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  One-pot synthesis of polyhedron-like hollow aluminosilicate with mesoporous shells

Gu, X., Tao, H., Schmidt, W., Lu, G., & Wang, Y. (2012). One-pot synthesis of polyhedron-like hollow aluminosilicate with mesoporous shells. Journal of Materials Chemistry A, 22(6), 2473-2477. doi:10.1039/c1jm13400k.

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 Urheber:
Gu, Xin1, Autor
Tao, Haixiang 1, Autor
Schmidt, W.2, Autor           
Lu, Guanzhong1, Autor
Wang, Yanqin1, Autor
Affiliations:
1E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Res Inst Ind Cytalysis, Shanghai 200237, Peoples R China, ou_persistent22              
2Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, DE, ou_1445618              

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Schlagwörter: CONTROLLED DESILICATION; ALUMINUM DISTRIBUTION; ZSM-5 CRYSTALS; ZEOLITE ZSM-5; MFI ZEOLITES; PARTICLES; SPHERES; MICROCAPSULES; NANOPARTICLES; RELEASE
 Zusammenfassung: Hollow mesoporous aluminosilicate particles have been synthesized through a one-pot synthesis without using any cavity-forming template. The hollow particles have mesoporous shells with surface areas up to 1300 m(2) g(-1). The thickness of the shell can be adjusted from about 30 nm to 50 nm by tuning the molar Si/Al ratio and/or variation of the time of hydrothermal treatment. EDX analysis (element mapping) revealed a certain zoning of aluminum in the amorphous aluminosilicate particles investigated. There is an enrichment of Al on the outside of the particles close to the surface. The presence of aluminum appeared to be the key factor for the inhomogeneous dissolution of the aluminosilicate (dissolution of silicon-enriched cores) that leads to the formation of hollow particles

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 Datum: 2011-11-112011-07-192011-12-222012
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1039/c1jm13400k
ISSN: 0959-9428
 Art des Abschluß: -

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Titel: Journal of Materials Chemistry A
Genre der Quelle: Zeitschrift
 Urheber:
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 22 (6) Artikelnummer: - Start- / Endseite: 2473 - 2477 Identifikator: ISSN: 2050-7488
CoNE: https://pure.mpg.de/cone/journals/resource/2050-7488