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Issue 32, 2011
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Ultralow density, hollow silica foams produced through interfacial reaction and their exceptional properties for environmental and energy applications

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Abstract

We report a novel, facile, and reproducible method for large-scale production of highly porous, hollow silica foams (hollow spheres) with a robust ultrathin shell of several nanometres through a simple, one-step, bubble-controlled, interfacial hydrolysis reaction. This material has exceptional properties, including ultralow density (0.028 g cm−3, approaching 99% porosity), good thermal stability up to 1000 °C, an exceptionally high capacity for oil uptake from mixed solvents (up to 25.6 cm3 g−1), and a very low thermal conductivity comparable to ultralow density silica aerogels.

Graphical abstract: Ultralow density, hollow silica foams produced through interfacial reaction and their exceptional properties for environmental and energy applications

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Publication details

The article was received on 09 May 2011, accepted on 19 May 2011 and first published on 05 Jul 2011


Article type: Paper
DOI: 10.1039/C1JM12040A
Citation: J. Mater. Chem., 2011,21, 12041-12046
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    Ultralow density, hollow silica foams produced through interfacial reaction and their exceptional properties for environmental and energy applications

    Q. Yue, Y. Li, M. Kong, J. Huang, X. Zhao, J. Liu and R. E. Williford, J. Mater. Chem., 2011, 21, 12041
    DOI: 10.1039/C1JM12040A

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