Printing Electrodes

  • Author: Jonathan Faiz
  • Published Date: 29 January 2013
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Printing Electrodes

A team led by Cristina Giordano, Max Planck Institute for Colloids and Interfaces, Germany, and the National Institute for Materials Science, Japan, have shown how mesostructured graphene nanostructures can be formed by printing an iron catalyst onto paper with an ink-jet printer and subsequent calcination of the sheets. The researchers also showed that microelectrodes could be prepared from these structures by depositing copper onto them.

The procedure starts by filling an empty ink cartridge with an aqueous solution of iron(III) nitrate. This was printed onto a piece of pure cellulose paper. The printed paper was then heated to 800 °C under a flow of nitrogen. After heating, the printed areas turned into iron carbide nanoparticles encapsulated with a multilayer graphitic carbon shell, as well as graphene sheets. The printed areas also showed a higher electrical conductivity than the nonprinted areas, and thus copper could be selectively electrodeposited on the 2D pattern.

A variety of techniques were used to show that the reaction proceeds by the formation of liquid eutectic "droplets" that dissolve the amorphous carbon formed from cellulose and leave behind crystallized graphitic carbon.

The researchers point out that their system is cheap and fast, and can be applied to structured catalytic arrays and paper-based electronics.

Article Views: 2784

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission. more

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH