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michka:research:microbial_fuel_cells:cardiff6 [2017-09-17 10:51] – michka | michka:research:microbial_fuel_cells:cardiff6 [2017-09-17 14:03] – michka | ||
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====0. Abstract==== | ====0. Abstract==== | ||
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====1. Home-made Microbial Fuel Cells (MFCs)==== | ====1. Home-made Microbial Fuel Cells (MFCs)==== | ||
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===1.1 Material list=== | ===1.1 Material list=== | ||
* Graphite powder (Inoxia Ltd, via Ebay) | * Graphite powder (Inoxia Ltd, via Ebay) | ||
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* Graphite rods (scholar stuff) | * Graphite rods (scholar stuff) | ||
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* Wool (old blanket) | * Wool (old blanket) | ||
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* FeO2 powder for ceramicists (via Ebay) | * FeO2 powder for ceramicists (via Ebay) | ||
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* Inox wire (Amazon, for DIY jewel-makers) | * Inox wire (Amazon, for DIY jewel-makers) | ||
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* Food tupperwares with clipping lids (Amazon) | * Food tupperwares with clipping lids (Amazon) | ||
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===1.2 MFC composition=== | ===1.2 MFC composition=== | ||
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Layer by layer, from bottom to top, we have : | Layer by layer, from bottom to top, we have : | ||
- | * serpent-shaped (about 10 crossings across the tupperware) inox wire, with a vertical section insulated with the black (-) plastic cover of a reclaimed multi-fiber wire | + | * serpent-shaped (about 10 crossings across the tupperware) inox wire, with a vertical section insulated with the black (-) plastic cover of a reclaimed multi-fiber wire |
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* 1-cm-thick layer of graphite powder, mixed with water | * 1-cm-thick layer of graphite powder, mixed with water | ||
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* (soaked) wool membrane | * (soaked) wool membrane | ||
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* mud | * mud | ||
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* (soaked) wool membrane | * (soaked) wool membrane | ||
- | * serpent-shaped (about 10 crossings across the tupperware) inox wire, with | + | |
- | * 1-cm-thick layer of graphite powder, mixed with water, with a vertical section insulated with the grey (+) plastic cover of a reclaimed multi-fiber wire | + | {{> |
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+ | * serpent-shaped (about 10 crossings across the tupperware) inox wire, with a vertical section insulated with the grey (+) plastic cover of a reclaimed multi-fiber wire | ||
* A small bit of red mono-fiber wire is woven around the (+) electrode wire to clearly distinguish it from the (-) electrode wire | * A small bit of red mono-fiber wire is woven around the (+) electrode wire to clearly distinguish it from the (-) electrode wire | ||
+ | * 1-cm-thick layer of graphite powder, mixed with water | ||
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+ | {{> | ||
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* both electrode wires are interwoven on the top to avoid the top (+) electrode to sink away from oxygen | * both electrode wires are interwoven on the top to avoid the top (+) electrode to sink away from oxygen | ||
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+ | {{> | ||
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* a small opening is cut on side of the lid with a cutting clamp to let the electrode wires go through towards the circuit | * a small opening is cut on side of the lid with a cutting clamp to let the electrode wires go through towards the circuit | ||
* the lid is drilled with | * the lid is drilled with | ||
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* 1-cm-thick layer of graphite powder, mixed with water | * 1-cm-thick layer of graphite powder, mixed with water | ||
* (soaked) wool membrane | * (soaked) wool membrane | ||
- | * 2 spoons of FeO oxide thoroughly mixed in the mud | + | |
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+ | {{> | ||
* (soaked) wool membrane | * (soaked) wool membrane | ||
* serpent-shaped (about 10 crossings across the tupperware) inox wire, with | * serpent-shaped (about 10 crossings across the tupperware) inox wire, with | ||
* 1-cm-thick layer of graphite powder, mixed with water, with a vertical section insulated with the grey (+) plastic cover of a reclaimed multi-fiber wire | * 1-cm-thick layer of graphite powder, mixed with water, with a vertical section insulated with the grey (+) plastic cover of a reclaimed multi-fiber wire | ||
+ | |||
+ | {{> | ||
+ | |||
* A small bit of red mono-fiber wire is woven around the (+) electrode wire to clearly distinguish it from the (-) electrode wire | * A small bit of red mono-fiber wire is woven around the (+) electrode wire to clearly distinguish it from the (-) electrode wire | ||
* both electrode wires are interwoven on the top to avoid the top (+) electrode to sink away from oxygen | * both electrode wires are interwoven on the top to avoid the top (+) electrode to sink away from oxygen |