Die Mikrobielle Brennstoffzelle in Theorie und Praxis

Abstract
Die Mikrobielle Brennstoffzelle in Theorie und Praxis
The main aim of this paper is to describe the operating principles and the usage of microbial fuel
cells (MFC). In MFCs it is possible to generate current by directly converting organic substrate
into electricity. This is achieved by using the metabolism of microorganisms.
The experiments described by H.P. Bennetto (“Electricity generation by microorganisms” 1 ) and
by W. Schatz („Bau einer bionischen Brennstoffzelle im Low-Cost-Verfahren“ 2 ) were carried
out during a school program spanning a two year time period. Series of about 20 experiments
were then conducted in the school laboratory to study these phenomena in greater detail. The aim
was the construction of a set of MFCs which was capable of powering a consumer like a small
light bulb, a motor or an LED.
A description of what Fuel Cells and Microbial Fuel Cells are can be found in the accompanying
document; how they work and where they can be used. Also included are the proposal of what
was to be examined, a description of the most important experiments and a list of all the results.
1 http://www.ncbe.reading.ac.uk/ncbe/materials/MICROBIOLOGY/PDF/bennetto.pdf (Stand: 20.3.08)
2 „Bau einer bionischen Brennstoffzelle im Low-Cost-Verfahren“
Schatz, Wolfgang, Chemie und Schule (Salzburg) 22 (2007), Nr. 4, Seite 24 - 25
3