Results 11 to 20 of about 96,844 (275)

Zeolite-filled silicone rubber membranes : Part 1. Membrane preparation and pervaporation results [PDF]

open access: yes, 1987
Amongst the alternative fuels obtained from renewable resources alcohol from fermentation may become one of the most important. The combination of fermentation with pervaporation in a membrane bioreactor offers the advantage of continuous processing.
Bargeman, D.   +3 more
core   +12 more sources

Formation and characterization of inorganic membranes from zeolite-silica microcomposites [PDF]

open access: yes, 1988
Small crystals of zeolites (500-1000 nm) with two- and three-dimensional channel systems (faujasite and ZSM-5 structures) were embedded in amorphous thin films derived from TEOS hydrolyzed in alcoholic solution.
Barrer   +6 more
core   +1 more source

Agglomeration mechanism during the preparation of nickel(0) and iron(0) zeolites [PDF]

open access: yes, 1984
Magnetization measurements have been used to study the reduction process of Ni - zeolites and the thermal decomposition of iron pentacarbonyl adsorbed on NaY zeolites .
Bein, Thomas   +4 more
core   +1 more source

Species sensitivity of zeolite minerals for uptake of mercury solutes [PDF]

open access: yes, 2006
The uptake of inorganic Hg2+ and organometallic CH3Hg+ from aqueous solutions by 11 different natural zeolites has been investigated using a batch distribution coefficient (Kd) method and supported by a preliminary voltammetric study.
A. Chimedtsogzol   +13 more
core   +2 more sources

Silicon aluminium ordering in the framework of zeolites [PDF]

open access: yesBulletin of the Geological Society of Finland, 1985
The (Si, Al) ordering scheme in the framework of zeolites is reviewed, and four classes are recognized: 1 ‒ zeolites with Si:Al = 1 : 1 and a simple order given by the alternation of Si and Al; 2 ‒ zeolites with Si> Al and an ordered distribution; 3 ...
G. Gottardi, A. Alberti
doaj   +1 more source

Understanding brønsted-acid catalyzed monomolecular reactions of Alkanes in Zeolite Pores by combining insights from experiment and theory [PDF]

open access: yes, 2018
Acidic zeolites are effective catalysts for the cracking of large hydrocarbon molecules into lower molecular weight products required for transportation fuels.
Bell, Alexis T.   +5 more
core   +2 more sources

Benzene Alkylation by Ethanol over Catalysts on the Base of Modified Natural Zeolites

open access: yesEurasian Chemico-Technological Journal, 2012
Alkylation of aromatic compounds with ethanol was researched on modified natural zeolites of Kazakhstan deposits. These natural zeolites were identified as Clinoptilolite-Heulandite type. Zeolites were treated by hydrochloric acid, which leads to removal
A. T. Massenova   +4 more
doaj   +1 more source

Conducting polymer wires in mesopore hosts [PDF]

open access: yes, 1994
Nanometer-size conducting structures are of great interest in view of fundamental issues and potential applications. We explore the inclusion chemistry of conjugated polymers and graphite-like materials as a means to create such structures.
Beck   +19 more
core   +1 more source

Cryogenic Hydrogen Adsorption onto H-, Li-, Na-Exchanged Zeolites with Various Si/Al Ratios

open access: yesAdsorption Science & Technology, 2014
We investigated the hydrogen-adsorption properties of four zeolites (FAU-, MFI-, *BEA- and MOR-type zeolites) with various Si/Al ratios and charge cations (H + Li + or Na + ), focusing particularly on the measurements of isosteric heat of adsorption (Q ...
Masaru Kubo   +3 more
doaj   +1 more source

Atomic-scale imaging of electron sensitive zeolites with aberration corrected transmission electron microscopy

open access: yesOpen Ceramics, 2023
The spatial resolution of transmission electron microscopes (TEMs) and scanning transmission electron microscopes (STEMs) has been drastically improved by introducing aberration correction.
Kaname Yoshida, Atsushi Nakahira
doaj   +1 more source

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