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Mechanochemistry-assisted synthesis of hierarchical porous carbons applied as supercapacitors

  • A solvent-free synthesis of hierarchical porous carbons is conducted by a facile and fast mechanochemical reaction in a ball mill. By means of a mechanochemical ball-milling approach, we obtained titanium(IV) citrate-based polymers, which have been processed via high temperature chlorine treatment to hierarchical porous carbons with a high specific surface area of up to 1814 m2 g−1 and well-defined pore structures. The carbons are applied as electrode materials in electric double-layer capacitors showing high specific capacitances with 98 F g−1 in organic and 138 F g−1 in an ionic liquid electrolyte as well as good rate capabilities, maintaining 87% of the initial capacitance with 1 M TEA-BF4 in acetonitrile (ACN) and 81% at 10 A g−1 in EMIM-BF4.

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Document Type:Article
Author:Desirée LeistenschneiderORCiD, Nicolas JäckelORCiD, Felix Hippauf, Volker PresserORCiD, Lars BorchardtORCiD
Parent Title (English):Beilstein Journal of Organic Chemistry
First Page:1332
Last Page:1341
Year of first Publication:2017
Release Date:2022/11/18
Impact:02.330 (2017)
Funding Information:Bundesministerium für Bildung und Forschung, BMBF (03SF0498)
Scientific Units:Energy Materials
Open Access:Open Access
Signature:INM 2017/046
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International