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Journal of Materials Science

, Volume 45, Issue 21, pp 5778–5785 | Cite as

Bimodal cellular activated carbons derived from tannins

  • W. Zhao
  • V. Fierro
  • A. Pizzi
  • A. Celzard
Article

Abstract

New cellular activated carbons mainly derived from tannins and furfuryl alcohol are introduced and suggested as adsorbents and catalyst supports. They present a bimodal porosity, based on a highly porous, reticulated vitreous carbon backbone, whose micro/meso-porosity was developed by steam activation. The macroporosity corresponds to the connected network of cells whose average diameter is close to 250 μm. In contrast, the micro/meso-porosity is located at the inner surface of the cells and is thus fully and easily accessible. Consequently, much higher adsorption kinetics than for usual granular activated carbons are expected. A burn-off close to 30% was shown to be optimal for getting a high proportion of microporosity without complete loss of mechanical resistance. In these conditions, the surface area is close to 850 m2 g−1, thus similar to that of many commercial carbonaceous adsorbents.

Keywords

Foam Activate Carbon Tannin Furfuryl Alcohol Carbon Foam 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors gratefully acknowledge the financial support of the CPER 2007-2013 “Structuration du Pôle de Compétitivité Fibres Grand’Est” (Competitiveness Fibre Cluster), through local (Conseil Général des Vosges), regional (Région Lorraine), national (DRRT and FNADT) and European (FEDER) funds.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Département 2: Chimie et Physique des Solides et des Surfaces, Institut Jean LamourUMR 7198, CNRS – Nancy-Université – UPV-Metz, ENSTIBEpinal Cedex 9France
  2. 2.ENSTIB – LERMABEpinal Cedex 9France

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