Supercritical fluid growth of porous carbon nanocages
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Accepted version
Date
2007-05-24
Authors
Li, Zhonglai
Jaroniec, Mietek
Papakonstantinou, Pagona
Tobin, Joseph M.
Vohrer, Uwe
Kumar, Shailesh
Attard, Gary
Holmes, Justin D.
Journal Title
Journal ISSN
Volume Title
Publisher
American Chemical Society, ACS
Published Version
Abstract
Carbon nanocages, with remarkably large mesoporous volumes, have been synthesized by the deposition of p-xylene over a Co/Mo catalyst in supercritical carbon dioxide. Nanocages with diameters ranging between 10 and 60 nm were synthesized at temperatures between 650 and 750 °C. The surface area and pore volume of the nanocages produced was found to depend on the reaction temperature and pressure employed. In particular, carbon nanocages with a pore volume of up to 5.8 cm3 g-1 and a BET surface area of 1240 m2 g-1 were readily synthesized at a temperature of 650 °C and a pressure of 10.34 MPa. The high pore volume and surface area of the carbon nanocages synthesized makes them ideal materials for use as inert adsorbents and catalytic supports.
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Keywords
Porous materials , Adsorbents , Carbon , Carbon dioxide , Pressure effects , Supercritical fluids , Synthesis (chemical) , Xylene , Carbon nanocages , Catalytic supports , Co/Mo catalyst , P-xylene , Pore volume
Citation
Li, Z., Jaroniec, M., Papakonstantinou, P., Tobin, J. M., Vohrer, U., Kumar, S., Attard, G. and Holmes, J. D. (2007) 'Supercritical Fluid Growth of Porous Carbon Nanocages', Chemistry of Materials, 19(13), pp. 3349-3354. doi: 10.1021/cm070767r
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Copyright
© 2007 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/cm070767r