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The DOI matches its Crossref record; 60 of the 60 references it cites were found in a registry or an index.

MCM-48-like Large Mesoporous Silicas with Tailored Pore Structure: Facile Synthesis Domain in a Ternary Triblock Copolymer−Butanol−Water System

Kim, Tae-Wan, Kleitz, Freddy, Paul, Blain, Ryoo, Ryong·2005·Journal of the American Chemical Society

Abstract

Assembly of mesostructured silica using Pluronic P123 triblock copolymer (EO(20)-PO(70)-EO(20)) and n-butanol mixture is a facile synthesis route to the MCM-48-like ordered large mesoporous silicas with the cubic Iad mesostructure. The cubic phase domain is remarkably extended by controlling the amounts of butanol and silica source correspondingly. The extended phase domain allows synthesis of the mesoporous silicas with various structural characteristics. Characterization by powder X-ray diffraction, nitrogen physisorption, scanning electron microscopy, and transmission electron microscopy reveals that the cubic Iad materials possess high specific surface areas, high pore volumes, and readily tunable pore diameters in narrow distribution of sizes ranging from 4 to 12 nm. Moreover, generation of complementary pores between the two chiral channels in the gyroid Iad structure can be controlled systematically depending on synthesis conditions. Carbon replicas, using sucrose as the carbon precursor, are obtained with either the same Iad structure or I4(1)/a (or lower symmetry), depending on the controlled synthesis conditions for silica. Thus, the present discovery of the extended phase domain leads to facile synthesis of the cubic Iad silica with precise structure control, offering vast prospects for future applications of large-pore silica materials with three-dimensional pore interconnectivity.

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Metadata

Authors
Kim, T.-W., Kleitz, F., Paul, B., & Ryoo, R.
Venue
Journal of the American Chemical Society
Published
2005-04-27
Volume
127
Issue
20
Pages
7601-7610
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2050801701
Cited by
733
References
60
FWCI
18.74
Type
journal article
Language
en
Open access
closed

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