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Porous Solids and their Characterization

  • Porous and finely divided solids are distinguished by a large surface to volume ratio. As a result, they have specific properties, such as enhanced reactivity, a high adsorption capacity, and a lowered sinter temperature. This contribution gives a survey over selected aspects of porous solids, with tlfe main emphasis on methods of characterization and their applications. We treat porous solids with a regular pore network (zeolites) and irregular pore structure (sintered compacts,rocks). After a short review of the possibilities orf characterization, we wilI describe the methods of gas adsorption and Hg intrusion in detail. Furthermore, we will give a critical assessment of the measurement of typical characterization parameters, such as the spedfic surface area, the pore volume and the pore volume distribution. The fractal character of large-surface and porous solids and the related uncertainty of the outcomes of measurements result in the necessity of standardization of experimentalPorous and finely divided solids are distinguished by a large surface to volume ratio. As a result, they have specific properties, such as enhanced reactivity, a high adsorption capacity, and a lowered sinter temperature. This contribution gives a survey over selected aspects of porous solids, with tlfe main emphasis on methods of characterization and their applications. We treat porous solids with a regular pore network (zeolites) and irregular pore structure (sintered compacts,rocks). After a short review of the possibilities orf characterization, we wilI describe the methods of gas adsorption and Hg intrusion in detail. Furthermore, we will give a critical assessment of the measurement of typical characterization parameters, such as the spedfic surface area, the pore volume and the pore volume distribution. The fractal character of large-surface and porous solids and the related uncertainty of the outcomes of measurements result in the necessity of standardization of experimental procedures and in the need for reference materials. The section on applications treats examples of porous solids from different areas: densification of ceramic materials, porous ceramic carriers for flue gas desulfurization, technical catalysts (zeolite/binder), zeolites for the separation of substances, sedimentary and crystalline rocks.zeige mehrzeige weniger

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Metadaten
Autor*innen:Klaus Meyer, Peter Lorenz, Barbara Röhl-Kuhn, Peter Klobes
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Crystal research and technology
Jahr der Erstveröffentlichung:1994
Verlag:Wiley-VCH Verlag GmbH & Co. KGaA
Verlagsort:Weinheim
Jahrgang/Band:29
Ausgabe/Heft:7
Erste Seite:903
Letzte Seite:930
ISSN:0023-4753
ISSN:1521-4079
ISSN:0232-1300
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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