Organic Redox-Flow Batteries Using Hair Dyes and Pharmaceuticals

Abstract

In the last few years the number of renewable energy sources (e.g. wind or solar energy) increased drastically. The availability of solar energy depends on the amount of daily sun light and the availability of electric power from wind turbines is linked to the available wind offered by nature. The increase of power from renewable energy sources has to be combined with innovative energy storage systems. Solar, wind and other renewable energy sources are intermittent energy sources. Consequently, with more renewable energy sources the amount of intermittent energy increases, too. Due to this, there is a need for more and more flexible and efficient energy storage systems with high capacities to guarantee the stability of the electric grid. Such energy storage systems, which are discussed right at the moment, are so called flow batteries. This article presents an experimental set-up that demonstrates the functionality of Redox-Flow-Batteries to students in chemistry lessons. Such efficient organic Redox-Flow-Batteries can use hair dyes like Phenylenediamine and pharmaceuticals such as Paracetamol. The decomposition product of Paracetamol, p-Aminophenol proved to be a particular suitable candidate, which is shown via cyclic voltammetry.

Organic Batteries with ascorbic acid and the some different lemon battery

“…Paracetamoli st einN -Acetylderivat desp -Aminophenols. In [13] habenwir gezeigt, dass Paracetamol in alkalischerLçsung in einero rganischen Batterie zu N-acetyl-Benzochinonimin oxidiert werden kann (Abb.12).I nd er Grippostad-Batterie werden sowohl Ascorbinsäurea ls auch Paracetamolo xidiert. Im Laufev on einigenT agen wird in alkalischerL çsungd ie Acetylgruppe abgespaltenu nd dase lektrochemisch noch besser geeignetep -Aminophenol gebildet.…”

“…Im Laufev on einigenT agen wird in alkalischerL çsungd ie Acetylgruppe abgespaltenu nd dase lektrochemisch noch besser geeignetep -Aminophenol gebildet. Dieses kann ebenfallse lektrochemisch zu einemC hinon-imin umgesetzt werden [13].…”

Organic (Redox-Flow-)Batteries Using Compounds out of Bark and Peat as well as Humic Acids

“…Therefore, some simple settings and several organic substances are given for the demonstration of the principle of Redox-Flow-Cells in the following article. In our previous communications [14,15,16,17] we showed that Alizarin, Gallic acid, Henna red, Paracetamol and many more can be used as anodic material for organic batteries. Green tea and the flavoring substance Vanillin can be likewise electrochemically oxidized [18,19].…”