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

机译:通过活化源自Pickering乳液的polyHIPEs的高表面面积以乳液为模板的碳泡沫

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摘要

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.
机译:通过活化大孔聚二乙烯基苯可以生产出具有分层孔隙率和> 1400 m 2 / g的优异表面积的碳泡沫。聚(二乙烯基苯)是由简单的高内相Pickering乳液的连续相(少数)相聚合而成的。通过添加KOH,可以在碳化过程中诱导材料的化学活化,从而生产出具有Pickering乳液模板的碳泡沫或carboHIPEs,其可定制的大孔直径和表面积几乎是以前报道的三倍。聚(二乙烯基苯)前体的可定制的大孔开孔结构的保留和活化过程中产生的大量微孔导致可定制的具有出色表面积的carboHIPE。

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