Advances in Nanoporous Materials by Stefan Ernst (Eds.) PDF

By Stefan Ernst (Eds.)

ISBN-10: 0444531793

ISBN-13: 9780444531797

Advances in Nanoporous fabrics is a set of complete reports of lasting price within the box of nanoporous fabrics. The contributions conceal all facets of nanoporous fabrics, together with their practise and constitution, their post-synthetic amendment, their characterization and their use in catalysis, adsorption/separation and all different fields of power program, e.g. membranes, host/guest chemistry, environmental safeguard, electrochemistry, sensors, optical units, and so forth. The time period Nanoporous fabrics is known to contain all type of porous solids which own pores within the variety from ca. 0.2 nm as much as ca. 50 nm, without reference to their chemical composition, their beginning (natural or artificial) and their amorphous or crystalline nature. common examples are zeolites and zeolite-like fabrics (e.g., crystalline microporous aluminophosphates and their derivatives), mesoporous oxides like silica, silica-alumina etc., steel natural frameworks, pillared clays, porous carbons and similar fabrics. The contributions review the literature in a undeniable zone completely and seriously and supply a cutting-edge review to the reader. cutting-edge studies maintain assurance present wide scope offers an entire topical review Contributions from well known specialists lend authority to the cloth

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By Stefan Ernst (Eds.)

ISBN-10: 0444531793

ISBN-13: 9780444531797

Advances in Nanoporous fabrics is a set of complete reports of lasting price within the box of nanoporous fabrics. The contributions conceal all facets of nanoporous fabrics, together with their practise and constitution, their post-synthetic amendment, their characterization and their use in catalysis, adsorption/separation and all different fields of power program, e.g. membranes, host/guest chemistry, environmental safeguard, electrochemistry, sensors, optical units, and so forth. The time period Nanoporous fabrics is known to contain all type of porous solids which own pores within the variety from ca. 0.2 nm as much as ca. 50 nm, without reference to their chemical composition, their beginning (natural or artificial) and their amorphous or crystalline nature. common examples are zeolites and zeolite-like fabrics (e.g., crystalline microporous aluminophosphates and their derivatives), mesoporous oxides like silica, silica-alumina etc., steel natural frameworks, pillared clays, porous carbons and similar fabrics. The contributions review the literature in a undeniable zone completely and seriously and supply a cutting-edge review to the reader. cutting-edge studies maintain assurance present wide scope offers an entire topical review Contributions from well known specialists lend authority to the cloth

Show description

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A recent example of fine chemical reaction carried out in a membrane microreactor is the Knoevenagel condensation reaction where the selective removal of the by-product water during the reaction led to a 25% improvement in the conversion [232]. The reaction between benzaldehyde and ethyl cyanoacetate to produce ethyl-2-cyano-3-phenylacrylate was catalyzed by a CsNaX zeolite catalyst deposited on the micro channel and the water was selectively pervaporated across a LTA membrane (Fig. 27a) [233]. All the water produced by the reaction was completely removed and the membrane was operating below its capacity [234].

Experimental results were described, for example, in Refs. [220–223] silicalite-1 membranes were studied in ibutane dehydrogenation. 50 nm, respectively) since the interplay of mixture adsorption and mixture diffusion results in a H2 selectivity at high temperatures (Fig. 19). In the conventional fixed-bed experiment, the thermodynamic equilibrium conversion was obtained (Fig. 25). As hydrogen was removed from the shell side of the membrane reactor through the sweep gas, the i-butane conversion increased by approximately 15% [154].

Azobenzene was obtained as by-product, and its formation was attributed to homogeneous reaction of nitrosobenzene with aniline. Increasing temperature was beneficial for both yield and selectivity, but beyond 67 1C, microreactor operation was ineffective due to bubble formation and hydrogen peroxide decomposition [237,238] . Synthesis of advanced materials was also successfully carried out in zeolite membrane-enclosed microchannels [239]. The hollow silica nanospheres were successfully prepared within the zeolite-enclosed microchannels by a ship-in-a-bottle approach.

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Advances in Nanoporous Materials by Stefan Ernst (Eds.)


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