{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670321102351360.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1346/ccmn.1984.0320203"}},{"identifier":{"@type":"URI","@value":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S000986040001137X"}}],"dc:title":[{"@value":"Cross-Linked Smectites. III. Synthesis and Properties of Hydroxy-Aluminum Hectorites and Fluorhectorites"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Interaction of La<jats:sup>3+</jats:sup>- and Ce<jats:sup>3+</jats:sup>-exchanged hectorites with oligomeric hydroxy-Al cations results in the formation of cross-linked hectorites possessing moderately high surface areas (~ 220–280 m<jats:sup>2</jats:sup>/g) and high thermal stability. The basal spacings of these products were generally in the range 17.0–18.0 A, the exact d(001) value depending on the age of the hydroxy-Al oligomeric solution and on the pH of the starting hectorite dispersion. Interaction of Li- or Ce-fluorhectorite with hydroxy-Al oligocations produced the corresponding cross-linked fluorhectorites, which showed markedly higher basal spacings (18.2–20.0 Å for air-dried samples), surface areas (~300–380 m<jats:sup>2</jats:sup>/g), and thermal stability, as compared with those of the cross-linked hectorites. The cross-linking agent applied in the synthesis of the hydroxy-Al hectorite and fluorhectorite products consisted of a solution of hydroxy-Al oligomers aged for periods of 7 to 27 days. A constant ratio of 2.0 mmole Al/g of smectite was used in all preparations. The high basal spacings and porosity of the newly synthesized products are consistent with a structure similar to that previously proposed for cross-linked hydroxy-Al montmorillonite.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670321102351360","@type":"Researcher","foaf:name":[{"@value":"J. Shabtai"}]},{"@id":"https://cir.nii.ac.jp/crid/1380862723097111808","@type":"Researcher","foaf:name":[{"@value":"Maria Rosell"}]},{"@id":"https://cir.nii.ac.jp/crid/1380862723097111809","@type":"Researcher","foaf:name":[{"@value":"M. Tokarz"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00098604"},{"@type":"EISSN","@value":"15528367"}],"prism:publicationName":[{"@value":"Clays and Clay Minerals"}],"dc:publisher":[{"@value":"Cambridge University Press (CUP)"}],"prism:publicationDate":"1984-04","prism:volume":"32","prism:number":"2","prism:startingPage":"99","prism:endingPage":"107"},"reviewed":"false","dc:rights":["https://www.cambridge.org/core/terms"],"url":[{"@id":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S000986040001137X"}],"createdAt":"2006-08-25","modifiedAt":"2024-04-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002219108035456","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Synthesis of Novel Ni-Hectorite Inorganic Complexes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283694079940992","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Acidity Enhanced Pillared Clay Catalysts. Modification of Exchangeable Sites on Fluor-tetrasilicic Mica by the Fixed Interlayer Cations"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1346/ccmn.1984.0320203"},{"@type":"CROSSREF","@value":"10.1246/bcsj.62.3221_references_DOI_mtq8OhMu3ReHTi2DkdeK8ybtw1"},{"@type":"CROSSREF","@value":"10.1246/cl.1988.2045_references_DOI_mtq8OhMu3ReHTi2DkdeK8ybtw1"}]}