Results 21 to 30 of about 73,361 (307)

Nanofiller-tuned microporous polymer molecular sieves for energy and environmental processes [PDF]

open access: yes, 2015
10.1039/c5ta09060aJournal of Materials Chemistry A41270 ...
Cao, S   +6 more
core   +1 more source

Modificação de zeólitas para uso em catálise Modifying zeolites for use in catalysis

open access: yesQuímica Nova, 2001
The use of zeolites and other molecular sieves as catalysts is discussed at an introductory level. The text includes a brief historic background on the use of zeolites in catalysis, and a discussion of some chemical and physical properties of silicalite,
Fernando J. Luna, Ulf Schuchardt
doaj   +1 more source

Adsorbent filled membranes for gas separation. Part 1. Improvement of the gas separation properties of polymeric membranes by incorporation of microporous adsorbents [PDF]

open access: yes, 1992
The effect of the introduction of specific adsorbents on the gas separation properties of polymeric membranes has been studied. For this purpose both carbon molecular sieves and zeolites are considered.
Desgrandchamps, G.   +6 more
core   +4 more sources

Structural and Textural Properties of Al/Cu- and Al/Zn-Pillared Clays for Ethanol Conversion

open access: yesCrystals
A montmorillonite sample was pillared using mixed solutions of Al/Cu and Al/Zn as the pillaring agent. Al/Cu- and Al/Zn-pillared clays were applied in an ethanol conversion reaction.
Lamara M. dos Santos   +4 more
doaj   +1 more source

Surface chemistry of heterobimetallic Ge-M (M = Mo, W) complexes in zeolite Y. [PDF]

open access: yes, 1991
The intrazeolite chemistry of the two germylene complexes Cl2CTHF)GeM(CO)5 (M = Mo, W) was studied with x-ray absorption spectroscopy (Ge, Mo, W edge EXAFS) and in-situ FTIR/TPD-MS techniques.
Bein, Thomas   +2 more
core   +1 more source

ECO-FRIENDLY ENZYMATIC SYNTHESIS OF ANISYL PROPIONATE MEDIATED BY LIPASE B FROM CANDIDA ANTARCTICA

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2021
In this paper we report a biocatalytic approach for the efficient synthesis of anisyl propionate by direct esterification of anisyl alcohol with propionic acid mediated by commercially available Novozym 435, in presence of molecular sieves which serves ...
Diana Maria SCROB   +2 more
doaj   +1 more source

Perfluoropolymer/Molecular Sieve Mixed-Matrix Membranes

open access: yesMembranes, 2019
Despite the outstanding chemical, thermal and transport properties of amorphous and glassy perfluorinated polymers, only few works exist on the preparation and transport properties of perfluoropolymer/molecular sieves mixed-matrix membranes (MMMs ...
Gianni Golemme, Anna Santaniello
doaj   +1 more source

Graphene-like Membranes: From Impermeable to Selective Sieves

open access: yes, 2014
Recently, it was proposed that graphene membranes could act as impermeable atomic structures to standard gases. For some other applications, a higher level of porosity is needed, and the so-called Porous Graphene (PG) and Biphenylene Carbon (BPC ...
Brunetto, G., Galvao, D. S.
core   +1 more source

Vapor-phase transport synthesis of ZnAPO-34 molecular sieve [PDF]

open access: yes, 1999
ZnAPO-34 molecular sieve can be synthesized by the vapor-phase transport technique using triethylamine as a structure-directing ...
Gavalas, George R., Zhang, Lixiong
core   +1 more source

Synthesis of zeolite molecular sieve from coal gangue and its performance on CO2 capture

open access: yesMeitan xuebao
Coal gangue, a by-product of coal mining, is accumulating rapidly and As a by-product of coal mining, the amount of coal gangue is increasing in stock, which poses a serious threat to the environment.
Cui QUAN   +6 more
doaj   +1 more source

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