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Correction: Lu, D., et al. MoO3-Doped MnCo2O4 Microspheres Consisting of Nanosheets: An Inexpensive Nanostructured Catalyst to Hydrolyze Ammonia Borane for Hydrogen Generation. Nanomaterials 2019, 9, 21
Open AccessArticle

Simple Method to Improve Electrical Conductivity of Films Made from Single-Walled Carbon Nanotubes

Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18, 44-100 Gliwice, Poland
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(8), 1113;
Received: 15 July 2019 / Revised: 1 August 2019 / Accepted: 1 August 2019 / Published: 2 August 2019
Despite the widespread use of sonication for individualization of nanomaterials, its destructive nature is rarely acknowledged. In this study, we demonstrated how exposure of the material to a hostile sound wave environment can be limited by the application of another preprocessing step. Single-walled carbon nanotubes (CNTs) were initially ground in a household coffee grinder, which enabled facile deagglomeration thereof. Such a simple approach enabled us to obtain high-quality CNT dispersion at reduced sonication time. Most importantly, electrical conductivity of free-standing films prepared from these dispersion was improved almost fourfold as compared with unground material eventually reaching 1067 ± 34 S/cm. This work presents a new approach as to how electrical properties of nanocarbon ensembles may be enhanced without the application of doping agents, the presence of which is often ephemeral. View Full-Text
Keywords: carbon nanotubes; electrical conductivity; thermal conductivity carbon nanotubes; electrical conductivity; thermal conductivity
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MDPI and ACS Style

Kumanek, B.; Wasiak, T.; Stando, G.; Stando, P.; Łukowiec, D.; Janas, D. Simple Method to Improve Electrical Conductivity of Films Made from Single-Walled Carbon Nanotubes. Nanomaterials 2019, 9, 1113.

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