Tailoring the porosity of a mesoporous carbon by a solvent-free mechanochemical approach

The synthesis of mesoporous carbons with well-defined and tailored pores conventionally involves the use of solvents and proceeds via multiple synthesis steps such as template synthesis and precursor infiltration. In this work, a solvent-free mechanochemical polymerization is used to derive mesoporo...

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Bibliographic Details
Published in:Carbon (New York) 2019-06, Vol.147, p.43-50
Main Authors: Leistenschneider, Desirée, Wegner, Karl, Eßbach, Claudia, Sander, Miriam, Schneidermann, Christina, Borchardt, Lars
Format: Article
Language:English
Subjects:
Carbon
Infiltration
Polymerization
Pore size
Porosity
Solvents
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Summary:The synthesis of mesoporous carbons with well-defined and tailored pores conventionally involves the use of solvents and proceeds via multiple synthesis steps such as template synthesis and precursor infiltration. In this work, a solvent-free mechanochemical polymerization is used to derive mesoporous carbons with narrow pore size distributions and specific surface areas of up to 1660 m2 g−1. The size of the mesopores can be tailored by simply adjusting milling parameters like the milling speed. Finally, the carbons have been applied as supercapacitors through a new approach - the ‘in situ electrolyte’ concept. This holistic concept does not treat the accumulating by-products of the carbon synthesis as waste, but rather utilizes them directly as electrolyte salts. With this, washing steps are circumvented and the use of any solvent becomes obsolete. [Display omitted]
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2019.02.065