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High-Surface-Area, Emulsion-Templated Carbon Foams by Activation of polyHIPEs Derived from Pickering Emulsions

1
Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
2
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
3
Polymer and Composite Engineering (PaCE) Group, Institute of Materials Chemistry & Research, Faculty of Chemistry, University of Vienna, Währingerstraße 42, Vienna 1090, Austria
*
Author to whom correspondence should be addressed.
Academic Editors: To Ngai and Jonathan Phillips
Materials 2016, 9(9), 776; https://doi.org/10.3390/ma9090776
Received: 30 June 2016 / Revised: 31 August 2016 / Accepted: 9 September 2016 / Published: 14 September 2016
(This article belongs to the Special Issue Pickering Emulsion and Derived Materials)
Carbon foams displaying hierarchical porosity and excellent surface areas of >1400 m2/g can be produced by the activation of macroporous poly(divinylbenzene). Poly(divinylbenzene) was synthesized from the polymerization of the continuous, but minority, phase of a simple high internal phase Pickering emulsion. By the addition of KOH, chemical activation of the materials is induced during carbonization, producing Pickering-emulsion-templated carbon foams, or carboHIPEs, with tailorable macropore diameters and surface areas almost triple that of those previously reported. The retention of the customizable, macroporous open-cell structure of the poly(divinylbenzene) precursor and the production of a large degree of microporosity during activation leads to tailorable carboHIPEs with excellent surface areas. View Full-Text
Keywords: carbon; polyHIPE; carboHIPE; Pickering emulsion; carbonization; microporous; emulsion template carbon; polyHIPE; carboHIPE; Pickering emulsion; carbonization; microporous; emulsion template
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Woodward, R.T.; De Luca, F.; Roberts, A.D.; Bismarck, A. High-Surface-Area, Emulsion-Templated Carbon Foams by Activation of polyHIPEs Derived from Pickering Emulsions. Materials 2016, 9, 776.

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