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C 2018, 4(1), 14; doi:10.3390/c4010014

Mechanochemical Functionalization of Carbon Black at Room Temperature

1
Department of Inorganic Chemistry, Technische Universität Dresden, Bergstraße 66, 01062 Dresden, Germany
2
Institute for Complex Materials, Leibniz Institute for Solid State and Materials Research (IFW) Dresden e.V., Helmholtzstraße 20, 01069 Dresden, Germany
3
Physical Chemistry, Technische Universität Dresden, Bergstraße 66b, 01062 Dresden, Germany
*
Author to whom correspondence should be addressed.
Received: 30 January 2018 / Revised: 8 February 2018 / Accepted: 9 February 2018 / Published: 13 February 2018
(This article belongs to the Special Issue Functional Nanoporous Carbon-Based Materials)
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Abstract

Carbon nanomaterials such as carbon blacks are intrinsically hydrophobic with limited wettability in aqueous media, thus restricting their potential applications. To improve their hydrophilicity, common methods tend to utilize harmful chemicals and conditions, such as a mixture of KMnO4 and H2SO4 or a complex and expensive synthesis setup. In our work, we report a simple method to improve the wettability of these materials by a mechanochemical treatment completed within 1 h at room-temperature utilizing a NH3 solution. Besides increasing the specific surface area of the carbon black from 67 m2·g−1 up to 307 m2·g−1, our process also incorporates nitrogen- and oxygen-containing functional groups into the carbon. This reduces the contact angle from 80° to 30°, confirming an enhanced wettability. Our work presents an easy, fast, and straightforward pathway towards the functionalization of carbon nanomaterials and can be of use in various applications where aqueous wettability is advantageous. View Full-Text
Keywords: carbon black; hydrophilization; functionalization; mechanochemistry; one-pot synthesis; room temperature carbon black; hydrophilization; functionalization; mechanochemistry; one-pot synthesis; room temperature
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Leistenschneider, D.; Zürbes, K.; Schneidermann, C.; Grätz, S.; Oswald, S.; Wegner, K.; Klemmed, B.; Giebeler, L.; Eychmüller, A.; Borchardt, L. Mechanochemical Functionalization of Carbon Black at Room Temperature. C 2018, 4, 14.

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