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Resultados globales: 14 registros encontrados en 0.02 segundos.
Artículos, Encontrados 14 registros
Artículos Encontrados 14 registros  1 - 10siguiente  ir al registro:
1.
24 p, 2.2 MB Recent Advances in the Catalytic Conversion of Methane to Methanol : From the Challenges of Traditional Catalysts to the Use of Nanomaterials and Metal-Organic Frameworks / Vali, Seyed Alireza (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Abo Markeb, Ahmad (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Moral Vico, Javier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ; Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Methane and carbon dioxide are the main contributors to global warming, with the methane effect being 25 times more powerful than carbon dioxide. Although the sources of methane are diverse, it is a very volatile and explosive gas. [...]
2023 - 10.3390/nano13202754
Nanomaterials, Vol. 13, Num. 20 (October 2023) , art. 2754  
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2.
11 p, 2.0 MB Zeolites and coexisting authigenic minerals in Miocene tuffs of the Alaçati (Çeşme) area, Turkey / Kaçmaz, H. (Dokuz Eylul University. Department of Geological Engineering) ; Köktürk, U. (Dokuz Eylul University. Department of Mining Engineering)
The zeolites and coexisting minerals of the silicic vitric tuffs in the Alaçati (Çeşme) area, west of İzmir (Turkey), were studied. Mordenite is the most abundant zeolite in tuffs of the Alaçati area and usually coexists with clinoptilolite-heulandite, smectite and calcite. [...]
2006 - 10.1346/CCMN.2006.0540505
Clays and Clay Minerals, Vol. 54, Núm. 5 (2006) , p. 587-597  
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3.
14 p, 581.6 KB Isothermal measurement of heats of hydration in zeolites by simultaneous thermogravimetry and differential scanning calorimetry / Neuhoff, Philip S. (University of Florida. Department of Geological Sciences) ; Wang, Jie (University of Florida. Department of Geological Sciences)
A calorimetric method for determining isothermal partial and integral heats of hydration reactions (ΔH̄ ,, and ΔH̄,TP respectively) in zeolites and other mineral hydrates is presented. The method involves immersing a dehydrated sample in a humid gas stream under isothermal conditions within a thermal analysis device that records simultaneous differential scanning calorimetric (DSC) and thermogravimetric analysis (TGA) signals. [...]
2007 - 10.1346/CCMN.2007.0550302
Clays and Clay Minerals, Vol. 55, Núm. 3 (2007) , p. 239-252  
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4.
4 p, 652.2 KB Chemical upgrading of sedimentary Na-Chabazite from Bowie, Arizona / Kuznicki, Steven M. (University of Alberta. Department of Chemical and Materials Engineering) ; Lin, Christopher C. H. (University of Alberta. Department of Chemical and Materials Engineering) ; Bian, Junjie (University of Alberta. Department of Chemical and Materials Engineering) ; Ansón-Casaos, Alejandro (University of Alberta. Department of Chemical and Materials Engineering)
Natural zeolites may represent one of the greatest under-utilized resources of the mineral world. Even with their unique character and properties, issues of consistency, homogeneity and purity preclude them from many premium applications. [...]
2007 - 10.1346/CCMN.2007.0550301
Clays and Clay Minerals, Vol. 55, Núm. 3 (2007) , p. 235-238  
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5.
5 p, 673.7 KB The synthesis of a platy chabazite analog from delaminated metakaolin with the ability to surface template nanosilver particulates / Kuznicki, Steven M. (University of Alberta. Department of Chemical and Materials Engineering) ; Lin, Christopher C. H. (University of Alberta. Department of Chemical and Materials Engineering) ; Wu, Lan (University of Alberta. Department of Chemical and Materials Engineering) ; Yin, Haiyan (University of Alberta. Department of Chemical and Materials Engineering) ; Danaie, Mohsen (University of Alberta. Department of Chemical and Materials Engineering) ; Mitlin, David (University of Alberta. Department of Chemical and Materials Engineering)
Mineral chabazite has shown the unusual ability to surface template nanometal particles, especially Ag. A chabazite analog was synthesized from delaminated metakaolin. The chabazite formed retained the platy morphology of the base clay. [...]
2008 - 10.1346/CCMN.2008.0560606
Clays and Clay Minerals, Vol. 56, Núm. 6 (2008) , p. 655-659  
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6.
7 p, 3.5 MB Preparation and characterization of magnetic composites based on a natural zeolite / GutiéRrez, Marlen (Center for the Development of Nanoscience and Nanotechnology. CEDENNA) ; Escudey, Mauricio (Center for the Development of Nanoscience and Nanotechnology. CEDENNA) ; Escrig, Juan (Center for the Development of Nanoscience and Nanotechnology. CEDENNA) ; Denardin, Juliano C. (Center for the Development of Nanoscience and Nanotechnology. CEDENNA) ; Altbir, Dora (Center for the Development of Nanoscience and Nanotechnology. CEDENNA) ; Fabris, Jose D. (Universidade Federal de Minas Gerais. Departmento de Química) ; Cavalcante, Luis C. D. (Universidade Federal de Minas Gerais. Departmento de Química) ; García-GonzáLez, María Teresa (Consejo Superior de Investigaciones Científicas (Espanya). Instituto de Ciencias Agrarias)
A magnetic composite was prepared by wet-impregnating a powder of a natural zeolite with a magnetic Fe oxide-containing synthetic material. Both starting materials were first characterized with X-ray diffraction, scanning electron microscopy, Mössbauer spectroscopy, and by isoelectric-point using vibrating-sample magnetometry. [...]
2010 - 10.1346/CCMN.2010.0580501
Clays and Clay Minerals, Vol. 58, Núm. 5 (2010) , p. 589-595  
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7.
17 p, 2.0 MB Element distribution between coexisting authigenic mineral phases in argillic and zeolitic altered tephra, Olduvai Gorge, Tanzania / Mchenry, Lindsay. J. (University of Wisconsin-Milwaukee. Department of Geosciences)
The current study demonstrates how co-existing zeolite and clay minerals formed by the alteration of tephra in a closed-basin lacustrine and lake-margin environment can retain the overall composition of the original bulk tephra for many elements, even when diagenetic conditions and resulting authigenic mineral assemblages change. [...]
2010 - 10.1346/CCMN.2010.0580504
Clays and Clay Minerals, Vol. 58, Núm. 5 (2010) , p. 627-643  
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8.
6 p, 387.8 KB Effects of hydrothermal parameters on the synthesis of nanocrystalline zeolite NaY / Nouri, Amir (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Mostafa, Jafari (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Mansour, Kazemimoghadam (Iran University of Science and Technology. Research Centre for Membrane Separation Processes) ; Toraj, Mohammadi (Iran University of Science and Technology. Research Centre for Membrane Separation Processes)
Synthesized zeolites are extremely important as industrial minerals and are most commonly prepared using organic templates. Because these organic templates present undesirable environmental hazards, a synthesis method which avoids their use is desirable. [...]
2012 - 10.1346/CCMN.2012.0600606
Clays and Clay Minerals, Vol. 60, Núm. 6 (2012) , p. 610-615  
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9.
11 p, 1.3 MB Adhered zeolite preparation on and within a muscovite mica by hydrothermal growth / Johnson, Christopherd D. (University of Durham. Department of Earth Sciences. Science Laboratories) ; Mallon, Anthoni J. (University of Durham. Department of Earth Sciences. Science Laboratories) ; Worrall, Fred (University of Durham. Department of Earth Sciences. Science Laboratories)
Zeolites other open framework materials Provide a powerful tool for remediation and solidification of a range of cationic wastes (e. g. NH , Pb) due to the combined properties of large surface area and cation exchange capacity. [...]
2006 - 10.1346/CCMN.2006.0540603
Clays and Clay Minerals, Vol. 54, Núm. 6 (2006) , p. 678-688  
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10.
10 p, 1.6 MB Zeolitization of tuffs at Quinamávida, central southern Chile / Bascuñan, Sophía (Universidad de Concepción. Instituto de Geología Económica Aplicada) ; Kelm, Ursula (Universidad de Concepción. Instituto de Geología Económica Aplicada) ; Sanhueza, Vilma (Universidad de Concepción. Instituto de Geología Económica Aplicada) ; Alfaro, Guillermo (Universidad de Concepción. Instituto de Geología Económica Aplicada)
Tuffs of the Tertiary Colbún Formation near Quinamávida in central southern Chile have been mapped and their mineralogy analyzed. The pyroclastic rocks present a maximum outcropping thickness of 120 m and are dominated by vitreous lapilli and minor lithic tuffs, the products of active volcanism nearby. [...]
2007 - 10.1346/CCMN.2007.0550507
Clays and Clay Minerals, Vol. 55, Núm. 5 (2007) , p. 524-533  
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