A general approach to crystalline and monomodal pore size mesoporous materials

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Author list: Poyraz AS, Kuo CH, Biswas S, King'ondu CK, Suib SL

Publisher: Nature Research

Place: LONDON

Publication year: 2013

Journal: Nature Communications (2041-1723)

Journal acronym: NAT COMMUN

Volume number: 4

Number of pages: 10

ISSN: 2041-1723

eISSN: 2041-1723

Languages: English-Great Britain (EN-GB)

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Abstract

Mesoporous oxides attract a great deal of interest in many fields, including energy, catalysis and separation, because of their tunable structural properties such as surface area, pore volume and size, and nanocrystalline walls. Here we report thermally stable, crystalline, thermally controlled monomodal pore size mesoporous materials. Generation of such materials involves the use of inverse micelles, elimination of solvent effects, minimizing the effect of water content and controlling the condensation of inorganic frameworks by NOx decomposition. Nanosize particles are formed in inverse micelles and are randomly packed to a mesoporous structure. The mesopores are created by interconnected intraparticle voids and can be tuned from 1.2 to 25 nm by controlling the nanoparticle size. Such phenomena allow the preparation of multiple phases of the same metal oxide and syntheses of materials having compositions throughout much of the periodic table, with different structures and thermal stabilities as high as 800 degrees C.

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