Results 11 to 20 of about 9,508 (161)

Encapsulation of polyaniline in zeolite Y and mordenite [PDF]

open access: yes, 1989
Synthetic strategies to encapsulate polyaniline in the crystalline channel system of faujasite (three-dimensional) and mordenite (one-dimensional) have been explored.
Bein, Thomas, Enzel, Patricia
core   +1 more source

Intrazeolite synthesis of polythiophene chains [PDF]

open access: yes, 1989
Adsorption of thiophene and 3-methylthiophene into the channel system of transition metal-containing zeolites Y and mordenite results in oxidative polymerization to give encapsulated chains of polythiophene and poly(3-methylthiophene)
Bein, Thomas, Enzel, Patricia
core   +1 more source

Diagenetic mordenite from Ponza, Italy

open access: yesEuropean Journal of Mineralogy, 1995
Diagenetically altered rhyolitic rocks consisting of major mordenite and minor cristobalite and smectite occur beneath a thick (about 90 m) smectite-rich layer in an abandoned quarry at Cala Fontana, in the northwestern part of the Ponza Island (Thyrrenian Sea, Gulf of Gaeta). The structure of the mordenite was refined by full-profile Rietveld analysis
PASSAGLIA, Elio   +3 more
openaire   +3 more sources

Characterization of natural Yemeni zeolites as powder sorbents for ammonium valorization from domestic waste water streams using high rate activated sludge processes [PDF]

open access: yes, 2018
BACKGROUND In this study three natural Yemeni zeolites (NZ1, NZ2 and NZ3) having major minerals such as clinoptilolite and mordenite, were evaluated as low cost sorbents for the removal and recovery of ammonium ions.
Alouani, Rabeh   +4 more
core   +2 more sources

An investigation of the nature and reactivity of the carbonaceous species deposited on mordenite by reaction with methanol [PDF]

open access: yes, 2011
An investigation of the nature of the carbonaceous species deposited upon mordenite by reaction with methanol has been undertaken. The nature of the species has been shown to be a strong function of both temperature and time on stream.
Apperley, D. C.   +6 more
core   +1 more source

Intrazeolite assembly and pyrolysis of polyacrylonitrile [PDF]

open access: yes, 1992
Radical polymerization of acrylonitrile within the pores of zeolites Y and mordenite produces intrazeolite polyacrylonitrile that can be pyrolysed to form conducting carbon ...
Bein, Thomas   +2 more
core   +1 more source

Characteristic and Catalytic for Mordenite and Zsm-5 Reaction in Produce Hydrocarbons [PDF]

open access: yes, 2013
Conversion of methanol to the use of the treated mordenite and ZSM-5 studied in this description. Mordenite catalyst activity which showed a decrease in activity without modified quickly. After hydrothermally dealuminated mordenite done and acidification
Zamhari, M. (Mustain)
core   +1 more source

A critical review of porous adsorbents for air separation: From fundamental insights to rational adsorbent design

open access: yesAIChE Journal, EarlyView.
Abstract Air separation via selective adsorption using porous adsorbents offers energy‐efficient alternatives to cryogenic distillation for producing high‐purity O2 and N2. Adsorbent efficacy depends on balancing selectivity, durability, and performance consistency across varying conditions. This comprehensive review critically discusses the design and
Tianqi Wang   +9 more
wiley   +1 more source

Co-Rh modified natural zeolites as new catalytic materials to oxidize propane and naphthalene from emission sources [PDF]

open access: yes, 2016
Natural zeolites as a raw material to prepare catalytic precursors for the oxidation reaction of linear and poly-aromatic hydrocarbons are reported in this work. The process consisted in the formation of mono- and bi-metallic species containing Co and Co-
Botto, Irma Lia   +4 more
core   +2 more sources

Nitrido Zeolites. A Novel and Promising Class of Compounds [PDF]

open access: yes, 1994
The synthetic approach to nitrido zeolites has been opened up by the synthesis and characterization of the P-N-sodalite class of compounds. A variety of compounds with a general formula M7_xH2 x[P1 2N24]X2-y with Μ = Zn2 + , Co2 + , Ni2 + etc. and X =
Schnick, Wolfgang, Weitkamp, Jens
core   +1 more source

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