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Dissertations / Theses on the topic 'Zeolites characterization'

Author: Grafiati

Published: 11 January 2025

Last updated: 31 July 2025

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1

Simancas, Coloma Jorge. "Synthesis and Characterization of Zeolitic Materials Using Phosphorous Organic Structure Directing Agents." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/171267.

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[ES] Las zeolitas son materiales cristalinos microporosos con canales y tamaños de poro de dimensiones moleculares. La estructura y composición de las zeolitas les confiere interesantes propiedades que permiten su aplicación en una amplia gama de aplicaciones industriales como adsorción, separación o catálisis. La síntesis de zeolitas es la etapa más importante para el control de la estructura y composición de las zeolitas y, por tanto, crítica para la optimización de sus propiedades. Esta tesis se ha centrado en la síntesis de zeolitas utilizando compuestos que contienen fósforo (cationes fo

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2

Kovo, Abdulsalami Sanni. "Development of zeolites and zeolite membranes from Ahoko Nigerian kaolin." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/development-of-zeolites-and-zeolite-membranes-from-ahoko-nigerian-kaolin(3496e1fa-ece8-4781-be3f-a27a103f4c4a).html.

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Zeolites and zeolite membranes are two important advanced chemical materials which are widely used in chemical processes. The manufacture of these materials usually involves the use of expensive chemicals. This study involves the use of Ahoko Nigerian kaolin (ANK) as precursor material for the development of zeolites and zeolite membranes. The synthesis of zeolite A, Y and ZSM-5 was successfully obtained following a sequence, collection of the raw clay from Nigeria, metakaolinization, dealumination and actual hydrothermal synthesis of the zeolites. Raw ANK was refined using sedimentation techn

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3

Boruntea, Cristian-Renato. "Design, synthesis and characterization of small-pore zeolites for industrial environmental applications." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/141094.

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[ES] El Proyecto de investigación aquí descrito se estructura en dos partes. La primera parte se centra en la investigación fundamental con el objetivo de crear un protocolo para la síntesis de zeolitas. La segunda parte se refiere al diseño, síntesis y caracterización de nuevas zeolitas, particularmente utiles para aplicaciones DeNOx,, pero también podría ser útil para aplicaciones MTO. La investigación fundamental sugiere un Nuevo modelo de preparación de zeolitas utilizando otras zeolitas como simiente. Este proceso se llama transformación zeolita-zeolita o también conversión interzeolita.

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4

Bhat, R. N. "Synthesis and characterization of large pore zeolites." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1991. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2993.

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5

Turbeville, Wayne. "Characterization and reactivity of photochemical systems in zeolites /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487759436326079.

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6

Petushkov, Anton. "Synthesis and characterization of nanocrystalline and mesoporous zeolites." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/1057.

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Mesoporous aggregates of nanocrystalline zeolites with MFI and BEA frameworks have been synthesized using a one-pot and single structure directing agent method. The effect of different reaction conditions, such as temperature, time, pH and water content, on the particle size, surface area and mesopore volume has been studied. Nanocrystalline and mesoporous ZSM-5, β and Y zeolites were modified with different transition metals and the resulting single- and double metal containing catalyst materials were characterized. Nanocrystalline Silicalite-1 zeolite samples with varying particle size were

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7

Naydenov, Valeri. "Structured molecular sieves : synthesis, modification and characterization /." Luleå, 2003. http://epubl.luth.se/1402-1544/2003/39.

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8

Bessa, Raquel de Andrade. "Synthesis and characterization of composite magnetic zeolites using kaolin for softening water." Universidade Federal do CearÃ, 2016. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17007.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>The present work deals about the synthesis and characterization of magnetic zeolites obtained by hydrothermal route using kaolin from Brazilian Northeast as silicon and aluminum source. By means of the X-ray diffraction technique it was possible to identify zeolite LTA and zeolite P1 as major crystalline phases for each synthesis, with low intensity peaks referent to unreacted quartz present in the kaolin used, which is in accordance to the. FTIR spectra; the nanoparticles were identified as magnetite, with low intensity peaks refe

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9

Rossin, Joseph A. "Synthesis, characterization and reactivity of transition metal containing zeolites." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/76271.

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Transition metal containing zeolites (zeolite A and ZSM-5) were prepared by addition of various transition metal containing substrates to zeolite synthesis gels. Crystal growth data were recorded in order to determine the influence of the transition metal species on the rate of crystal growth. X-ray diffraction, oxygen adsorption, FTIR and SEM were utilized to evaluate crystal purity. X-ray photoelectron spectroscopy (XPS), chemical analysis and electron microprobe analysis were performed in order to ascertain the position (intrazeolitic versus surface) and homogeneity of the transition metal.

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10

Ait, Blal Abdelhafid. "Characterization of diffusion in hierarchical zeolites by infrared spectroscopy." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC233.

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Ce travail visait à développer et à évaluer une nouvelle méthode d'investigation du transport de matière dans les catalyseurs à base de zéolithes. Elle consiste en la combinaison de l'analyse gravimétrique et de la spectroscopie infrarouge. La première permet d'évaluer la diffusion de la phase gazeuse vers toute la porosité, tandis que la spectroscopie IR permet d'évaluer sélectivement la diffusion vers les sites actifs des zéolithes situés dans les micropores, en suivant l'évolution de leur taux couverture par la sonde moléculaire. Une méthode originale de traitement des données, basée sur l'

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11

Reddy, S. N. K. "Synthesis, characterization and catalytic properties of modified beta zeolites." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1992. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2940.

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12

Rao, G. N. "Synthesis, characterization and catalytic properties of eu-1 zeolites." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1990. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/3003.

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13

Rao, G. N. "Synthesis, characterization and catalytic properties of Eu - 1 zeolites." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1990. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/6099.

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14

Nair, Vinayan. "Characterization of ferrisilicate molecular sieves." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/32765.

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15

Martins, João Pedro Lourenço. "Characterization by model reactions of modified EUO and MWW zeolites." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT2282/document.

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L'EU-1 et la MCM-22 sont deux zéolithes à taille de pores intermédiaire, utilisées respectivement pour l'isomérisation de la coupe C8 aromatique et l'alkylation du benzène par des oléfines légères. Leurs propriétés catalytiques originales sont dues à une contribution très importante des sites acides localisés sur leur surface externe. Au cours de ce travail, différentes approches ont été envisagées pour augmenter la quantité ou la proportion de ces sites aux dépends des sites internes. Tout d'abord, une série de zéolithes H-EU-1 partiellement échangées par du sodium a été préparée et caractéri

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16

Triplett, Jason. "Identification and Characterization of Fibrous Zeolites in Western North Dakota." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26624.

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The fibrous zeolite mineral erionite is a concern due to its potential for causing lung disease in humans. Studies have shown that exposure to altered volcanic bedrock containing erionite may be the explanation for a high lung disease rate throughout regions of the world (Metintas et al., 1999). Erionite was reported by Forsman (1986) as occurring in tuffaceous rock units of the Arikaree Formation in the Killdeer Mountains of western North Dakota. Rock and soil samples were collected where zeolite minerals are known or suspected to be present including North and South Killdeer Mountains in Dun

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17

Abdulla, R. A. "Studies on some large pore zeolites: synthesis, modification and characterization." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1998. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2965.

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18

Ye, Jianting. "Fabrication and optical characterization of nanostructures formed inside AlPO4-5 zeolite single crystals /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?PHYS%202006%20YE.

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19

Kini, Gautam Chandrakanth. "Characterization of synthetic zeolites optimized for heavy metal uptake from wastewater." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0015769.

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20

LETICHEVSKY, SONIA. "SYNTHESIS AND CHARACTERIZATION OF NANOCRYSTALLINE MORDENITE, FERRIERITE AND ZSM-5 ZEOLITES." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=12172@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>Neste trabalho, as zeólitas mordenita, ferrierita e ZSM-5 foram preparadas através de síntese hidrotérmica com a variação dos parâmetros fontes de alumínio e silício, quantidade de água, utilização de sementes, temperatura e tempo de cristalização com a finalidade de obter zeólitas nanocristalinas. As amostras preparadas foram caracterizadas por espectrofotometria de absorção atômica, difração de raios-X com

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21

Connaway, Melissa Clare. "Design and characterization of zeolite supported cobalt carbonyl catalysts." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/82894.

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Transition metal compounds such as Co₂(CO)₈ have often been used to catalyze various organic reactions. Severe difficulties may be encountered when attempts are made to recover and separate the soluble catalysts. A heterogeneous system consisting of Co₂(CO)₈ impregnated on zeolites with faujasitic structure has been designed and investigated using a variety of techniques. In situ FTIR spectroscopy and carbon monoxide evolution were used to identify the major products generated, namely Co₄(CO)₁₂ and Co(CO)<sub>4<sup>-</sup></sub>. Disproportionation may be induced thus forming Co(CO)<sub>4<sup>

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22

Jayaraman, Arjun. "Electrical impedance characterization of microporous films at elevated temperatures with interdigitated design." Diss., Connect to online resource - MSU authorized users, 2008.

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Thesis (M.S.)--Michigan State University. Dept. of Electrical and Computer Engineering, 2008.<br>Title from PDF t.p. (viewed on Aug. 7, 2009) Includes bibliographical references (p. 58-59). Also issued in print.

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23

Seelan, S. "Synthesis, characterization and catalytic properties of metal phthalocyanines encapsulated in large pore zeolites." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2280.

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24

Kinage, A. K. "Synthesis and characterization of gallosilicate (MFI) and galloaluminosilicate (MFI) zeolites for propane aromatization." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1996. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2977.

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25

Afridi, Pirzada. "Syntheses & characterization of nanoZSM-5 & MOR zeolites, characterization of ZNS in the pore network of MOR." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:8117cf4f-0a27-4eff-a328-8558573fc3b8.

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This study was carried out on the synthesis of mordenite zeolite and ZSM-5 zeolite. In Chapter 3 reports the growth of ZnS nanoclusters in the pore channels of mordenite zeolite. ZnS as an important wide-band-gap (3.6 eV) semiconductor nanoclusters and have various technological applications such as photocatalysis, nonlinear optics, sensors, solar cells, injection lasers, flat panel displays, ultraviolet light emitting diodes (LED). Zeolites have several different applications in industries, such as in catalysis, ion exchange adsorption and gas separation. Zeolites are mostly used as a catalys

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26

Parulkar, Aamena. "Developing Synthesis and Characterization Methods for Enhancing Material Performance." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1542739064703435.

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27

He, Xumin. "Synthesis, characterization of poly(amidesulfonamide)s (PASAs) and their applications in reverse osmosis and pervaporation processes." HKBU Institutional Repository, 1998. http://repository.hkbu.edu.hk/etd_ra/136.

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28

Inge, Andrew Kentaro. "Open-Framework Germanates : Synthesis, Structure, and Characterization." Doctoral thesis, Stockholms universitet, Institutionen för material- och miljökemi (MMK), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75732.

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Novel open-framework germanates and open low-dimensional structures were synthesized and characterized. Their crystal structures were solved by single crystal X-ray diffraction or X-ray powder diffraction combined with other techniques. Although related open-framework materials, such as zeolites, are of interest for the ability to selectively accommodate guest species in their rings, pores and channels, germanates are primarily of interest for their unique structural properties. Compared to aluminosilicate-based zeolites, germanium oxides readily form frameworks with extra-large rings and low

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29

Akar, Dilek Shahwan Talal. "Physicochemical characterization of the sorption behavior of Cs+ and Sr2+ Ions on natural kaolinite and cliptilolite minerals/." [s.l.]: [s.n.], 2005. http://library.iyte.edu.tr/tezler/master/kimya/T000489.pd.

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30

Stefan, Catalin. "Improvements of characterization of single and multisolute adsorption of methyl tert-butyl ether (MTBE) on zeolites /." Pirna : Forum für Abfallwirtschaft und Altlasten e.V, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016458725&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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31

Chaube, V. D. "Synthesis, characterization of zeolites and metal complex immobilized mesoporous alumina for acylation, alkylation and oxidation reactions." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2005. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2461.

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32

Azenha, Ivo Samuel Caniceiro. "Synthesis, characterization and modeling of zeolitic membranes for gas separation." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15272.

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Mestrado em Engenharia Química<br>The interest on inorganic membranes has been growing significantly due to their remarkable properties like mechanical, thermal and chemical stabilities, and the ability to perform selective separations based on the kinetic diameter and surface affinity, acting as molecular sieves. The main objectives of this work were: (i) the application of the Maxwell-Stefan (MS) formalism to gas permeation through zeolite-type membranes in order to explore its potential as purely predictive tool; (ii) the development of new MS thermodynamic factors for the Dubinin-Astakhov

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33

Shrestha, Saiju Mandira Devi [Verfasser]. "Synthesis and Characterization of Novel Spiro-Starburst-Structures as Blue Light Emitters and Zeolites / Mandira Devi Shrestha Saiju." Kassel : Universitätsbibliothek Kassel, 2009. http://d-nb.info/1000459187/34.

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34

ROBB, GARY MICHAEL. "ACIDITY CHARACTERIZATION OF ZEOLITES VIA COUPLED NH ₃ -STEPWISE TEMPERATURE PROGRAMMED DESORPTION AND FT-IR SPECTROSCOPY." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1021031631.

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35

GOPAL, SRIKANT. "SYNTHESIS, MODIFICATION, CHARACTERIZATION AND CATALYTIC STUDIES OF ZEOLITE BASED BIFUNCTIONAL CATALYSTS FOR HYDROISOMERIZATION REACTION." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1061218813.

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36

Huang, Shiliang. "Open-Framework Germanates and Nickel Germanates : Synthesis and Characterization." Doctoral thesis, Stockholms universitet, Institutionen för material- och miljökemi (MMK), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75495.

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Microporous materials have a wide range of important applications in separation, gas adsorption, ion-exchange and catalysis. Open-framework germanates are a family of microporous compounds and are of particular interest. This thesis focuses on the synthesis and characterization of new open-framework germanates as well as introducing the transition-metal nickel into germanate structures. One new microporous germanosilicate, SU-78 and four new open-framework germanates, SU-74, SU-75, SU-69 and SU-76 have been obtained by using organic molecules as structure directing agents (SDAs). The incorpora

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37

Tian, Yuyang. "Synthesis and characterization of crystalline microporous materials : investigation of new synthetic routes." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6371.

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Conventionally, crystalline microporous materials such as zeolites and metal-organic frameworks (MOFs) are synthesized through the hydrothermal route or the trial-and-error approach. Other synthetic strategies may lead to the synthesis of microporous materials with new architectures or interesting properties. The general aim of this thesis is to investigate some new synthetic routes towards crystalline microporous materials. A top-down and post-synthesis method is reported in Chapter 4. Some zeolites are built up by layers and double-4-ring pillars. Germanium is preferentially located in the d

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38

PARODI, Ilaria. "Structural characterization of zeolitic catalysts in non-ambient conditions by X-ray and neutron diffraction." Doctoral thesis, Università degli studi di Ferrara, 2009. http://hdl.handle.net/11392/2388659.

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This PhD thesis strives to give an exhaustive characterization of the behaviour of zeolites in nonambient conditions. Zeolites presents a lot of peculiar characteristics, such as shape selectivity, high thermal stability, but the most important is their catalytic activity, which have been evaluated for many petrochemical reactions, such as gas-oil cracking and hydrocracking, aromatic alkylation and isomerisation ecc. The catalytic activity of zeolites is due to their particular structure. These minerals, in fact, are characterized by large pores and channels. Only molecules with determin

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39

Selvaraj, K. "Preparation of aluminosilicate based ceramics, β-spodumene and cordierite using zeolites as precursors and their characterization for microelectronic and other applications". Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5949.

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40

Chin, Khin Kein. "Photophysical studies of fullerene derivatives and organic molecular nanocrystals ; and Singlet oxygen in microheterogeneous media: direct characterization in zeolites, proteins, and immunoglobulins." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1779690191&sid=7&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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41

ALCANTARA, RAQUEL R. "Síntese, caracterização, de nanomaterial zeolítico de cinzas de carvão organomodificado e aplicação como adsorvente na remediação de água contaminada por Rodamina B e Azul Direto 71." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27960.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-10-27T12:15:25Z No. of bitstreams: 0<br>Made available in DSpace on 2017-10-27T12:15:25Z (GMT). No. of bitstreams: 0<br>A síntese de zeólitas a partir de cinzas leves e pesadas de carvão mineral foi realizada por tratamento hidrotérmico alcalino, as quais foram nomeadas ZCL e ZCP, respectivamente. As zeólitas organomodificadas ZML e ZMP foram obtidas a partir da modificação superficial de ZCL e ZCP, respectivamente, utilizando o surfactante catiônico brometo de hexadeciltrimetilamônio. A partir das soluções remanescentes

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Al, Atrach Jaouad. "Advanced design οf zeοlitic materials fοr the adsοrptiοn/separatiοn οf CΟ2, Ν2, and CΗ4 mοlecules". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMC234.

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Ce travail de thèse porte sur l’optimisation des matériaux zéolithiques à petits pores dans le butd'améliorer leur capacité d'adsorption du CO2 et leur efficacité en séparation des gaz. Dans cecontexte, cette étude se concentre sur l'amélioration des performances des zéolithes à traversl'échange ionique, le contrôle de la taille des cristaux et la synthèse de nouveaux adsorbants. Deszéolithes de type Gismondine (GIS) échangées avec des cations Mg2+ ont été synthétiséesdémontrant une meilleure sélectivités pour CO2/N2 et CO2/CH4 grâce à un échange cationiquespartiel avec Mg2+, ce qui influencé

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43

Brigden, Clive. "A study of the synthesis chemistry, structure formation and characterization of all-silica, aluminium-, scandium- and copper-containing MFI and BEA type zeolites synthesized in fluoride and caustic media." Thesis, University of Wolverhampton, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542315.

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44

Cardoso, Simão Pedro Pereira. "Synthesis and characterization of small pore membranes and their application to the separation of hydrogen containing mixtures." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/21173.

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Doutoramento em Engenharia Química<br>Among various methods for the separation of hydrogen containing mixtures, membrane technology has received special attention due to its simplicity of operation, moderate energy consumption, cost effectiveness, it is environmentally friendly and can be easily coupled with other separation methods. In particular, inorganic membranes exhibit relevant advantages such as high thermal, chemical and mechanical stabilities, minor plasticization and better control of pore size distribution. They can be divided into five main families: metallic and ceramic pr

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Tamer, Nadir Hakan. "Synthesis And Characterization Of Zeolite Beta." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607433/index.pdf.

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Zeolite beta has been synthesized using hydrothermal methods. In order to synthesize zeolite beta an aqueous gel having a molar batch composition of 2.2 Na2O&amp<br>#8729<br>Al2O3&amp<br>#8729<br>x SiO2&amp<br>#8729<br>4.6 (TEA)2O&amp<br>#8729<br>444 H2O was utilized. The synthesis parameters were SiO2/Al2O3 ratio (20 &amp<br>#8804<br>x &amp<br>#8804<br>50) and crystallization time (6 &amp<br>#8804<br>t &amp<br>#8804<br>16 days). Pure zeolite beta was crystallized from the experiments which were performed with the batch composition having SiO2/Al2O3 of 20 and 30 in 6 to 16 days period. For

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46

Awate, S. V. "Synthesis & characterization of zeolite catalysts." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1993. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/6152.

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47

Shaikh, A. A. "Synthesis and characterization of mordenite zeolite." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1994. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/3079.

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48

Soydas, Belma. "Characterization Of Zeolite Membranes By Gas Permeation." Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610603/index.pdf.

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Zeolite membranes are attractive materials to separate gas and liquid mixtures. MFI is a widely studied zeolite type due to its ease of preparation and comparable pore size with the molecular size of many substances. In this study MFI type membranes were synthesized over porous &amp<br>#945<br>-Al2O3 supports and characterized with XRD, SEM and gas permeation measurements. In the first part of this study the effect of soda concentration of the synthesis solution on the membrane morphology and crystal orientation was investigated. The synthesis was carried out from solutions with a molar compos

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Yu, Miao. "Separation mechanisms and microstructure characterization of zeolite membranes." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3256404.

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50

Gualtieri, Magdalena. "Synthesis and characterization of zeolite films and membranes." Doctoral thesis, Luleå University of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25694.

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Abstract:

In this work, a seeding technique was used to synthesize films and membranes of FAU, LTA and MFI type zeolites. In the first part, hydrothermal growth was performed without organic template molecules, which resulted in template-free zeolite films and membranes. The samples were characterized by Scanning Electron Microscopy, X-ray Powder Diffraction and permeation measurements with gaseous probe molecules. Thin films of FAU-type zeolite were prepared on polished single crystals. The thickness and morphology of the films could be controlled by varying the synthesis conditions. Preparation of LTA

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