder the mass (49 g.) and store in a tightly-stoppered bottle. [Pg.950]

The second class of materials, which we will consider herein are carbons with a highly ordered porosity prepared by a template technique [15-18]. The pores are characterized by a well-defined size determined by the wall thickness of the silica substrate used as substrate for carbon infiltration. They can be also interconnected, that is very useful for the charge diffusion in the electrodes. Figure 1 presents the general principle of the carbon preparation by a template technique, where the silica matrix can be, for example, MCM-48 or SBA-15. [Pg.30]

The total surface area of the template carbons prepared by sucrose impregnation is significantly higher than the surface area of the corresponding silica template (Table 2), that confirms the formation of micropores during the carbonization. Just an opposite tendency is observed... [Pg.36]

Kierzek K., Frackowiak E., Lota G., Gryglewicz G., Machnikowski J. Electrochemical capacitors based on highly porous carbons prepared by KOH activation Electrochim Acta 2004 49 515-23. [Pg.43]

Zheng, L., Zhong Q., and Dahn J.R. High-Capacity Carbons Prepared from Phenolic Resin for Anodes of Lithium-Ion Batteries. J. Electrochem. Soc., 142, 211-214 (1995). [Pg.246]

Incorporation of nitrogen into the carbons prepared via chemical vapour deposition (CVD) or into the carbon nanotubes yields highly graphitised materials with excellent structure ordering. For example, ordered mesoporous carbons containing 7.0-8.8 wt,% N have been obtained by the CVD method, using the SBA-12, SBA-15, MCM-41, MCM-48, and HMS materials as matrices and acetonitrile as carbon precursor [1],... [Pg.193]


See other pages where Carbonates, preparation is mentioned: [Pg.950]    [Pg.232]    [Pg.235]    [Pg.286]    [Pg.2227]    [Pg.283]    [Pg.344]    [Pg.345]    [Pg.376]    [Pg.1538]    [Pg.402]    [Pg.403]    [Pg.577]    [Pg.392]    [Pg.337]    [Pg.324]    [Pg.430]    [Pg.314]    [Pg.29]    [Pg.287]    [Pg.195]    [Pg.304]    [Pg.365]    [Pg.366]    [Pg.397]   
See also in sourсe #XX -- [ Pg.379 , Pg.383 ]




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A Solid State Strategy for the Preparation of Carbon-rich Polymers

Activated carbon fibers preparation

Activated carbon preparation

Activated carbons preparation process

Allyl carbonates conjugated diene preparation

Ammonium carbonate, solution preparation

Biotransformations in the Preparation of Compounds Labeled with Carbon and Hydrogen Isotopes

Calcium carbonate carbon composite preparation

Calcium carbonate, preparation

Carbon aerogels preparation

Carbon black preparation

Carbon catalyst dispersion, preparation

Carbon ceramic electrodes preparation

Carbon dioxide carboxylic acids prepared with

Carbon dioxide in industrial preparation of urea

Carbon dioxide laboratory preparation

Carbon fiber composites specimen preparation method

Carbon fiber reinforced polymer surface preparation

Carbon isotopes preparation

Carbon magnesium organometallics preparation

Carbon molecular sieve precursor preparation

Carbon molecular sieves catalyst preparation

Carbon monoxide oxidation, platinum supported catalyst preparation

Carbon monoxide preparation

Carbon nanotube preparation methods

Carbon nanotubes -based electrochemical electrode preparation

Carbon nanotubes -based electrochemical preparation

Carbon nanotubes /polymer composites preparation

Carbon nanotubes film preparation

Carbon nanotubes preparation

Carbon preparation

Carbon preparation

Carbon preparations, special

Carbon target preparation

Carbon, molar balances in heatup path preparation

Carbon-13 labelled acetylenes preparation

Carbon-ceramic electrodes preparing

Carbon-nitrogen ratios sample preparation

Carbon-supported electrocatalysts preparation

Cellulose carbonates, preparation

Comparison of silicon nitrides with carbon additions prepared by hot isostatic pressing and pressureless sintering

Dimethyl carbonate preparation from carbon dioxide

Diphenyl carbonate, preparation

Fluoro carbon complexes preparation

Fullerene/carbon nanotube preparation

Glassy carbon electrodes preparation

Graphene-carbon nanotube hybrid material preparation

Graphite, preparation from carbon

Guanidine carbonate, preparation

Hydrogen-carbon ratios sample preparation

In situ prepared activated carbons

Lithium bromide carbonate, preparation

Lithium carbonate, solution preparation

Magnesium methyl carbonate preparation

Membrane preparation carbon membranes

Metal—carbon bonding preparation

Methylmagnesium carbonate preparation

Nickel-activated carbon catalysts preparation

Palladium 10% - calcium carbonate catalyst, preparation

Phenylpyridines preparation from carbon

Phosphorus-carbon bonds, preparation

Physicochemical Properties of Active Carbons Used for Electrode Preparation

Platinum supported catalysts, carbon monoxide catalyst preparation

Polymer-based Carbon Nanotube Composites Preparation and Applications

Polysaccharides carbonates, preparation

Powdered activated carbons preparation

Preparation carbon electrode surfaces

Preparation carbon-supported

Preparation cyclic carbonates from epoxides

Preparation diamond-like carbon films

Preparation of Activated Carbon

Preparation of Carbon Aerogels

Preparation of Carbon Dioxide

Preparation of Carbon Fiber Reinforced Glasses

Preparation of Carbon Membranes

Preparation of Carbon Molecular Sieves (CMS or MSC)

Preparation of Carbon Nanotube Paste Electrodes Using Different Binders

Preparation of Carbon Onions by Ion Bombardment

Preparation of Carbon-Phosphorus Triple Bonds

Preparation of Carbon-Supported Catalysts

Preparation of Carbon-Supported Electrocatalysts

Preparation of Carbon-Supported Metal Catalysts

Preparation of Heterocumulenes from Carbonic Acid (Derivatives)

Preparation of Nitrogen-Containing Carbons

Preparation of Sodium Carbonate

Preparation of carbon nanotube electrodes and their electrochemical characteristics

Preparation of porous carbon

Preparation of water free from carbonic acid

Preparation of “Ultrafine” white carbon

Preparations with Carbon Monoxide

Preparative supercritical carbon dioxide

Sodium carbonate in preparation

Sodium carbonate in preparation acid chloride

Sodium carbonate, solution preparation

Sodium carbonate, solution preparation 0.5 molar

Sodium hydrogen carbonate preparation

Sodium hydrogen carbonate solution preparation

Strategies for the Preparation of Carbon Nanotube-Based Electrodes

Sucrose carbonates, preparation

Sucrose, carbons prepared from

The Preparation of Carbonates

Transition-metal-carbon bond, preparation

Vinylene carbonate preparation

With carbon-phosphorus bond, preparation

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