4.5 Article

Towards Reproducible Fabrication of Nanometre-Sized Carbon Electrodes: Optimisation of Automated Nanoelectrode Fabrication by Means of Transmission Electron Microscopy

期刊

CHEMELECTROCHEM
卷 5, 期 20, 页码 3083-3088

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201800600

关键词

electrode fabrication; electron microscopy; nanometre-sized carbon electrodes; nanotechnology; setup automatisation

资金

  1. Deutsche Forschungsgemeinschaft [FOR 2397-1, SCHU 929/15-1]
  2. Cluster of Excellence Resolv [EXC1069]
  3. Association of the Chemical Industry e.V. (VCI)

向作者/读者索取更多资源

The reproducible fabrication of nanometre-sized carbon electrodes poses great challenges. Especially, the field of single entity electrochemistry has strict requirements regarding the geometry of these electrochemical probes. Herein, an automated setup for the fabrication of carbon nanoelectrodes based on the pyrolysis of a propane/butane gas mixture within pulled quartz capillaries by means of a moving heating coil is presented. It is shown that mere electrochemical characterisation with conventional redox mediators does not allow for a reliable assessment of the electrode's geometry and quality. Therefore, high-throughput transmission electron microscopy is used in parallel to evaluate and optimise preparation parameters. Control of the latter gives access to three different electrode types: nanopipettes, nanosamplers and nanodisks.

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