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Synthesis of Ordered Mesoporous Carbon Materials by Dry Etching
Authors:Winfried Nickel  Dr. Martin Oschatz  Soledad Rico‐Francés  Stefan Klosz  Tim Biemelt  Dr. Giovanni Mondin  Prof. Dr. Alexander Eychmüller  Prof. Dr. Joaquín Silvestre‐Albero  Prof. Dr. Stefan Kaskel
Affiliation:1. Department of Inorganic Chemistry, TU Dresden, Bergstrasse 66, 01069 Dresden (Germany), Fax: (+49)?351‐463‐37287;2. Group of Inorganic Chemistry and Catalysis, University of Utrecht, Universiteitsweg 99, 3584 CG, Utrecht (The Netherlands);3. Departamento de Química Inorgánica‐Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, 03080 Alicante (Spain);4. Department of Physical Chemistry, TU Dresden, Bergstrasse 66b, 01069 Dresden (Germany)
Abstract:A novel synthesis method for ordered mesoporous carbons is presented. The inverse replication of a silica template was achieved using the carbonization of sucrose within mesoporous KIT‐6. Instead of liquid acid etching, as in classical nanocasting, a novel dry chlorine etching procedure for template removal is presented for the first time. The resultant ordered mesostructured carbon material outperforms carbons obtained by conventional hard templating with respect to high specific micro‐ and mesopore volumes (0.6 and 1.6 cm3 g?1, respectively), due to the presence of a hierarchical pore system. A high specific surface area of 1671 m2 g?1 was achieved, rendering this synthesis route a highly convenient method to produce ordered mesoporous carbons.
Keywords:adsorption  carbon  hierarchical pore system  mesoporous materials  nanoporous carbon
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